m DVD/Jumpstart
you should see 2 disks and just do a ZFS 2 disk mirror for rpool.
Hope this helps...
- Robert Loper
-- Forwarded message --
From: Andrei Ghimus
To: zfs-discuss@opensolaris.org
Date: Mon, 30 Aug 2010 11:05:27 PDT
Subject: Re: [zfs-discuss] Terrible ZFS performance on a
I have the same problem you do, ZFS performance under Solaris 10 u8 is horrible.
When you say passthrough mode, do you mean non-RAID configuration?
And if so, could you tell me how you configured it?
The best I can manage is to configure each physical drive as a RAID 0 array
then export that as
> Before you do a dd test try first to do:
> echo zfs_vdev_max_pending/W0t1 | mdb -kw
I did actually try this about a month ago when I first made an attempt at
figuring this out. Changing the pending values did make some small difference,
but even the best was far, far short of acceptable perfo
> Is this minutes:seconds.millisecs ? if so, you're looking at 3-4MB/s ..
> I would say something is wrong.
Ack, you're right.
I was concentrating so much on the WTFOMG problem that I completely missed the
WTF problem.
In other news, with the Poweredge put into "SCSI" mode instead of "RAID" mod
Before you do a dd test try first to do:
echo zfs_vdev_max_pending/W0t1 | mdb -kw
and let us know if it helped or not.
iostat -xnz 1
output while you are doing dd would also help.
--
Robert Milkowski
http://milek.blogspot.com
___
zfs-discuss mail
I think the raid card is a re-branded LSI SCSI raid. I have LSI 21320-4x and
having same problem with ZFS.
Do you have BBU on the card? You may want to disable cache flush and zil and
see how it works. I tried passthrough and basically the result is same.
I gave up on tuning this card with ZFS
On 09 October, 2009 - Brandon Hume sent me these 2,0K bytes:
> I've got a mail machine here that I built using ZFS boot/root. It's
> been having some major I/O performance problems, which I posted once
> before... but that post seems to have disappeared.
>
> Now I've managed to obtain another id
I've got a mail machine here that I built using ZFS boot/root. It's been
having some major I/O performance problems, which I posted once before... but
that post seems to have disappeared.
Now I've managed to obtain another identical machine, and I've built it in the
same way as the original.
