Re: [CentOS] btrfs in centos 6

[Greg Lindahl]

On Fri, Apr 11, 2014 at 05:03:42PM -0700, Greg Lindahl wrote:

> I can create and fiddle
> with btrfs filesystems just fine, but attempting to mount them
> produces an oops.

My corollary to Murphy's Law is functioning perfectly: After asking
the question (which I've been vaguely wondering about for a few weeks),
I figured out my error 2 minutes later.

I was attempting to mount btrfs onto /home, which already had a
filesystem mounted on it. Shouldn't have caused a panic.

Anyway, nevermind.

-- greg


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[CentOS] btrfs in centos 6

[Greg Lindahl]

I played with btrfs in centos 6.3 and it seemed to mostly work. Now
I'm building some new systems with 6.5, where I'd like to have some
data disks using btrfs - not the system disk. I can create and fiddle
with btrfs filesystems just fine, but attempting to mount them
produces an oops. Surfing the Internets has not enlightened me.

I installed btrfs-progs, and can modprobe btrfs, no problem.

This warning appears:
[root@h-248-254 ~]# btrfsck /dev/sdb
failed to open /dev/btrfs-control skipping device registration

Which I see I can fix with
[root@h-248-254 ~]# mknod /dev/btrfs-control c 10 234
[root@h-248-254 ~]# btrfsck /dev/sdb
checking extents
...

which makes me think that I'm missing some udev rules? And then for
the mount oops I only have a photo, but the call chain is

...
bad_area
__do_page_fault
call_rcu_sched
call_rcu
do_page_fault
page_fault
selinux_set_mnt_opts
superblock_doinit
deactiviate_locked_super
selinux_sb_kern_mount
security_sb_kern_mount
vfs_kern_mount
do_kern_mount

I'm not 100% sure this hardware is OK ... but I can do lots of stuff
with the btrfs progs and never see any problems.

Can anyone who has this working give me a clue? Thanks.

-- greg

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

John R Pierce wrote:
> On 4/11/2014 11:26 AM, Fernando Cassia wrote:
>> I know what it is for (SAN) but I've never worked with fiberchannel. Can
>> I get SATA ports out of this though some adapter?
>> Like
>> http://www.ebay.com/itm/LOT-OF-10-Emulex-250-076-900D-SATA-TO-FIBRE-CHANNEL-ADAPTER-/151263868767
>
> FC infrastucture is very expensive, it would be insane to use it to run
> a SATA adapter so you could use a cheap drive.

Yeah. I just recently had to find a couple of HP short (.5m) fibre channel
cables for an older HP dl380 to an HP RAID box, and after *much*
searching, found them for $22 USD each.
>
>> btw: what is wrong with HP? The pictures are so tiny that they're
>> virtually useless

I'm *really* underwhelmed by HP in general. Lots of proprietary stuff, and
latest is that you can't *get* some updates unless you have a support
contract. Then there was the firmware update that I had to extract from a
self-extracting .exe, and when I finally tried it, it just ran - I'm
spoiled by Dell's firmware updates, that will happily run under CentOS,
*and* give you warm fuzzies (collecting data - this update is, in fact,
for this hardware, and is newer than what you have installed, would you
like to update" before it does the update).

 mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:35 PM, John R Pierce  wrote:

> looked up that ISP2312 QLogic chip on the FC HBA, its is
> PCI-X, not PCI-E, and again, its on a proprietary mezzenaine form factor.
>

I come from the Amiga world where tiny firms designed all sorts of
mezzanine adapter boards to add functions to the obsolete Commodore
mobos... ;) so nothing is *technically* impossible. 

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Les Mikesell]

On Fri, Apr 11, 2014 at 1:52 PM, Fernando Cassia  wrote:
> On Fri, Apr 11, 2014 at 3:49 PM, Les Mikesell  wrote:
>
>> Unless you need the space-heater functionality it is hard to beat a VM
>> for the experimental stages of anything. Generally you can just
>> download an iso image to the host, map the file as the guest DVD, and
>> boot into whatever you want.
>>
>
> Yes, I use Virtualbox on my AMD Opteron box because of its AMD-V support
> since it makes virtualization faster..
> Oh, I get what you mean now. Continued 24/7 use of the blades will hit my
> power bill whereas the AMD-V Opteron is more power efficient. Got it. :)

Yes - maintaining old junk might have been worth it (and sometimes
fun...)  when computing power was expensive, but now it is going to
cost you both time and money to keep it compared to using something
current.   And don't forget that besides the direct power consumption
you'll also pay to air-condition that extra heat away if you run it it
the summer.

-- 
   Les Mikesell
lesmikes...@gmail.com
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:49 PM, Les Mikesell  wrote:

> Unless you need the space-heater functionality it is hard to beat a VM
> for the experimental stages of anything. Generally you can just
> download an iso image to the host, map the file as the guest DVD, and
> boot into whatever you want.
>

Yes, I use Virtualbox on my AMD Opteron box because of its AMD-V support
since it makes virtualization faster..
Oh, I get what you mean now. Continued 24/7 use of the blades will hit my
power bill whereas the AMD-V Opteron is more power efficient. Got it. :)

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Les Mikesell]

On Fri, Apr 11, 2014 at 1:28 PM, Fernando Cassia  wrote:
>
>> So... wouldn't it be a lot more practical to run a VM or 2 there than
>> whatever you were planning for that power-sucking chassis even if you
>> did have the right power supply?
>>
>
> I'm still in the pipe dream phase. :) I'm sure eventually I'll find a real
> use for it.;)
> So thanks for the suggestion, once I stop daydreaming I will.

Unless you need the space-heater functionality it is hard to beat a VM
for the experimental stages of anything. Generally you can just
download an iso image to the host, map the file as the guest DVD, and
boot into whatever you want.

-- 
   Les Mikesell
  lesmikes...@gmail.com
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:41 PM,  wrote:

> Aren't those wonderful - and *so* much safer and better than the radiant
> ones?
>

Yes, that's why I bought 'em. Mines are 15 yrs old and still running. :o)

But then down here @ BA City we don't have such strong winters like most of
the USA
http://www.worldweatheronline.com/Buenos-Aires-weather-averages/Distrito-Federal/AR.aspx
(for F degrees figures click on 'change units' at top-right of the page).

Sorry, we're getting into OT territory ;) so let me add that with those you
can keep your feet warm while you configure your CentOS boxes. 

