On 10/28/11 00:04, Mark Wolek wrote:
Still kicking around this idea and didn’t see it
addressed in any of the threads before the forum closed.
If one made an all ssd pool, would a log/cache
drive just slow you down? Would zil slow you down? Thinking rotate
MLC drives w
On 10/28/11 07:04 PM, Mark Wolek wrote:
Still kicking around this idea and didn’t see it addressed in any of
the threads before the forum closed.
If one made an all ssd pool, would a log/cache drive just slow you
down? Would zil slow you down?
I would guess not, you would still be sprea
Still kicking around this idea and didn't see it addressed in any of the
threads before the forum closed.
If one made an all ssd pool, would a log/cache drive just slow you down? Would
zil slow you down? Thinking rotate MLC drives with sandforce controllers every
few years to avoid losing a d
On 28/10/2011, at 3:06 PM, Daniel Carosone wrote:
> On Thu, Oct 27, 2011 at 10:49:22AM +1100, afree...@mac.com wrote:
>> Hi all,
>>
>> I'm seeing some puzzling behaviour with my RAID-Z.
>>
>
> Indeed. Start with zdb -l on each of the disks to look at the labels in more
> detail.
>
> --
> Dan
On Thu, Oct 27, 2011 at 10:49:22AM +1100, afree...@mac.com wrote:
> Hi all,
>
> I'm seeing some puzzling behaviour with my RAID-Z.
>
Indeed. Start with zdb -l on each of the disks to look at the labels in more
detail.
--
Dan.
pgpRTwLfC9flo.pgp
Description: PGP signature
_
The system is freshly installed and the pools are newly created as well.
The tests have been repeated with new pools recreated with different disks of
the same model (Seagate ES.2).
On Oct 28, 2011, at 5:58 AM, Erik Forsberg wrote:
> Indeed. Just recently had very noticeable performance issues
Just to close out the discussion, I wasn't able to prove any issues with
ZFS. The files that were changed all seem to have plausible scenarios.
I've moved my external USB drive backups over to ZFS directly connected
to the file server and it's all working fine.
Thanks for everyone's help!
-
Indeed. Just recently had very noticeable performance issues
on a zfs pool that became 75% full. Fell of a cliff basically.
Didnt expect that until well above 80%. Now, this was Solaris 10u8
or somewhere around that. Deleted un-needed files back to 55% and
performance is excellent again.
>-- Origi
It occurs to me that your filesystems may not be in the same state.
That is, destroy both pools. Recreate them, and run the tests. This
will eliminate any possibility of allocation issues.
-Erik
On 10/27/2011 10:37 AM, weiliam.hong wrote:
Hi,
Thanks for the replies. In the beginning, I onl
Hi,
Thanks for the replies. In the beginning, I only had SAS drives
installed when I observed the behavior, the SATA drives were added later
for comparison and troubleshooting.
The slow behavior is observed only after 10-15mins of running dd where
the file size is about 15GB, then the throug
On Thu, October 27, 2011 11:32, Albert Shih wrote:
>> I also recommend LSI 9200-8E or new 9205-8E with the IT firmware based
>> on past experience
>
> Do you known if the LSI-9205-8E HBA or the LSI-9202-16E HBA work under
> FreBSD 9.0 ?
Check the man page for mpt(4):
http://www.freebsd.org/c
if you get rid of the HBA and log device, and run with ZIL
> disabled (if your work load is compatible with a disabled ZIL.)
By "get rid of the HBA" I assume you mean put in a battery-backed RAID
card instead?
-J
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Le 19/10/2011 à 19:23:26-0700, Rocky Shek a écrit
Hi.
Thanks for this information.
> I also recommend LSI 9200-8E or new 9205-8E with the IT firmware based on
> past experience
Do you known if the LSI-9205-8E HBA or the LSI-9202-16E HBA work under FreBSD
9.0 ?
Best regards.
Regards.
--
On 10/27/11 07:03 AM, Edward Ned Harvey wrote:
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
boun...@opensolaris.org] On Behalf Of weiliam.hong
3. All 4 drives are connected to a single HBA, so I assume the mpt_sas
driver
is used. Are SAS and SATA drives handled differently ?
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of weiliam.hong
>
> 3. All 4 drives are connected to a single HBA, so I assume the mpt_sas
driver
> is used. Are SAS and SATA drives handled differently ?
If they're all on the same HBA, they may
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