Re: [SLUG] Adaptec RAID problems

2010-07-14 Thread Robert Barnett

Thanks for your persistence Ben,

I reduced the size of the array to a 2Gb RAID 1 and experienced the same 
problem.

I've worked out that I can load more recent firmware using a more recent 
version of Sun Common Array Manager. The firmware 
load failed in RHEL so I'll have to wait until Sun has sorted that out.

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Re: [SLUG] Adaptec RAID problems

2010-07-14 Thread Robert Barnett

Hi Nick,

Actually, I originally had 5x1Tb in a LVM group and that suited me fine. The 
HBA didn't support RAID for some reason. The only 
problem was that Fedora 11 udev tended to timeout when attempting to detect the 
individual disks. The only way to solve the 
problem was to plug in the SAS cable after the Fedora had booted and the 
detection was successful. Here is a post on fedora 
forum and entry in bugzilla:

http://forums.fedoraforum.org/showthread.php?t=243493highlight=J4200
https://bugzilla.redhat.com/show_bug.cgi?id=582094

We upgraded the HBA to one which supported RAID and I decided on Fedora 13 
(since Fedora 11 is now EOL).
In Fedora 13, udev doesn't appear to detect individual disks. I'm guessing that 
the default behaviour for the new Adaptec driver 
in this kernel is not to expose physical components of the arrays 
(expose_physicals=0). I can probably try to override the driver 
preference and see what the IO is like to individual disks.

Perhaps the problem will go away once I've installed the necessary firmware.

I'm very tempted to run a chroot Gentoo from within RedHat. I really need a 
recent version of linux for development purposes, 
but it needs to sit on a vendor supported OS. I brought up a chroot image as a 
way to distribute GEANT

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Re: [SLUG] Adaptec RAID problems

2010-07-13 Thread Robert Barnett


Hi, 

Thanks for the pointers.

Is it possible that the HBA driver loads the firmware onto the drives? I've 
tried the harddrive vendor (Hitachi), but they don't 
release firmware updates.

I reduced the size of the array to 4x2Tb RAID10 (4Tb redundant).
Perhaps I'll try a smaller size to see if I have the same problem.
The easiest way to replicate the problem is to run hdparm -t /dev/sda
I get about 400kB/s on the problem RAID.

The aacraid driver seems to mask single disks. AFAIK This prevents the driver 
timingout during bootup

I've removed all LVMs so I can use modprobe and rmmod to experiment with 
different module options without restarting.

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[SLUG] Adaptec RAID problems

2010-07-12 Thread Robert Barnett

Hi,

I am attempting to run Fedora 13 on a SunFire X4140 with an external Sun 
StorageTek enclosure with 7x2Tb disks. Fedora 
13 boots of a single internal SAS drive.

The HBA is an Adaptec AAC-RAID (rev 09). I have successfully created a RAID 
array using the adaptec BIOS. I have also 
successfully created a logical volume which is 7.99Tb.

I attempted to create a filsystem on the the 7x2Tb RAID array from Fedora 13 
but it didn't work. The computer hangs 
periodically and generates kernel warnings.

I suspected that it is an issue related to the Adaptec RAID driver, so I 
downloaded the supported drivers from Sun.

http://www.intel.com/support/go/sunraid.htm

The most recent drivers for the external HBA adapter as supplied by Sun are at 
the level aacraid_1.1.5_2463. I compiled 
these into the Fedora kernel today and recreated the filesystem, however, I had 
the same problem.

I have installed RedHat EL5 on another partition to help with diagnosing the 
problem.
I've rebooted into Redhat and created the filesystem using the same command. 
This seemed to run perfectly fine (however I 
stopped it early because it would take several hours to complete).
The baseline version of the Adaptec driver installed by Redhat EL5 is Adaptec 
aacraid driver 1.1-5[2437]-mh4

It appears that there are no hardware issues with the 7x2Tb array. I would 
prefer not to upgrade the firmware because it 
seemed to cause problems with RedHat EL5.

Is there anyone in Sydney who had experience with running Fedora on Sun/Oracle 
Hardware?

Thanks

Robbie.

Here are the Fedora 13 errors below.