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 2:54 PM, John R Pierce 
> wrote:
>
>> thats 3000 watts each.
>
> Just like my oil-filled radiator heaters...
> http://goo.gl/mO9Rzo

Aren't those wonderful - and *so* much safer and better than the radiant
ones?

   mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[John R Pierce]

On 4/11/2014 11:26 AM, Fernando Cassia wrote:
> I know what it is for (SAN) but I've never worked with fiberchannel. Can I
> get SATA ports out of this though some adapter?
> Like
> http://www.ebay.com/itm/LOT-OF-10-Emulex-250-076-900D-SATA-TO-FIBRE-CHANNEL-ADAPTER-/151263868767

FC infrastucture is very expensive, it would be insane to use it to run 
a SATA adapter so you could use a cheap drive.

> btw: what is wrong with HP? The pictures are so tiny that they're virtually
> useless
>
> see
> https://h10057.www1.hp.com/ecomcat/hpcatalog/specs/provisioner/99/361426-B21.htm
> useless thumbnail pic!

obsolete products, old catalog info.

anyways, I looked up that ISP2312 QLogic chip on the FC HBA, its is 
PCI-X, not PCI-E, and again, its on a proprietary mezzenaine form factor.


-- 
john r pierce  37N 122W
somewhere on the middle of the left coast

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Les Mikesell]

On Fri, Apr 11, 2014 at 1:17 PM, Fernando Cassia  wrote:
>>
> Those old Xeon's will NOT support 64bit virtualization.
>>
> I don't care as I have my AMD Opteron with AMD-V for that ;)

So... wouldn't it be a lot more practical to run a VM or 2 there than
whatever you were planning for that power-sucking chassis even if you
did have the right power supply?

-- 
   Les Mikesell
 lesmikes...@gmail.com
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:25 PM, Les Mikesell  wrote:

> So... wouldn't it be a lot more practical to run a VM or 2 there than
> whatever you were planning for that power-sucking chassis even if you
> did have the right power supply?
>

I'm still in the pipe dream phase. :) I'm sure eventually I'll find a real
use for it.;)
So thanks for the suggestion, once I stop daydreaming I will.

FC
-- 
During times of Universal Deceit, telling the truth becomes a revolutionary
act
- George Orwell
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:07 PM, John R Pierce  wrote:

> and they support HP
> 361426-B21 2Gbps Fiberchannel Host Bus Adapters.
>

I know what it is for (SAN) but I've never worked with fiberchannel. Can I
get SATA ports out of this though some adapter?
Like
http://www.ebay.com/itm/LOT-OF-10-Emulex-250-076-900D-SATA-TO-FIBRE-CHANNEL-ADAPTER-/151263868767

btw: what is wrong with HP? The pictures are so tiny that they're virtually
useless

see
https://h10057.www1.hp.com/ecomcat/hpcatalog/specs/provisioner/99/361426-B21.htm
useless thumbnail pic!
FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:15 PM, John R Pierce  wrote:

> 4 large healthy car car batteries in serial will run it for a few hours
> on a charge.   48VDC is telco power, which is positive ground, negative
> 'juice'
>

Or two large diesel truck 24VDC batts. Don't you have those up there? Down
here I've seen ' em...

I've found a local seller of a 220V AC to 48VDC switching power supply,
very inexpensively because it's used (in working condition).
But it's only 480W...

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 3:07 PM, John R Pierce  wrote:

> a modern Intel 'Core' processor has 2-3 times the bang per Ghz per
> core.
>

Keep in mind I'm not running any benchmarks and that I've got this kit from
the street for $0.
Even if I spend $45 on it to make it work, it'd be faster than a RasPi. ;-)

Those old Xeon's will NOT support 64bit virtualization.
>
I don't care as I have my AMD Opteron with AMD-V for that ;)


> They use
> buffered DDR2 ECC dram, with a max of 8GB per blade.
>

But good enough for a single CentOS and Apache... instance... :)


> The mezzenaine
> board are NOT PCI-E, they are proprietary, and they support HP
> 361426-B21 2Gbps Fiberchannel Host Bus Adapters.
>

Thanks for the heads up wrt the above!. Finally some hard data.

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[John R Pierce]

On 4/11/2014 11:05 AM, Fernando Cassia wrote:
> ...and the 48V power.

4 large healthy car car batteries in serial will run it for a few hours 
on a charge.   48VDC is telco power, which is positive ground, negative 
'juice'


-- 
john r pierce  37N 122W
somewhere on the middle of the left coast

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[John R Pierce]

On 4/11/2014 8:21 AM, Fernando Cassia wrote:
> Each of the two blades has its own riser board with 3 Broadcom Gigabit
> Ethernet chips.
> But there are no ethernet sockets in the blade itself. It seems the
> ethernet signals go out of the back of the blade through the propietary
> connector and then into an array of PC-ILO female sockets on the back

the bladeservers I've seen, the bladechassis has a pair of managed 
ethernet switch modules in it, this is where all your network ports 
terminate.   the ILO stuff is just for remote console, NOT for your main 
networking.

those processors in those g3 blades are virtually the same as a pair of 
P4, each blade has 1 or 2 of one of these...

 Dual-Core Intel Xeon processor 2.8 GHZ/800MHz - 4MB
 Single-Core Intel Xeon processor 3.8 GHz/800MHz - 2MB
 Single-Core Intel Xeon processor 3.4 GHz/800MHz - 2MB
 Single-Core Intel Xeon processor 3.2 GHz/800MHz - 2MB
 Single-Core Intel Xeon processor 3.0 GHz/800MHz - 2MB (Low Voltage)
 Single-Core Intel Xeon processor 3.6 GHz/800MHz - 1MB
 Single-Core Intel Xeon processor 3.4 GHz/800MHz - 1MB
 Single-Core Intel Xeon processor 3.2 GHz/800MHz - 1MB
 Single-Core Intel Xeon processor 2.8 GHz - 1MB (Low-Voltage)

a modern Intel 'Core' processor has 2-3 times the bang per Ghz per 
core.   Those old Xeon's will NOT support 64bit virtualization. They use 
buffered DDR2 ECC dram, with a max of 8GB per blade.  The mezzenaine 
board are NOT PCI-E, they are proprietary, and they support HP 
361426-B21 2Gbps Fiberchannel Host Bus Adapters.



-- 
john r pierce  37N 122W
somewhere on the middle of the left coast

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 2:54 PM, John R Pierce  wrote:

> thats 3000 watts each.


