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From: zfs-discuss-boun...@opensolaris.org on behalf of Eric D.
Mudama
Sent: Wed 5/4/2011 12:55 PM
To: Adam Serediuk
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] Extremely Slow ZFS Performance
On Wed, May 4 at 12:21, Adam Serediuk wrote:
Both iostat and zpool iostat show
On Wed, May 4 at 12:21, Adam Serediuk wrote:
Both iostat and zpool iostat show very little to zero load on the devices even
while blocking.
Any suggestions on avenues of approach for troubleshooting?
is 'iostat -en' error free?
--
Eric D. Mudama
edmud...@bounceswoosh.org
iostat doesn't show any high service times and fsstat also shows low
throughput. Occasionally I can generate enough load that you do see some very
high asvc_t but when that occurs the pool is performing as expected. As a
precaution I just added two extra drives to the zpool incase zfs was
and the DDT no
longer fits in RAM? That would create a huge performance cliff.
-Original Message-
From: zfs-discuss-boun...@opensolaris.org on behalf of Eric D. Mudama
Sent: Wed 5/4/2011 12:55 PM
To: Adam Serediuk
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] Extremely Slow
performance
cliff.
-Original Message-
From: zfs-discuss-boun...@opensolaris.org on behalf of Eric D.
Mudama
Sent: Wed 5/4/2011 12:55 PM
To: Adam Serediuk
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] Extremely Slow ZFS Performance
On Wed, May 4 at 12:21, Adam Serediuk wrote