Code:
[r...@petfire]#  mkfs.ext3 -L mars /dev/mapper/vg_mars-lv_mars
mke2fs 1.41.10 (10-Feb-2009)
Filesystem label=mars
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
536207360 inodes, 2144799744 blocks
107239987 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
65455 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
4096000, 7962624, 11239424, 2048, 23887872, 71663616, 78675968, 
10240, 214990848, 51200, 550731776, 644972544, 1934917632

Writing inode tables:   811/65455
Message from sysl...@localhost at Jul 13 12:15:46 ...
 kernel:Stack:

Message from sysl...@localhost at Jul 13 12:15:46 ...
 kernel:Call Trace:

Message from sysl...@localhost at Jul 13 12:15:46 ...
 kernel: IRQ 

Message from sysl...@localhost at Jul 13 12:15:46 ...
 kernel: EOI 

Message from sysl...@localhost at Jul 13 12:15:46 ...
 kernel:Code: e8 91 ed ff ff 85 c0 74 17 49 8b 84 24 60 01 00 00 89 58 44 49 8b 
84 24 60 01 00 00 44 89 68 2c 49 8b 84 24 
60 01 00 00 8b 58 44 83 fb ff 75 cb b8 01 00 00 00 5b 5b 41 5c 41 5d c9 c3 55 
48 89 
  817/65455
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[SLUG] IPv6 question

2009-03-03 Thread Robert Barnett


Just for fun, I'm setting up a FC10 machine with as an IPv6 router.
The tunnel device (tun0) is automatically created using a script (aiccu)
I want to allow other machines to use this box as a gateway, but I  
think I have the config wrong


1: lo: LOOPBACK,UP,LOWER_UP mtu 16436
inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever
2: eth0: BROADCAST,MULTICAST,UP,LOWER_UP mtu 1500 qlen 100
inet6 2001:1938:83:52::3/64 scope global
   valid_lft forever preferred_lft forever
inet6 fe80::20d:57ff:fd9b:4b24/64 scope link
   valid_lft forever preferred_lft forever
40: tun0: POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP mtu 1280 qlen 500
inet6 2001:1938:83:52::2/64 scope global
   valid_lft forever preferred_lft forever
inet6 fe80::1838:83:52:2/64 scope link
   valid_lft forever preferred_lft forever

2001:1938:83:52::/64 dev eth0  proto kernel  metric 256  mtu 1500  
advmss 1440 hoplimit 4294967295
2001:1938:83:52::/64 dev tun0  proto kernel  metric 256  mtu 1280  
advmss 1220 hoplimit 4294967295
fe80::/64 dev eth0  proto kernel  metric 256  mtu 1500 advmss 1440  
hoplimit 4294967295
fe80::/64 dev tun0  proto kernel  metric 256  mtu 1280 advmss 1220  
hoplimit 4294967295
default via 2001:1938:83:52::1 dev tun0  metric 1024  mtu 1280 advmss  
1220 hoplimit 4294967295


I have radvd running and everything works well on the LAN using the  
stateless addresses.


--

I've tried many combinations of a few things to solve the problem

turning off /etc/init.d/iptables

turning off /etc/init.d/ip6tables

sysctl -w net.ipv6.conf.default.forwarding=1

sysctl -w net.ipv6.conf.all.forwarding=1

Restricting prefix of tun0
#   /sbin/ip -6 addr del 2001:1938:83:52::2/64 dev tun0
#   /sbin/ip -6 addr add 2001:1938:83:52::2/126 dev tun0

Changing the global ip on eth0 to the same as tun0

Any thoughts?

Thanks

Robbie Barnett

rob...@barnett.id.au
0431864709
Skype Name: retsil42

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[SLUG] Fortress .... err Firewall Australia

2008-10-30 Thread Robert Barnett


I am really most concerned about all the side effects of filtering that we are yet to uncover.

For example:

If I hosted on a dynamic IP, although I have been assured that it is unlikely, how would I deal with the event that my IP has been blocked to other users? Could the federal government consider not blocking domestic addresses and actually enforce Australian law on our own turf? What if I ran a VPN on port 80? How do I even know that I'm on the blocked list?

What about lesser known sites such as the Internet WayBack machine? Would any objectionable material result in a blanket ban?


