Dear colleagues,
I have a DB server with ciss and a bunch of disks (8 SAS + 2 Intel SATA SSD).
However, this setup does not seem to support TRIM on SSDs:
kstat.zfs.misc.zio_trim.bytes: 0
kstat.zfs.misc.zio_trim.success: 0
kstat.zfs.misc.zio_trim.unsupported: 418
kstat.zfs.misc.zio_trim.failed:
- Original Message -
From: Dmitry Morozovsky ma...@rinet.ru
To: freebsd-stable@FreeBSD.org
Sent: Wednesday, June 05, 2013 11:00 PM
Subject: TRIM support through ciss
Dear colleagues,
I have a DB server with ciss and a bunch of disks (8 SAS + 2 Intel SATA SSD).
However, this setup
On Thu, Jun 06, 2013 at 02:00:36AM +0400, Dmitry Morozovsky wrote:
Dear colleagues,
I have a DB server with ciss and a bunch of disks (8 SAS + 2 Intel SATA SSD).
However, this setup does not seem to support TRIM on SSDs:
kstat.zfs.misc.zio_trim.bytes: 0
kstat.zfs.misc.zio_trim.success:
On Wed, 5 Jun 2013, Steven Hartland wrote:
For ZFS you really don't want to use a HW RAID, its much better
to just give ZFS the raw disks as you gain nice features like
self healing :)
I know this well, and use it for a dozen servers with regular SATA
(enterprrize-grade though, like WD RE4s)
On Wed, 5 Jun 2013, Jeremy Chadwick wrote:
[snip a bit]
I assume this is you running stable/9 with r251419 or newer (which just
got committed a few hours ago)?
Yes, sure, I missed to mention it explicitely.
I haven't looked at the code, but it is very, VERY important to remember
that you
- Original Message -
From: Dmitry Morozovsky ma...@rinet.ru
well, to be a bit more precise: SSDs are split to have mirrored ZIL and
splitted L2ARC, and SASes are mirrored in pairs:
root@briareus:/usr/src# zpool status
pool: br
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0