Just like my oil-filled radiator heaters...
http://goo.gl/mO9Rzo

btw: found the CPU inside the blades are
380632-B21: (1) Intel® Xeon™ 3.0GHz standard (up to 2 supported)

http://h10010.www1.hp.com/wwpc/id/en/un/WF06a/18-21-21-21-300078-402958.html?dnr=2
https://h10057.www1.hp.com/ecomcat/hpcatalog/specs/provisioner/99/347957-B21.htm

But I guess that's a maximum. Two SCSI HDDs and two 3Ghz Xeons...

Hmmm the more I think of this, the more it feels like winning the dumpster
diving jackpot ;)
If it wasn't for its bloody SCSI HDD interface

...and the 48V power.

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

John R Pierce wrote:
> On 4/11/2014 10:37 AM, Fernando Cassia wrote:
>> "48V DC. 62.5 AMPS max per shelf. Dual circuits (A+B) for redundancy"
>
> thats 3000 watts each.
>
Right, but since he's only got two blades, I'd guess about a third, so
about like a microwave.

  mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 2:09 PM,  wrote:
>
>> >> lmao ;-) You mean like 141W peak consumption, while his toaster needs
>> >> 2200W?
>>
>> You think that's all the one blade, with support and h/d etc will need?
>>
> Don´t fight guys, please. :))

Hey, he's the one who's using a casting furnace for toast!
>
> I´ve found more info, I only had to read the sticker on the back of the
> enclosure. It reads
> "48V DC. 62.5 AMPS max per shelf. Dual circuits (A+B) for redundancy"

Um, er, if it takes six blades, that's 48v*10A, which, wattage-wise, is
480W or so, and so less than your microwave. But the amperage worries me a
bit.
>
> The dual male plugs marked "POWER CIRCUIT A" and "POWER CIRCUIT B" means
> exactly that. The Beast has two independent 48V DC imputs, for redundancy.
>
> But the positive and negative on each of the two not marked AT ALL and it
> seems to me that the male round plugs protuding are totally reversible
> (!?), so there´s a big possibility of frying everything if I get polarity
> backwards...
>
> Oh, Dear God of HP blades, we invoke you...
> Maybe on the BSD lists they´d have a clue?.

Hmmm... I'd try some HP lists.

   mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[John R Pierce]

On 4/11/2014 10:37 AM, Fernando Cassia wrote:
> "48V DC. 62.5 AMPS max per shelf. Dual circuits (A+B) for redundancy"

thats 3000 watts each.



-- 
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 2:17 PM, Richer, Mark (CIV) wrote:

> Are you in the US? I have a place in New York state that I *just*
> discovered a couple weeks ago, to my (and several users and their
> managers) joy: FrozenPC.com, who will *make* custom
> cables, and they're
> *very* reasonable and fast. (...)an off-the-shelf PCIe power cable is
> $8-$9 USD... and these *custom* cables, they quoted me $14.99 USD. I said
> they were reasonable
>

Excellent info, thanks a bunch Mark!.

FC
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act
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 2:09 PM,  wrote:

> >> lmao ;-) You mean like 141W peak consumption, while his toaster needs
> >> 2200W?
>
> You think that's all the one blade, with support and h/d etc will need?
>

Don´t fight guys, please. :))

I´ve found more info, I only had to read the sticker on the back of the
enclosure. It reads
"48V DC. 62.5 AMPS max per shelf. Dual circuits (A+B) for redundancy"

The dual male plugs marked "POWER CIRCUIT A" and "POWER CIRCUIT B" means
exactly that. The Beast has two independent 48V DC imputs, for redundancy.

But the positive and negative on each of the two not marked AT ALL and it
seems to me that the male round plugs protuding are totally reversible
(!?), so there´s a big possibility of frying everything if I get polarity
backwards...

Oh, Dear God of HP blades, we invoke you...
Maybe on the BSD lists they´d have a clue?.

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Richer, Mark (CIV) wrote:
>
> Do you mean this URL instead?

> http://frozencpu.com

> In Rochester NY?

I did correct myself in a later post, but yes, they're the folks.

  mark


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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Richer, Mark (CIV)]

Do you mean this URL instead?

http://frozencpu.com

In Rochester NY?

MARK H RICHER, MS CS
NPS-NCR Digital Forensics Lab IT Manager
Computer Science Department
Naval Postgraduate School - National Capital Region (NCR)
900 N Glebe Rd, Rm 5-182, Arlington, VA 22203
571.858.3254 (o) 571.303.9498 
(m)mhric...@nps.edu

On Apr 11, 2014, at 11:13, "m.r...@5-cent.us" 
mailto:m.r...@5-cent.us>> wrote:

Fernando Cassia wrote:
On Fri, Apr 11, 2014 at 11:48 AM, mailto:m.r...@5-cent.us>> 
wrote:

Oh, right - um, the obvious question (once I thought about it): can you
actually plug this thing in at home, or is it going to pop the breaker
when it tries to draw more current than the breaker's designed for?

I don't have no 48V DC power supply yet.

I think you misunderstood me: this suckers gonna draw a LOT of watts. Your
home house wiring may not carry enough current per circuit breaker to run
it.

By Googling I've found that there's an adapter cable I can buy to get
standard VGA/Ethernet/USB ports out of each blade.
http://www.amazon.com/HP-Crossover-Connection-Proliant-Enclosures/dp/B007P6R4Y2

But sadly there´s a missing cable that interconnects the PC-ILO female
sockets at the enclosure with some interconnect backplane (at first I
thought those were Ethernet but no, there is s a management socket for
every blade, where you can connect the above cables...).

Are you in the US? I have a place in New York state that I *just*
discovered a couple weeks ago, to my (and several users and their
managers) joy: FrozenPC.com, who will *make* custom 
cables, and they're
*very* reasonable and fast. I was looking for what should have been a
"standard PCIe splitter or Y power cord - we needed two for a couple of
Tesla cards on riser cards in a Dell R720 server... except all three
needed to be male, not one female, and almost no one makes that. I got the
quote, and we've ordered them... an off-the-shelf PCIe power cable is
$8-$9 USD... and these *custom* cables, they quoted me $14.99 USD. I said
they were reasonable

I *really* like talking up companies who know what they're doing, and do
it without the high-priced spread. 

I feel like I´m polluting this list. I´ve googled but couldn´t find any
specific mailing lists for HP blades, or even blades in general... I´m
sure there´s corporate sysadmins familiar with this stuff somewhere...

