Re: [zfs-discuss] How to find poor performing disks

Running "iostat -nxce 1", I saw write sizes alternate between two raidz groups in the same pool. At one time, drives on cotroller 1 have larger writes (3-10 times) than ones on controller2: extended device statistics errors --- r/sw/s

[zfs-discuss] How are you supposed to remove faulted spares from pools?

We have a situation where all of the spares in a set of pools have gone into a faulted state and now, apparently, we can't remove them or otherwise de-fault them. I'm confidant that the underlying disks are fine, but ZFS seems quite unwilling to do anything with the spares situation. (The specifi

Re: [zfs-discuss] Poor iSCSI performance [SEC=PERSONAL]

All fixed now ... Backup has been running for maybe a minute or two and has backed up over 1GB. Thanks guys... Here is the complete command set I used... Creating the ZFS iSCSI target using COMSTAR. 1. DO NOT use "ZFS set shareiscsi=on ..." 2. MAKE SURE your zpool is upgraded. Run "zpool

Re: [zfs-discuss] Poor iSCSI performance [SEC=PERSONAL]

Cool - just found the problem. I had to upgrade the zpool using upgrade zpool storagepool onwards... -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/z

Re: [zfs-discuss] Poor iSCSI performance [SEC=PERSONAL]

No unfortunately the type does not fix it !! Still stuck !! -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] How to find poor performing disks

Maybe you can run a Dtrace probe using Chime? http://blogs.sun.com/observatory/entry/chime Initial Traces -> Device IO -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mail

Re: [zfs-discuss] Using consumer drives in a zraid2

On Aug 26, 2009, at 1:17 PM, thomas wrote: Hi Richard, So you have to wait for the sd (or other) driver to timeout the request. By default, this is on the order of minutes. Meanwhile, ZFS is patiently awaiting a status on the request. For enterprise class drives, there is a limited number of

Re: [zfs-discuss] problem with zfs

Hum i know the recommended and the update patches bundles according to the readme Patch 139555-08 is the kernel patch associated with the Solaris 10 5/09 release (Solaris 10 Update 7). so i believe i'm up to date i understand i'm a bit vague but i cannot provide any Zpool or zfs output until i

Re: [zfs-discuss] How to find poor performing disks

Also you may wish to look at the output of 'iostat -xnce 1' as well. You can post those to the list if you have a specific problem. You want to be looking for error counts increasing and specifically 'asvc_t' for the service times on the disks. I higher number for asvc_t may help to isolate poo

Re: [zfs-discuss] problem with zfs

serge goyette wrote: actually i did apply the latest recommended patches Recommended patches and upgrade clusters are different by the way. 10_Recommended != Upgrade Cluster that. Upgrade cluster will upgrade the system to a effectively the Solaris Release that the upgrade cluster is minu

Re: [zfs-discuss] Using consumer drives in a zraid2

Hi Richard, > So you have to wait for the sd (or other) driver to > timeout the request. By > default, this is on the order of minutes. Meanwhile, > ZFS is patiently awaiting a status on the request. For > enterprise class drives, there is a limited number > of retries on the disk before it repor

Re: [zfs-discuss] problem with zfs

actually i did apply the latest recommended patches SunOS VL-MO-ZMR01 5.10 Generic_139555-08 sun4v sparc SUNW,SPARC-Enterprise-T5120 but still perhaps you are not doing much import - export because when i do not do, i do not experience much problem but when doing it, outch ... a reboot will so

Re: [zfs-discuss] problem with zfs

The latest official Solaris 10 is actually 05/09. There are update patch bundles available on Sunsolve for free download that will take you to 05/09. It may well be worth applying these to see if they remedy the problem for you. They certainly allow you to bring ZFS up to version 10 from recolle

Re: [zfs-discuss] problem with zfs

for release sorry i meant Solaris 10 10/08 s10s_u6wos_07b SPARC Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms. Assembled 27 October 2008 -- This message posted from opensolaris.org __

Re: [zfs-discuss] How to find poor performing disks

You can try: zpool iostat pool_name -v 1 This will show you IO on each vdev at one second intervals. Perhaps you will see different IO behavior on any suspect drive. -Scott -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-

[zfs-discuss] problem with zfs

HI i'm using latest official solaris version 10/06 = patches and i'm getting problem after import of zpool sometime when i do mount -F zfs zpool/fs /mountpoint the command freeze and after this these is no way i can umount, destroy or anything all commands will hung even rebooting appe

Re: [zfs-discuss] Using consumer drives in a zraid2

On Wed, Aug 26, 2009 at 11:45 AM, Neal Pollack wrote: > > Luck or "design/usage" ? > Let me explain; I've also had many drives fail over the last 25 > years of working on computers, I.T., engineering, manufacturing, > and building my own PCs. > > Drive life can be directly affected by heat. Ma