Robbie


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[SLUG] Keeping wife on linux

2008-10-30 Thread Robert Barnett


My wife and I have a shared computer at home, however, I seem to be facing a loosing battle for her experiences with linux to remain pleasant. I am running fedora core 9 with additional packages from the Livna repository

Some nuances:

* We've not been able to find a way to purchase songs from Yahoo or iTunes. I've tried foxy tunes and wine without much success. 
* We've had some difficulty with video codecs. Channel nine or ten is using a codec which includes advertisements but only works for Windows Media Player 10+.
* I've also played a few DVDs in MPlayer and other players and just get the "Downloading movies is stealing" on continuous repeat. 

Is there a distro which is more likely to work with proprietary codecs? Or am I just better to stick to FC or possibly Ubuntu and use 3rd party packages as i have been doing?

I've been toying with using vmware and running XP SP2, but I think that it would leave me with two systems to maintain rather than one. I may also have to buy a new machine (dual core) to meet the system requirements.

Any suggestions?

 
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[SLUG] Safe samba configuration

2008-07-24 Thread Robert Barnett
I use samba on a mixed OS network. We have several NAS devices and two
Fedora workstations which share drives using NAS.

I have configured the Fedora workstations to only announce on the local
subnet (/24) to prevent inadvertent connections from the wider organization.

I implement this by putting the following in smb.conf
remote announce = 10.9.136.0/24

I also set
local master = no
Because I figured that there were other computers more suited to being the
master browser (whatever that means)

Unfortunately I've been faced with some windows boxes spontaneously not able
to browse or connect to the network. It is occasional, but seemed to
decrease in occurance when I reduced the use of SMB shares.

I'm really keen to find a safe configuration for my SMB shares, but I'm
not sure where I would find how to do this. It's very difficult to diagnose
which configuration works better without months of investigation.

Any help would be greatly appreciated.

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[EMAIL PROTECTED]
0431864709
Skype Name: retsil42
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Re: [SLUG] SLUG January meeting video (Microsoft QA) is online

2008-03-23 Thread Robert Barnett


Thanks for putting the January meeting online on so promptly. For me,  
the material has sparked a few interesting conversations with friends  
in the industry.


I've noticed how MS folk tout their openness as though they have  
solved the interoperability problem in one fowl swoop. I wouldn't want  
to cause offence to the great people who work there, but in reality,  
they have only offered a very small window into Microsoft technology  
under the Open Specification Promise (OSP). Other companies such as  
Sun Microsystems have been put into a position that they must make  
some of their largest projects open source in order to have a hope of  
market share.


We live in very interesting times indeed...

Thanks,

Robbie
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Re: [SLUG] HFS+ support

2007-12-12 Thread Robert Barnett


I suspect that the cause is poor support for journalling. I created a  
separate HFS+ partition with journalling turned off. This time I  
didn't have to force rw mode, so I suspect it will be more stable.  
I'll post back here if it dies again.


Thanks

Robbie
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[SLUG] HFS+ support

2007-12-10 Thread Robert Barnett

Hello,

I've recently set up a Mac/Linux dual boot system. I mounted the HFS+ drive 
using the experimental HFS driver in read/write mode so I could share my user 
home between both operating systems. Unfortunately this corrupted my HFS file 
system today and I had lots of lively messages coming from the Linux kernel.

I was admittedly in a bit of a rush to get it going, but now I have the time to 
relfect on my mistakes. Would anyone recommend a way of running Mac/Linux dual 
boot? How would you share userspace files?

Thanks

Robbie
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[SLUG] RedHat at UOW

2005-08-19 Thread Robert Barnett
Hi,

I have a colleague from Uppsala University, Sweden. He uses ITK/VTK for
data processing and manipulation of Medical Images. He currently has a
post-doc position which is shared between UOW and a Sydney hospital.
He's informed me that UOW would not let him use his RedHat (Fedora Core
3) machine on the campus network because they only allow for approved
OSes to connect to the network.

Does anyone have any ideas about how to appeal this decision/policy? I
completed a postgrad course at UOW. In all my time there I never managed
to get any response from the IT department with regards to policy.

Regards,

Robbie

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