We've got several blade systems here. I'm not a fan of them: they sell
them with "they're so easy to upgrade", so you buy and use them for a few
years, and, oh, gee, the new ones don't use the old backplane connector,
but we'll be happy to sell you a whole new system

mark "and let's not forget the special connector that goes on the front
 of the HP SL230S that you *must* have to plug in a monitor"

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 11:51 AM, Rainer Duffner
> wrote:
>
>> If you have no budget, blades are the worst to work with ;-)
>
> I'm beginning to realize that. ;-).
> But think about it, if I can get it to work (even with no HDD and over the
> network booting) that'd be a fun weekend project.

Weekend project, um, yeah, after you buy all the extra parts, like that
cable set

Around '08, I bought an HO scale model steam locomotive kit, maybe 35
years old, "partly assembled". Then I spent at least half again as much
buying the missing parts. Then I started work I did finish it,
eventually, and it looks *marvelous*.

I've also said that I had *way* more "fun" (for certain values of "fun")
than I'd planned on. I also say "I've done that, I don't *EVER* have to do
it again".

mark, remembering too many times carefully shaking the rug, and
finding
the marker "jewels" (too small for a tweezers) in the
dust

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Christian Freund wrote:
> I think you misunderstood me: this suckers gonna draw a LOT of watts. Your
> home house wiring may not carry enough current per circuit breaker to run
> it.
>> lmao ;-) You mean like 141W peak consumption, while his toaster needs
>> 2200W?

You think that's all the one blade, with support and h/d etc will need?

2.2KW for a toaster?! I've never seen one of those - what are you
toasting, or is that a burnout furnace for lost-wax casting?

mark

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Re: [CentOS] biosdevname

[Steve Clark]

On 04/11/2014 11:39 AM, Phil Wyett wrote:
> On Fri, 2014-04-11 at 11:28 -0400, Steve Clark wrote:
>> On 04/11/2014 11:21 AM, Steve Clark wrote:
>>> On 03/20/2014 12:04 PM, Steve Clark wrote:
 Hello,

 Anybody else run into problems with biosdevname .0.5..0-2 changing names
 from p2p1 to em1 when upgrading from biosdevname 0.4.1-3?

 Darn!
 I thought biosdevname was to keep the names the same!!


>>> Update - I filed a bug report and got this response:
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1078974
>>>
>>> Fabian Deutsch  changed:
>>>
>>>   What|Removed |Added
>>> 
>>> Status|NEW |CLOSED
>>> CC| |fdeut...@redhat.com
>>> Resolution|--- |DUPLICATE
>>>Last Closed||2014-04-11 08:51:05
>>>
>>>
>>>
>>> --- Comment #2 from Fabian Deutsch  ---
>>>
>>>
>>> *** This bug has been marked as a duplicate of bug 1058170 ***
>>>
>>> Which is OK, but when I try to view the bug 1058170 I get
>>>
>> I guess I can't send an image - but it said:
>> *You are not authorized to access bug 1058170.*
>> even if I am logged into bugzilla.
>>> even after logging in. What up with that!!!
>>>
>>>
>>
> I can view the report without issue via link:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1058170
>
> The only comment i.e. #1 says:
>
> Fabian Deutsch 2014-01-27 02:13:59 EST
>
> Cloned this to biosdevname because it the device names changed between
> 6.4 and 6.5.
>
>
> Regards
>
> Phil
I had already sent an Email to Fabian - I guess he fixed the permissions.

Thanks

>
>
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Re: [CentOS] biosdevname

[Phil Wyett]

On Fri, 2014-04-11 at 16:39 +0100, Phil Wyett wrote:
> On Fri, 2014-04-11 at 11:28 -0400, Steve Clark wrote:
> > On 04/11/2014 11:21 AM, Steve Clark wrote:
> > > On 03/20/2014 12:04 PM, Steve Clark wrote:
> > >> Hello,
> > >>
> > >> Anybody else run into problems with biosdevname .0.5..0-2 changing names
> > >> from p2p1 to em1 when upgrading from biosdevname 0.4.1-3?
> > >>
> > >> Darn!
> > >> I thought biosdevname was to keep the names the same!!
> > >>
> > >>
> > > Update - I filed a bug report and got this response:
> > >
> > > https://bugzilla.redhat.com/show_bug.cgi?id=1078974
> > >
> > > Fabian Deutsch  changed:
> > >
> > >  What|Removed |Added
> > > 
> > >Status|NEW |CLOSED
> > >CC| |fdeut...@redhat.com
> > >Resolution|--- |DUPLICATE
> > >   Last Closed||2014-04-11 08:51:05
> > >
> > >
> > >
> > > --- Comment #2 from Fabian Deutsch  ---
> > >
> > >
> > > *** This bug has been marked as a duplicate of bug 1058170 ***
> > >
> > > Which is OK, but when I try to view the bug 1058170 I get
> > >
> > I guess I can't send an image - but it said:
> > *You are not authorized to access bug 1058170.*
> > even if I am logged into bugzilla.
> > >
> > > even after logging in. What up with that!!!
> > >
> > >
> > 
> > 
> 
> I can view the report without issue via link:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1058170
> 
> The only comment i.e. #1 says:
> 
> Fabian Deutsch 2014-01-27 02:13:59 EST
> 
> Cloned this to biosdevname because it the device names changed between
> 6.4 and 6.5.
> 
> 
> Regards
> 
> Phil
> 

On the other hand, I am not allowed to view the report the above was
cloned from:

You are not authorized to access bug #1034164

Regards

Phil

-- 

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{
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Leigh GNU Linux User Group (http://leigh.lug.org.uk)
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Re: [CentOS] biosdevname

[Phil Wyett]

On Fri, 2014-04-11 at 11:28 -0400, Steve Clark wrote:
> On 04/11/2014 11:21 AM, Steve Clark wrote:
> > On 03/20/2014 12:04 PM, Steve Clark wrote:
> >> Hello,
> >>
> >> Anybody else run into problems with biosdevname .0.5..0-2 changing names
> >> from p2p1 to em1 when upgrading from biosdevname 0.4.1-3?
> >>
> >> Darn!
> >> I thought biosdevname was to keep the names the same!!
> >>
> >>
> > Update - I filed a bug report and got this response:
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=1078974
> >
> > Fabian Deutsch  changed:
> >
> >  What|Removed |Added
> > 
> >Status|NEW |CLOSED
> >CC| |fdeut...@redhat.com
> >Resolution|--- |DUPLICATE
> >   Last Closed||2014-04-11 08:51:05
> >
> >
> >
> > --- Comment #2 from Fabian Deutsch  ---
> >
> >
> > *** This bug has been marked as a duplicate of bug 1058170 ***
> >
> > Which is OK, but when I try to view the bug 1058170 I get
> >
> I guess I can't send an image - but it said:
> *You are not authorized to access bug 1058170.*
> even if I am logged into bugzilla.
> >
> > even after logging in. What up with that!!!
> >
> >
> 
> 

I can view the report without issue via link:

https://bugzilla.redhat.com/show_bug.cgi?id=1058170

The only comment i.e. #1 says:

Fabian Deutsch 2014-01-27 02:13:59 EST

Cloned this to biosdevname because it the device names changed between
6.4 and 6.5.