Re: [zfs-discuss] Using consumer drives in a zraid2

On 08/25/09 10:46 PM, Tim Cook wrote: On Wed, Aug 26, 2009 at 12:22 AM, thomas > wrote: > I'll admit, I was cheap at first and my > fileserver right now is consumer drives.  You > can bet all my future purchases will be of the enterprise grade.  An

Re: [zfs-discuss] Using consumer drives in a zraid2

On Aug 25, 2009, at 9:38 PM, Tristan Ball wrote: What I’m worried about that time period where the pool is resilvering to the hot spare. For example: one half of a mirror has failed completely, and the mirror is being rebuilt onto the spare – if I get a read error from the remaining half of

Re: [zfs-discuss] Using consumer drives in a zraid2

But the real question is whether the "enterprise" drives would have avoided your problem. A. -- Adam Sherman +1.613.797.6819 On 2009-08-26, at 11:38, Troels Nørgaard Nielsen wrote: Hi Tim Cook. If I was building my own system again, I would prefer not to go with consumer harddrives. I h

Re: [zfs-discuss] Using consumer drives in a zraid2

>If I was building my own system again, I would prefer not to go with consumer >harddrives. >I had a raidz pool containing eight drives on a snv108 system, after >rebooting, four of >the eight drives was so broken they could not be seen by format, let alone the >zpool they >belonged to. > >This

[zfs-discuss] How to find poor performing disks

Hi, I'd appreciate if anyone can point me how to identify poor performing disks that might have dragged down performance of the pool. Also the system logged following error about one of the drives. Does it show the disk was having problem? Aug 17 13:45:56 zfs1.domain.com scsi: [ID 107833 kern.

Re: [zfs-discuss] Using consumer drives in a zraid2

Hi Tim Cook. If I was building my own system again, I would prefer not to go with consumer harddrives. I had a raidz pool containing eight drives on a snv108 system, after rebooting, four of the eight drives was so broken they could not be seen by format, let alone the zpool they belonged t

Re: [zfs-discuss] Using consumer drives in a zraid2

On Wed, 26 Aug 2009, Tristan Ball wrote: Complete disk failures are comparatively rare, while media or transient errors are far more common. As a media I/O or transient error on the It seems that this assumption is is not always the case. The expensive small-capacity SCSI/SAS enterprise driv

[zfs-discuss] Save modification to liveUSB

Hello all, I used liveUSB Creator to create a OpenSolaris LiveUSB. It's booting fast and easy. Mainly I'll need it to deploy packages (use it for jumpstart or so). I'll need to stick on a USB stick (16GB) and be able to reach it from the network. So far it is good, but now the issue is that if

Re: [zfs-discuss] Using consumer drives in a zraid2

I've been running ZFS under FreeBSD which is experimental, and i've had nothing but great luckso i guess it depeneds on a number of things. I went with FreeBSD because the hardware i had wasn't supported in solarisi expected problems but honestly, it's been rock solidit's survived all

Re: [zfs-discuss] zpool import hangs with indefinite writes

On 21.08.09 14:52, No Guarantees wrote: Every time I attempt to import a particular RAID-Z pool, my system hangs. Specifically, if I open up a gnome terminal and input '$ pfexec import zpool mypool', the process will never complete and I will return to the prompt. If I open up another terminal,

Re: [zfs-discuss] Using consumer drives in a zraid2

I'm using the Caviar Green drives in a 5-disk config. I downloaded the WDTLER utility and set all the drives to have a 7-second timeout, like the RE series have. WDTLER boots a small DOS app and you have to hit a key for each drive to adjust. So this might take time for a large raidz2. -- This

Re: [zfs-discuss] zpool import hangs with indefinite writes

Okay, I'm trying to do whatever I can NONDESTRUCTIVELY to fix this. I have almost 5TB of data that I can't afford to lose (baby pictures and videos, etc.). Since no one has seen this problem before, maybe someone can tell me what I need to do to make a backup of what I have now so I can try ot

[zfs-discuss] zpool scrub started resilver, not scrub

# cat /etc/release Solaris Express Community Edition snv_105 X86 Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms. Assembled 15 December 2008 # zpool status tww pool: tww st

Re: [zfs-discuss] Using consumer drives in a zraid2

Here's one horror story of mine - ZFS taking over 20 minutes to flag a drive as faulty, with the entire pool responding so slowly during those 20 minutes that it crashed six virtual machines running off the pool: http://www.opensolaris.org/jive/thread.jspa?messageID=369265񚉱 There are some perfor