On 08/23/2011 06:42 PM, David Boreham wrote:
I took a look at Areca. The fan on the controller board is a big
warning signal for me (those fans are in my experience the single most
unreliable component ever used in computers).
I have one of their really early/cheap models here, purchased in ear
On Tue, Aug 23, 2011 at 4:42 PM, David Boreham wrote:
> On 8/22/2011 10:55 PM, Scott Marlowe wrote:
>>
>> If you're running linux and thus stuck with the command line on the
>> LSI, I'd recommend anything else. MegaRAID is the hardest RAID
>> control software to use I've ever seen. If you can sp
On 8/22/2011 10:55 PM, Scott Marlowe wrote:
If you're running linux and thus stuck with the command line on the
LSI, I'd recommend anything else. MegaRAID is the hardest RAID
control software to use I've ever seen. If you can spring for the
money, get the Areca 1680:
http://www.newegg.com/Produ
On August 22, 2011 09:55:33 PM Scott Marlowe wrote:
>
> If you're running linux and thus stuck with the command line on the
> LSI, I'd recommend anything else. MegaRAID is the hardest RAID
> control software to use I've ever seen. If you can spring for the
> money, get the Areca 1680:
> http://ww
On 8/23/2011 5:14 AM, Robert Schnabel wrote:
I'm by no means an expert but it seems to me if you're going to choose
between two 6 GB/s cards you may as well put SAS2 drives in. I have
two Adaptec 6445 cards in one of my boxes and several other Adaptec
series 5 controllers in others. They su
On 8/22/2011 9:42 PM, David Boreham wrote:
I'm buying a bunch of new machines (all will run an application that heavily
writes to PG). These machines will have 2 spindle groups in a RAID-1 config.
Drives will be either 15K SAS, or 10K SATA (I haven't decided if it is
better
to buy the faster dri
On Mon, Aug 22, 2011 at 8:42 PM, David Boreham wrote:
>
> I'm buying a bunch of new machines (all will run an application that heavily
> writes to PG). These machines will have 2 spindle groups in a RAID-1 config.
> Drives will be either 15K SAS, or 10K SATA (I haven't decided if it is
> better
>
I'm buying a bunch of new machines (all will run an application that heavily
writes to PG). These machines will have 2 spindle groups in a RAID-1 config.
Drives will be either 15K SAS, or 10K SATA (I haven't decided if it is
better
to buy the faster drives, or drives that are identical to the o
You say that like you don't mind having PCI in a server whose job is
to perform massive query over large data sets.
I am in my 4th week at a new job. Trying to figure what I am working
with.
LOOL, ok, hehe, not exactly the time to have a "let's change everything"
fit ;)
From what I
PFC wrote:
PCI limits you to 133 MB/s (theoretical), actual speed being
around 100-110 MB/s.
Many servers do have more than one bus. You have to process that data
too so its not going to be as much of a limit as you are suggesting. It
may be possible to stream a compressed data file to th
On May 12, 2008, at 11:24 PM, Francisco Reyes wrote:
Any PCI controller you have had good experience with?
How any other PCI-X/PCI-e controller that you have had good results?
The LSI controllers are top-notch, and always my first choice. They
have PCI-X and PCI-e versions.
--
Sent via
On May 12, 2008, at 10:04 PM, Francisco Reyes wrote:
Adaptec 2120 SCSI controller (64MB of cache).
The servers have mostly have 12 drives in RAID 10.
We are going to redo one machine to compare RAID 10 vs RAID 50.
Mostly to see if the perfomance is close, the space gain may be
usefull.
On Tue, May 13, 2008 at 8:00 AM, Francisco Reyes <[EMAIL PROTECTED]> wrote:
> PFC writes:
>
>
> >You say that like you don't mind having PCI in a server whose job
> is to perform massive query over large data sets.
> >
>
> I am in my 4th week at a new job. Trying to figure what I am worki
PFC writes:
You say that like you don't mind having PCI in a server whose job is to
perform massive query over large data sets.
I am in my 4th week at a new job. Trying to figure what I am working with.
From what I see I will likely get as much improvement from new hardware as
from re-doing
Will it pay to go to a controller with higher memory for existing
machines? The one machine I am about to redo has PCI which seems to
somewhat limit our options.
Urgh.