Regards

Phil

-- 

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{
GNU Linux User and Developer
Leigh GNU Linux User Group (http://leigh.lug.org.uk)
IRC: philwyett
Twitter: philwyett and leigh_lug
}


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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:51 AM, Rainer Duffner wrote:

> If you have no budget, blades are the worst to work with ;-)


I'm beginning to realize that. ;-).
But think about it, if I can get it to work (even with no HDD and over the
network booting) that'd be a fun weekend project.

FC
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Re: [CentOS] biosdevname

[Steve Clark]

On 04/11/2014 11:21 AM, Steve Clark wrote:
> On 03/20/2014 12:04 PM, Steve Clark wrote:
>> Hello,
>>
>> Anybody else run into problems with biosdevname .0.5..0-2 changing names
>> from p2p1 to em1 when upgrading from biosdevname 0.4.1-3?
>>
>> Darn!
>> I thought biosdevname was to keep the names the same!!
>>
>>
> Update - I filed a bug report and got this response:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1078974
>
> Fabian Deutsch  changed:
>
>  What|Removed |Added
> 
>Status|NEW |CLOSED
>CC| |fdeut...@redhat.com
>Resolution|--- |DUPLICATE
>   Last Closed||2014-04-11 08:51:05
>
>
>
> --- Comment #2 from Fabian Deutsch  ---
>
>
> *** This bug has been marked as a duplicate of bug 1058170 ***
>
> Which is OK, but when I try to view the bug 1058170 I get
>
I guess I can't send an image - but it said:
*You are not authorized to access bug 1058170.*
even if I am logged into bugzilla.
>
> even after logging in. What up with that!!!
>
>


-- 
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Phone: 813-579-3200
Fax: 813-882-0209
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 12:21 PM, Christian Freund  wrote:

> > lmao ;-) You mean like 141W peak consumption, while his toaster needs
> 2200W?


Maybe he was thinking of a rack enclosure full of blades. I forgot to say
that the enclosure can fit eight blades, the enclosure only had two. The
rest are dummy placeholders aka empty tin can blades. (which, btw, I think
are great for fitting a lot of RasPi(s) ;-).

FC
-- 
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:51 AM, Rainer Duffner wrote:

> What about networking?
>
> They either have "shared" networking (AFAIK) or there needs to be a
> module the lets you connect the blades to a switch...
>

Each of the two blades has its own riser board with 3 Broadcom Gigabit
Ethernet chips.
But there are no ethernet sockets in the blade itself. It seems the
ethernet signals go out of the back of the blade through the propietary
connector and then into an array of PC-ILO female sockets on the back

See this http://goo.gl/RfnH5E
FC
-- 
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act
Durante épocas de Engaño Universal, decir la verdad se convierte en un Acto
Revolucionario
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Christian Freund]

I think you misunderstood me: this suckers gonna draw a LOT of watts. Your 
home house wiring may not carry enough current per circuit breaker to run it.
> lmao ;-) You mean like 141W peak consumption, while his toaster needs 2200W?
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Re: [CentOS] biosdevname

[Steve Clark]

On 03/20/2014 12:04 PM, Steve Clark wrote:
> Hello,
>
> Anybody else run into problems with biosdevname .0.5..0-2 changing names
> from p2p1 to em1 when upgrading from biosdevname 0.4.1-3?
>
> Darn!
> I thought biosdevname was to keep the names the same!!
>
>
Update - I filed a bug report and got this response:

https://bugzilla.redhat.com/show_bug.cgi?id=1078974

Fabian Deutsch  changed:

What|Removed |Added

  Status|NEW |CLOSED
  CC| |fdeut...@redhat.com
  Resolution|--- |DUPLICATE
 Last Closed||2014-04-11 08:51:05



--- Comment #2 from Fabian Deutsch  ---


*** This bug has been marked as a duplicate of bug 1058170 ***

Which is OK, but when I try to view the bug 1058170 I get



even after logging in. What up with that!!!


-- 
Stephen Clark
*NetWolves Managed Services, LLC.*
Director of Technology
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.cl...@netwolves.com
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 12:13 PM,  wrote:

> I think you misunderstood me: this suckers gonna draw a LOT of watts. Your
> home house wiring may not carry enough current per circuit breaker to run
> it.
>

How many watts? You mean this thing (a single blade) eats more than 1000
watts?
I can procure one 800-W 48V DC switching power supply locally for a few $.

Perhaps I didn't describe it properly. What I picked up is the FULL
ENCLOSURE with only TWO Xeon blades.
The rest are fitted with I could only describe as "dummy blades" that are
empty tin cases with a front plastic handle. I guess those are used as
placeholders for the rest of the blades that you can eventually install in
the enclosure...

btw: I'm down at the Southern end of South America... .AR more precisely.
FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 11:48 AM,  wrote:
>
>> Oh, right - um, the obvious question (once I thought about it): can you
>> actually plug this thing in at home, or is it going to pop the breaker
>> when it tries to draw more current than the breaker's designed for?
>>
> I don't have no 48V DC power supply yet.

I think you misunderstood me: this suckers gonna draw a LOT of watts. Your
home house wiring may not carry enough current per circuit breaker to run
it.
>
> By Googling I've found that there's an adapter cable I can buy to get
> standard VGA/Ethernet/USB ports out of each blade.
> http://www.amazon.com/HP-Crossover-Connection-Proliant-Enclosures/dp/B007P6R4Y2
>
> But sadly there´s a missing cable that interconnects the PC-ILO female
> sockets at the enclosure with some interconnect backplane (at first I
> thought those were Ethernet but no, there is s a management socket for
> every blade, where you can connect the above cables...).

