Anton B. Rang wrote:
Careful here. If your workload is unpredictable, RAID 6 (and RAID 5)
for that matter will break down under highly randomized write loads.
Oh? What precisely do you mean by "break down"? RAID 5's write performance is
well-understood and it's used successfully in
Kyle McDonald wrote:
> Richard Elling wrote:
>
>> Nick wrote:
>>
>>
>>> I have been tasked with putting together a storage solution for use in a
>>> virtualization setup, serving NFS, CIFS, and iSCSI, over GigE. I've
>>> inherited a few components to work with:
>>>
>>> x86 dual cor
On Feb 5, 2008 9:52 PM, William Fretts-Saxton <[EMAIL PROTECTED]>
wrote:
> This may not be a ZFS issue, so please bear with me!
>
> I have 4 internal drives that I have striped/mirrored with ZFS and have an
> application server which is reading/writing to hundreds of thousands of
> files on it, th
> Careful here. If your workload is unpredictable, RAID 6 (and RAID 5)
> for that matter will break down under highly randomized write loads.
Oh? What precisely do you mean by "break down"? RAID 5's write performance is
well-understood and it's used successfully in many installations for rand
Richard Elling wrote:
> Nick wrote:
>
>> I have been tasked with putting together a storage solution for use in a
>> virtualization setup, serving NFS, CIFS, and iSCSI, over GigE. I've
>> inherited a few components to work with:
>>
>> x86 dual core server , 512MB LSI-ELP RAID card
>>
>
> On Feb 10, 2008 9:06
> AM, Jonathan Loran < href="mailto:[EMAIL PROTECTED]">[EMAIL PROTECTED]
> ley.edu> wrote: class="gmail_quote" style="border-left: 1px solid
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Hello William,
Thursday, February 7, 2008, 7:46:51 PM, you wrote:
WFS> -Setting zfs_nocacheflush, though got me drastically increased
WFS> throughput--client requests took, on average, less than 2 seconds each!
That's interesting - a bug in scsi driver for v40z?
--
Best regards,
Robert
Hello Nathan,
Thursday, February 7, 2008, 6:54:39 AM, you wrote:
NK> For kicks, I disabled the ZIL: zil_disable/W0t1, and that made not a
NK> pinch of difference. :)
Have you exported and them imported pool to get zil_disable into
effect?
--
Best regards,
Robert Milkowski
On Feb 10, 2008 9:06 AM, Jonathan Loran <[EMAIL PROTECTED]> wrote:
>
>
> Richard Elling wrote:
>
> Nick wrote:
>
>
> Using the RAID cards capability for RAID6 sounds attractive?
>
>
>
> Assuming the card works well with Solaris, this sounds like a
> reasonable solution.
>
>
>
> Careful her
The workload will be generated by a gaggle of virtual machines, most of which I
expect to be running the normal mix of Microsoft/Office type applications (of
which I expect MS-Exchange to be the most demanding).
I gather the LSI card allows you to dedicate the entire NVRAM cache to writes
shou
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