On Dec 1, 2007 7:15 AM, Vincent Fox <[EMAIL PROTECTED]> wrote:
> We will be using Cyrus to store mail on 2540 arrays.
>
> We have chosen to build 5-disk RAID-5 LUNs in 2 arrays which are both
> connected to same host, and mirror and stripe the LUNs. So a ZFS RAID-10 set
> composed of 4 LUNs. Mu
We will be using Cyrus to store mail on 2540 arrays.
We have chosen to build 5-disk RAID-5 LUNs in 2 arrays which are both connected
to same host, and mirror and stripe the LUNs. So a ZFS RAID-10 set composed of
4 LUNs. Multi-pathing also in use for redundancy.
My question is any guidance on
*bump*
just wanted to keep this into discussion. i think it could be important to zfs
if it could compress faster with a better compressratio.
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On Nov 30, 2007, at 2:47 AM, MP wrote:
>> I evaled one of these too. Worked great with ZFS.
>
> Was that with OpenSolaris and was that with or without the Intel
> RAID controller?
> Cheers.
Solaris 10 8/07, it was with the built-in RAID controller.
-john
_
Aaah, that makes sense :)
If it's just performance you're after for small writes, I wonder if you've
considered putting the ZIL on an NVRAM card? It looks like this can give
something like a 20x performance increase in some situations:
http://blogs.sun.com/perrin/entry/slog_blog_or_blogging_on
In addition to Brendan's advice about benchmarking, it would be a good idea to
use the newer Solaris release (Solaris 10 08/07), which has a lot of ZFS
improvements (performance and functional).
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I'm using the thumper as a secondary storage device and therefor am technically
only worried about capacity and performance. In regards to availability, if it
fails I should be okay as long as I don't also lose the primary storage during
the time it takes to recover the secondary [knock on wood]
> I evaled one of these too. Worked great with ZFS.
Was that with OpenSolaris and was that with or without the Intel RAID
controller?
Cheers.
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Joerg Schilling wrote:
> Al Hopper <[EMAIL PROTECTED]> wrote:
>
>> I've personally (and professionally) been bitten by all 3 above
>> scenarios - more than once! IMHO, SATA point-to-point serial links
>> are far more reliable than anything I could build with SCSI
>> technology.
>
> SCSI is (s
Al Hopper <[EMAIL PROTECTED]> wrote:
> I've personally (and professionally) been bitten by all 3 above
> scenarios - more than once! IMHO, SATA point-to-point serial links
> are far more reliable than anything I could build with SCSI
> technology.
SCSI is (since SCSI-3) a layered protocol and
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