Are you in the US? I have a place in New York state that I *just*
discovered a couple weeks ago, to my (and several users and their
managers) joy: FrozenPC.com, who will *make* custom cables, and they're
*very* reasonable and fast. I was looking for what should have been a
"standard PCIe splitter or Y power cord - we needed two for a couple of
Tesla cards on riser cards in a Dell R720 server... except all three
needed to be male, not one female, and almost no one makes that. I got the
quote, and we've ordered them... an off-the-shelf PCIe power cable is
$8-$9 USD... and these *custom* cables, they quoted me $14.99 USD. I said
they were reasonable

I *really* like talking up companies who know what they're doing, and do
it without the high-priced spread. 
>
> I feel like I´m polluting this list. I´ve googled but couldn´t find any
> specific mailing lists for HP blades, or even blades in general... I´m
> sure there´s corporate sysadmins familiar with this stuff somewhere...

We've got several blade systems here. I'm not a fan of them: they sell
them with "they're so easy to upgrade", so you buy and use them for a few
years, and, oh, gee, the new ones don't use the old backplane connector,
but we'll be happy to sell you a whole new system

 mark "and let's not forget the special connector that goes on the front
  of the HP SL230S that you *must* have to plug in a monitor"

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:48 AM,  wrote:

> Oh, right - um, the obvious question (once I thought about it): can you
> actually plug this thing in at home, or is it going to pop the breaker
> when it tries to draw more current than the breaker's designed for?
>

I don't have no 48V DC power supply yet.

By Googling I've found that there's an adapter cable I can buy to get
standard VGA/Ethernet/USB ports out of each blade.
http://www.amazon.com/HP-Crossover-Connection-Proliant-Enclosures/dp/B007P6R4Y2

But sadly there´s a missing cable that interconnects the PC-ILO female
sockets at the enclosure with some interconnect backplane (at first I
thought those were Ethernet but no, there is s a management socket for
every blade, where you can connect the above cables...).

I feel like I´m polluting this list. I´ve googled but couldn´t find any
specific mailing lists for HP blades, or even blades in general... I´m sure
there´s corporate sysadmins familiar with this stuff somewhere...

FC

-- 
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act
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Rainer Duffner]

Am Fri, 11 Apr 2014 11:40:30 -0300
schrieb Fernando Cassia :

> On Fri, Apr 11, 2014 at 11:28 AM,  wrote:
> 
> > Again, you could hit eBay for a power supply. But all the servers,
> > including blades, that I ever worked with were 120v or 220V (ok,
> > this is the US). Is the psu in the box dead?
> >
> 
> There's no PSU in the box. I've got the enclosure as well! It's one
> of these
> http://www.harddrivesdirect.com/product_info.php?products_id=142183
> 
> In the back all the blades are connected to an interconnect power
> regulator board that goes to two large round prongs the kind used in
> 20 AMP 220/240 V AC plugs. But right now I'm 99% sure right now that
> this works with 48VDC. The blades have tiny power regulator boards
> next to the (proprietary?) blade power connector...  and on the
> internal side of such connector the markings say "48V" for the white
> wire and "0V" for the black wire.



What about networking?

They either have "shared" networking (AFAIK) or there needs to be a
module the lets you connect the blades to a switch...

If you have no budget, blades are the worst to work with ;-)
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Oh, right - um, the obvious question (once I thought about it): can you
actually plug this thing in at home, or is it going to pop the breaker
when it tries to draw more current than the breaker's designed for?

   mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:38 AM,  wrote:

> It could have been tossed because it was old... but I'd wonder if it was
> tossed because either the m/b or the CPU failed.
>

the guy who was throwing it into a dumpster bin when I walked by clearly
knew something about servers, but didn't have much idea about what he was
throwing out. He sounded like a fresh sysadmin. He told me "I have another
like this that we might throw out, we can't get disks for them, and we're
buying a new server anyway so..."

FC
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 11:28 AM,  wrote:
>
>> Again, you could hit eBay for a power supply. But all the servers,
>> including blades, that I ever worked with were 120v or 220V (ok, this is
>> the US). Is the psu in the box dead?
>>
>
> There's no PSU in the box. I've got the enclosure as well! It's one of
> these
> http://www.harddrivesdirect.com/product_info.php?products_id=142183
>
> In the back all the blades are connected to an interconnect power
> regulator
> board that goes to two large round prongs the kind used in
> 20 AMP 220/240 V AC plugs. But right now I'm 99% sure right now that this
> works with 48VDC. The blades have tiny power regulator boards next to the
> (proprietary?) blade power connector...  and on the internal side of such
> connector the markings say "48V" for the white wire and "0V" for the black
> wire.
>
http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c00375484-3%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1397227350520.876444892.199480143>

Hope that helps

mark

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:38 AM,  wrote:

> Another thought: *carefully* examine the m/b. Techie friends have talked
> at length about capacitors burning out.
>

It's in mint condition not even too much dust on the blade fans...
The caps are all OK as well...

That's why I picked up in the first place. Would hate to see it sold as
metal junk and torn to pieces with a large sledgehammer.

FC
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[CentOS] Fwd, from upstream: Heartbleed Toolkit | Secure, Detect, & Repair

[m . roth]

Subject: Heartbleed Toolkit | Secure, Detect, & Repair
Date: Thu, 10 Apr 2014 18:12:16 -0400
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 11:28 AM,  wrote:

> Again, you could hit eBay for a power supply. But all the servers,
> including blades, that I ever worked with were 120v or 220V (ok, this is
> the US). Is the psu in the box dead?
>

There's no PSU in the box. I've got the enclosure as well! It's one of these
http://www.harddrivesdirect.com/product_info.php?products_id=142183

In the back all the blades are connected to an interconnect power regulator
board that goes to two large round prongs the kind used in
20 AMP 220/240 V AC plugs. But right now I'm 99% sure right now that this
works with 48VDC. The blades have tiny power regulator boards next to the
(proprietary?) blade power connector...  and on the internal side of such
connector the markings say "48V" for the white wire and "0V" for the black
wire.

FC

FC
-- 
During times of Universal Deceit, telling the truth becomes a revolutionary
act
Durante épocas de Engaño Universal, decir la verdad se convierte en un Acto
Revolucionario
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Christian Freund wrote:
> Hello Fernando,
>
> a "blade"-server has the idea to save space and share resources of the
> fitting enclosure, like SAN(or only SAN-switch), Network-Switch and
> Power-Supply.
>
> I didn't know that it is a "play-out-hack-project" to get an ancient
> junk-blade running without its enclosure. In that case you better isolate
> the board from the casing and somehow rivet it into one of your
> mini-towers. ;-) CentOS will run fine on that.