You say that like you don't mind having PCI in a server whose job is to
perform massive query over large data s
On Mon, May 12, 2008 at 8:04 PM, Francisco Reyes <[EMAIL PROTECTED]> wrote:
> Inheritted a number of servers and I am starting to look into the hardware.
>
> So far what I know from a few of the servers
> Redhat servers.
> 15K rpm disks, 12GB to 32GB of RAM.
> Adaptec 2120 SCSI controller (64MB of
On Mon, 12 May 2008, Francisco Reyes wrote:
We are going to redo one machine to compare RAID 10 vs RAID 50. Mostly to
see if the perfomance is close, the space gain may be usefull.
Good luck with that, you'll need it.
Will it pay to go to a controller with higher memory for existing
machine
Francisco Reyes wrote:
Joshua D. Drake writes:
Any PCI controller you have had good experience with?
I don't have any PCI test data.
How any other PCI-X/PCI-e controller that you have had good results?
http://www.commandprompt.com/blogs/joshua_drake/2008/04/is_that_performance_i_smell_ext
Chris Ruprecht wrote:
Joshua,
did you try to run the 345 on an IBM ServeRAID 6i?
No the only controllers I had at the time were the 2120 and the LSI on
board that is limited to RAID 1. I put the drives on the LSI in JBOD and
used Linux software raid.
The key identifier for me was using a s
Joshua,
did you try to run the 345 on an IBM ServeRAID 6i?
I have one in mine, but I never actually ran any speed test.
Do you have any benchmarks that I could run and compare?
best regards,
chris
--
chris ruprecht
database grunt and bit pusher extraordinaíre
On May 12, 2008, at 22:11, Josh
Joshua D. Drake writes:
Most likely you have a scsi onboard as well I am guessing.
Will check.
shouldn't bother with the 2120. My tests show it is a horrible
controller for random writes.
Thanks for the feedback..
Comparing software raid on an LSI onboard for an IBM 345 versus a 2120s
u
On Mon, 12 May 2008 22:04:03 -0400
Francisco Reyes <[EMAIL PROTECTED]> wrote:
> Inheritted a number of servers and I am starting to look into the
> hardware.
>
> So far what I know from a few of the servers
> Redhat servers.
> 15K rpm disks, 12GB to 32GB of RAM.
> Adaptec 2120 SCSI controller (64
Inheritted a number of servers and I am starting to look into the hardware.
So far what I know from a few of the servers
Redhat servers.
15K rpm disks, 12GB to 32GB of RAM.
Adaptec 2120 SCSI controller (64MB of cache).
The servers have mostly have 12 drives in RAID 10.
We are going to redo one m
On Thu, 23 Oct 2003, Alexander Priem wrote:
> I have been searching (www.lsil.com) for this megaraid_2 driver you
> mentioned.
>
> What kind of MegaRaid card does the Perc4/Di match? Elite1600? Elite1650?
>
> I picked Elite1600 and the latest driver I found was version 2.05.00. Is
> this one OK
I have been searching (www.lsil.com) for this megaraid_2 driver you
mentioned.
What kind of MegaRaid card does the Perc4/Di match? Elite1600? Elite1650?
I picked Elite1600 and the latest driver I found was version 2.05.00. Is
this one OK for RedHat 9? The README file present only mentions RedHat8
Heya
On Wed, 2003-10-22 at 01:13, Alexander Priem wrote:
> So I guess the PERC4/Di RAID controller is pretty good. It seems that
> RedHat9 supports it out-of-the-box (driver 1.18f), but I gather from the
> sites mentioned before that upgrading this driver to 1.18i would be
> better...
Actually up
So I guess the PERC4/Di RAID controller is pretty good. It seems that
RedHat9 supports it out-of-the-box (driver 1.18f), but I gather from the
sites mentioned before that upgrading this driver to 1.18i would be
better...
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On Tue, 2003-10-21 at 13:36, scott.marlowe wrote:
> On 21 Oct 2003, Will LaShell wrote:
>
> > On Tue, 2003-10-21 at 08:40, scott.marlowe wrote:
> >
> > > So that brings up my question, which is better, the Perc4 or Perc3
> > > controllers, and what's the difference between them? I find Dell's
On 21 Oct 2003, Will LaShell wrote:
> On Tue, 2003-10-21 at 08:40, scott.marlowe wrote:
>
> > So that brings up my question, which is better, the Perc4 or Perc3
> > controllers, and what's the difference between them? I find Dell's
> > tendency to hide other people's hardware behind their own
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