On Thu, 23 May 2013 11:00:21 +0200
Albert Shih albert.s...@obspm.fr wrote:
Before I'm installing my server under 9.0 + ZFS I do some benchmarks with
ionice to compare
FreeBSD 9.0+ ZFS + 12 disk SATA 7200 rpm vs CentOS + H700 + 12 disk
SAS 15krpm
(Both are same Dell poweredge).
Le 17/05/2013 ? 20:03:30-0400, Paul Kraus a écrit
ZFS is stable, it is NOT as tuned as UFS just due to age. UFS in all of it's
various incarnations has been tuned far more than any filesystem has any
right to be. I spent many years managing Solaris system and I was truly
amazed at how
Le 18/05/2013 ? 09:02:15-0400, Paul Kraus a écrit
On May 18, 2013, at 3:21 AM, Ivailo Tanusheff
ivailo.tanush...@skrill.com wrote:
If you use HBA/JBOD then you will rely on the software RAID of the
ZFS system. Yes, this RAID is good, but unless you use SSD disks to
boost performance and
On May 23, 2013, at 4:53 AM, Albert Shih albert.s...@obspm.fr wrote:
Have you ever try to update a ZFS Pool on 9.0 to 9.1 ?
I recently upgraded my home server from 9.0 to 9.1, actually, I did exported my
data zpool (raidZ2), did a clean installation of 9.1, then imported my data
zpool.
On May 18, 2013, at 10:16 PM, kpn...@pobox.com wrote:
On Sat, May 18, 2013 at 01:29:58PM +, Ivailo Tanusheff wrote:
Not sure about your calculations, hope you trust them, but in my previous
company we have a 3-4 months period when a disk fails almost every day on 2
year old servers, so
.
Best regards,
Ivailo Tanusheff
-Original Message-
From: owner-freebsd-questi...@freebsd.org
[mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of b...@todoo.biz
Sent: Saturday, May 18, 2013 8:33 AM
To: Liste FreeBSD
Subject: Re: ZFS install on a partition
Le 18 mai 2013 à 06:49
Hi,
If you use HBA/JBOD then you will rely on the software RAID of the ZFS system.
Yes, this RAID is good, but unless you use SSD disks to boost performance and a
lot of RAM the hardware raid should be more reliable and mush faster.
I didn't get if you want to use the system to dual boot
named mypool issue:
zfs set copies=2 mypool
Best regards,
Ivailo Tanusheff
-Original Message-
From: b...@todoo.biz [mailto:b...@todoo.biz]
Sent: Saturday, May 18, 2013 10:46 AM
To: Ivailo Tanusheff
Subject: Re: ZFS install on a partition
Le 18 mai 2013 à 09:21, Ivailo Tanusheff
On May 18, 2013, at 3:21 AM, Ivailo Tanusheff ivailo.tanush...@skrill.com
wrote:
If you use HBA/JBOD then you will rely on the software RAID of the ZFS
system. Yes, this RAID is good, but unless you use SSD disks to boost
performance and a lot of RAM the hardware raid should be more
On May 18, 2013, at 12:49 AM, kpn...@pobox.com wrote:
On Fri, May 17, 2013 at 08:03:30PM -0400, Paul Kraus wrote:
On May 17, 2013, at 6:24 PM, b...@todoo.biz b...@todoo.biz wrote:
3. Should I avoid using ZFS since my system is not well tuned and It would
be asking for trouble to use ZFS in
-Original Message-
From: owner-freebsd-questi...@freebsd.org
[mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Paul Kraus
Sent: Saturday, May 18, 2013 4:02 PM
To: Ivailo Tanusheff
Cc: Liste FreeBSD
Subject: Re: ZFS install on a partition
On May 18, 2013, at 3:21 AM, Ivailo Tanusheff
Your hardware raid should be faster than ZFS raid. Don't use zfs raid
because there will be no benefit. You'll get the performance of
software raid using CPU time, along with lost space for already backed
up data.
ZFS should work fine. A lot of the tuning on the wiki page isn't needed
On May 17, 2013, at 6:24 PM, b...@todoo.biz b...@todoo.biz wrote:
I know I should install a system using HBA and JBOD configuration - but
unfortunately this is not an option for this server.
I ran many ZFS pools on top of hardware raid units, because that is what we
had. It works fine and
On 18 May 2013, at 01:15, Joshua Isom jri...@gmail.com wrote:
Your hardware raid should be faster than ZFS raid. Don't use zfs raid
because there will be no benefit.
Self healing much ?
I wouldn't dream of dropping it for a 20mb/s performance increase from a HW
controller.
What if the
Thanks for this documented answer.
Couple of comments though…
Le 18 mai 2013 à 02:03, Paul Kraus p...@kraus-haus.org a écrit :
On May 17, 2013, at 6:24 PM, b...@todoo.biz b...@todoo.biz wrote:
I know I should install a system using HBA and JBOD configuration - but
unfortunately this is
Le 18 mai 2013 à 06:49, kpn...@pobox.com a écrit :
On Fri, May 17, 2013 at 08:03:30PM -0400, Paul Kraus wrote:
On May 17, 2013, at 6:24 PM, b...@todoo.biz b...@todoo.biz wrote:
3. Should I avoid using ZFS since my system is not well tuned and It would
be asking for trouble to use ZFS in
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