Oh. Urk. You need it inside something, and a lot of it is in the slot that
the blade plugs into. I take it there was no enclosure in the dumpster?

For that matter, do you have any idea if it's worth spending the time on?
It could have been tossed because it was old... but I'd wonder if it was
tossed because either the m/b or the CPU failed. Memory's not a big deal,
but

Another thought: *carefully* examine the m/b. Techie friends have talked
at length about capacitors burning out.

You also need to figure out if it will run not in a case. Cooling is a
*REAL* issue - you have to have a really good airflow over the CPU and
DIMMs is there a shroud in there, to channel the airflow?

   mark
   mark


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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[m . roth]

Fernando Cassia wrote:
> On Fri, Apr 11, 2014 at 6:25 AM, Christian Freund  wrote:
>
> Yes, I figured that because of the HDD technology. I wasn´t sure of
> the 7 years or 5 years but I figured it was close to that timeframe.
> But you know, I´m typing this on a dual-core AMD Opteron purchased in
> 2008 so... old ancient hardware is the name of the game for me. ;)

I hate to say it, but that dual-core Opteron may be as powerful, or more
so, than the blade. But (I missed the beginning of this thread) have you
opened it up? It's *possible* that there might be a SATA connector on the
m/b. Certainly, we have servers from '08 or so that use SATA.

And drives - you can pick up "small" drives - 400G and under - fairly
cheaply, though 1 TB wouldn't be that expensive.

> I think I´ve found a solution: there´s a daughtercard that apparently

Daughtercard, or riser? Riser might hold 2 expansion slots.

> includes a Mini-PCIe slot. In this, I figure I could add a half-height
> card with USB 3.0 and/or SATA controller. If the blade BIOS will

You might need "low profile", but you can find them. Since you're doing
this on your own, you can use places that, say, I can't, like eBay.

> recognize it and allow it to boot, that remains to be seen. This

That should be in the BIOS options.

> So, is there a mailing list other than CentOS where I could find
> people knowledgeable about the internals of these blades? Right now my
> top priority is finding if I can hack a 48V DC power supply to the odd
> (proprietary? or de-facto blade standard?) connector at the back of
> the blade. I don´t want to pollute this list more with
> hardware-related messages.

Again, you could hit eBay for a power supply. But all the servers,
including blades, that I ever worked with were 120v or 220V (ok, this is
the US). Is the psu in the box dead?

 mark


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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Christian Freund]

Hello Fernando,

a "blade"-server has the idea to save space and share resources of the fitting 
enclosure, like SAN(or only SAN-switch), Network-Switch and Power-Supply. 

I didn't know that it is a "play-out-hack-project" to get an ancient junk-blade 
running without its enclosure. In that case you better isolate the board from 
the casing and somehow rivet it into one of your mini-towers. ;-) CentOS will 
run fine on that.

Feel free to personally email me (especially when you got that thing working). 
Sounds funny. 

mit freundlichen Grüßen
Christian Freund
---
Christian Freund - fre...@wrz.de

-Ursprüngliche Nachricht-
Von: centos-boun...@centos.org [mailto:centos-boun...@centos.org] Im Auftrag 
von Fernando Cassia
Gesendet: Freitag, 11. April 2014 14:52
An: CentOS mailing list
Betreff: Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

On Fri, Apr 11, 2014 at 6:25 AM, Christian Freund  wrote:
> Hello Fernando,
>
> This drive-technology was replaced 7 years ago and the cpu's are that old as 
> well.

Yes, I figured that because of the HDD technology. I wasn´t sure of the 7 years 
or 5 years but I figured it was close to that timeframe.
But you know, I´m typing this on a dual-core AMD Opteron purchased in
2008 so... old ancient hardware is the name of the game for me. ;)

> Better buy some 1HE Servers with an actual i3 and 500GB SATA-HDD for less 
> than the price of an old LVD-UW-SCSI drive. With these old blades you just 
> have excessive power-consumption, heat, low performance.

Yep, I agree with you that buying a SCSI HDD is a big no-no. Since my current 
budget is zero, and I´ve picked up these blades from a dumpster, buying a new 
blade is not an alternative, because I never a had a budget to begin with... 
I´m just trying to get this to work just for the heck of it and see if I can 
turn this "gift" into a CentOS server, plus if I can make it to work it will be 
nice to have a spare system to run some stuff isolated from my main server.

I think I´ve found a solution: there´s a daughtercard that apparently includes 
a Mini-PCIe slot. In this, I figure I could add a half-height card with USB 3.0 
and/or SATA controller. If the blade BIOS will recognize it and allow it to 
boot, that remains to be seen. This hardware is (or was) enterprise grade and 
is way out of my league.
I´ve only built AMD Opteron servers myself, but in the PC tower form factor. 
It´s the first time I´m looking at a blade from the inside.

So, is there a mailing list other than CentOS where I could find people 
knowledgeable about the internals of these blades? Right now my top priority is 
finding if I can hack a 48V DC power supply to the odd (proprietary? or 
de-facto blade standard?) connector at the back of the blade. I don´t want to 
pollute this list more with hardware-related messages.

Thanks a bunch for replying!
FC
--
During times of Universal Deceit, telling the truth becomes a revolutionary act
- George Orwell
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Fernando Cassia]

On Fri, Apr 11, 2014 at 6:25 AM, Christian Freund  wrote:
> Hello Fernando,
>
> This drive-technology was replaced 7 years ago and the cpu's are that old as 
> well.

Yes, I figured that because of the HDD technology. I wasn´t sure of
the 7 years or 5 years but I figured it was close to that timeframe.
But you know, I´m typing this on a dual-core AMD Opteron purchased in
2008 so... old ancient hardware is the name of the game for me. ;)

> Better buy some 1HE Servers with an actual i3 and 500GB SATA-HDD for less 
> than the price of an old LVD-UW-SCSI drive. With these old blades you just 
> have excessive power-consumption, heat, low performance.

Yep, I agree with you that buying a SCSI HDD is a big no-no. Since my
current budget is zero, and I´ve picked up these blades from a
dumpster, buying a new blade is not an alternative, because I never a
had a budget to begin with... I´m just trying to get this to work just
for the heck of it and see if I can turn this "gift" into a CentOS
server, plus if I can make it to work it will be nice to have a spare
system to run some stuff isolated from my main server.

I think I´ve found a solution: there´s a daughtercard that apparently
includes a Mini-PCIe slot. In this, I figure I could add a half-height
card with USB 3.0 and/or SATA controller. If the blade BIOS will
recognize it and allow it to boot, that remains to be seen. This
hardware is (or was) enterprise grade and is way out of my league.
I´ve only built AMD Opteron servers myself, but in the PC tower form
factor. It´s the first time I´m looking at a blade from the inside.

So, is there a mailing list other than CentOS where I could find
people knowledgeable about the internals of these blades? Right now my
top priority is finding if I can hack a 48V DC power supply to the odd
(proprietary? or de-facto blade standard?) connector at the back of
the blade. I don´t want to pollute this list more with
hardware-related messages.

Thanks a bunch for replying!
FC
-- 
During times of Universal Deceit, telling the truth becomes a revolutionary act
- George Orwell
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Christian Freund]

Hello Fernando,

This drive-technology was replaced 7 years ago and the cpu's are that old as 
well.

Better buy some 1HE Servers with an actual i3 and 500GB SATA-HDD for less than 
the price of an old LVD-UW-SCSI drive. With these old blades you just have 
excessive power-consumption, heat, low performance. 
We had hundreds of these old drives from storages and DMZ-servers with R1, but 
because of security agreements they were all shreddered. I am afraid most 
people that used a lot of such expensive disks have some "keep your disk" 
agreement and destroy them.

You can always boot your system from a stick and mount your root-fs from 
storage. That is a standard procedure for many virtualization-setups and 
DMZ-proxy/fastcgi.

mit freundlichen Grüßen
Christian Freund
---
Christian Freund - fre...@wrz.de

-Ursprüngliche Nachricht-
Von: centos-boun...@centos.org [mailto:centos-boun...@centos.org] Im Auftrag 
von Fernando Cassia
Gesendet: Freitag, 11. April 2014 04:10
An: CentOS mailing list
Betreff: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

Hi there.

I got myself a pair of old Intel Xeon blades, which I plan to repurpose with 
CentOS.
The model is : HP bl20p-g3 server blade

Manual
http://h18004.www1.hp.com/products/quickspecs/12322_ca/12322_ca.pdf

Now, the main problem with this hardware is that LVD UW SCSI HDDs are hard to 
find and hella expensive if you find em (and of reduced capacity).
Any of you know:

1. If there's any third party maker of any daughtercard offering SATA ports? 
The main board of the system has daughtercard sockets allowing for instance SFP 
ports http://en.wikipedia.org/wiki/Small_form-factor_pluggable_transceiver
Seems to me that there'd be a small but interesting niche for this kind of 
adapter.

2. If it's possible to use BootP for booting off a network drive?
I know there are some UWSCSI to SATA adapter daughtercards but those sell for 
$250 which is way over my budget.

So, if you had one of these blades but not any UWSCSI HDDs what would you do?

Thanks in advance for any pointer. This hardware is too good to back to the 
dumpster where I got mines from...
FC
--
During times of Universal Deceit, telling the truth becomes a revolutionary act 
Durante épocas de Engaño Universal, decir la verdad se convierte en un Acto 
Revolucionario
- George Orwell
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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

[Christian Freund]

Hello Fernando,

This drive-technology was replaced 7 years ago and the cpu's are that old as 
well.

Better buy some 1HE Servers with an actual i3 and 500GB SATA-HDD for less than 
the price of an old LVD-UW-SCSI drive. With these old blades you just have 
excessive power-consumption, heat, low performance. 
We had hundreds of these old drives from storages and DMZ-servers with R1, but 
because of security agreements they were all shreddered. I am afraid most 
people that used a lot of such expensive disks have some "keep your disk" 
agreement and destroy them.

You can always boot your system from a stick and mount your root-fs from 
storage. That is a standard procedure for many virtualization-setups and 
DMZ-proxy/fastcgi.

mit freundlichen Grüßen
Christian Freund
---
Christian Freund - fre...@wrz.de

-Ursprüngliche Nachricht-
Von: centos-boun...@centos.org [mailto:centos-boun...@centos.org] Im Auftrag 
von Fernando Cassia
Gesendet: Freitag, 11. April 2014 04:10
An: CentOS mailing list
Betreff: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS

Hi there.

I got myself a pair of old Intel Xeon blades, which I plan to repurpose with 
CentOS.
The model is : HP bl20p-g3 server blade

Manual
http://h18004.www1.hp.com/products/quickspecs/12322_ca/12322_ca.pdf

Now, the main problem with this hardware is that LVD UW SCSI HDDs are hard to 
find and hella expensive if you find em (and of reduced capacity).
Any of you know:

1. If there's any third party maker of any daughtercard offering SATA ports? 
The main board of the system has daughtercard sockets allowing for instance SFP 
ports http://en.wikipedia.org/wiki/Small_form-factor_pluggable_transceiver
Seems to me that there'd be a small but interesting niche for this kind of 
adapter.

2. If it's possible to use BootP for booting off a network drive?
I know there are some UWSCSI to SATA adapter daughtercards but those sell for 
$250 which is way over my budget.

So, if you had one of these blades but not any UWSCSI HDDs what would you do?

Thanks in advance for any pointer. This hardware is too good to back to the 
dumpster where I got mines from...
FC
--
During times of Universal Deceit, telling the truth becomes a revolutionary act 
Durante épocas de Engaño Universal, decir la verdad se convierte en un Acto 
Revolucionario
- George Orwell
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Re: [CentOS] [CentOS-announce] CVE-2014-0160 CentOS 6 openssl heartbleed workaround

[Tony Mountifield]

In article <1483a20e-66b7-4ecc-8c14-34de4b24b...@gmail.com>,
Markus Falb  wrote:
> 
> > No vulnerability on the
> > server can expose a private client certificate, only a vulnerability on
> > the client can.
> 
> With malicious server I did not meant one that was affected
> by heartbleed but a server which is run by bad people that want to exploit
> vulnerable clients.
> 
> If it's easy to write a malicious client to read the server's ram, it's maybe 
> easy to
> write a malicious server that can read the client's ram? Does heartbleed work
> in both directions?
> 
> Assume that the client uses a vulnerable openssl, and it connects to a 
> malicious 
> server, can the server read the ram of the client?

https://reverseheartbleed.com/

Cheers
Tony
-- 
Tony Mountifield
Work: t...@softins.co.uk - http://www.softins.co.uk
Play: t...@mountifield.org - http://tony.mountifield.org
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