similar to: Performance problem of ZFS ( Sol 10U2 )

Hello, Is it possible to non-destructively change RAID types in zpool while the data remains on-line? -J

The slides from my ZFS presentation at OSCON (as well as some additional information) are available at http://www.meangrape.com/ 2007/08/oscon-zfs/ Jay Edwards jay at meangrape.com http://www.meangrape.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070802/f2fa7b08/attachment.html>

Hi all, yesterday we had a drive failure on a fc-al jbod with 14 drives. Suddenly the zpool using that jbod stopped to respond to I/O requests and we get tons of the following messages on /var/adm/messages: Sep 3 15:20:10 fb2 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk at g20000004cfd81b9f (sd52): Sep 3 15:20:10 fb2 SCSI transport failed: reason ''timeout'':

Hi folks, Myself and a colleague are currently involved in a prototyping exercise to evaluate ZFS against our current filesystem. We are looking at the best way to arrange the disks in a 3510 storage array. We have been testing with the 12 disks on the 3510 exported as "nraid" logical devices. We then configured a single ZFS pool on top of this, using two raid-z arrays. We are getting

On Wed, Jul 28, 2010 at 9:01 AM, David Piepgrass <dpiepgrass at mentoreng.com> wrote: >> A LLVM JIT compiler for x86 under 1 MB? I doubt it is possible without >> a major rewriting of LLVM. > > Even with no optimizations? Drat. That means I can't use it. Why? I'd never checked, but I always assumed the LLVM JIT was much larger than 3.4 MB. For comparison: [rnk at

Hi all I have this server with some 50TB disk space. It originally had 30TB on WD Greens, was filled quite full, and another storage chassis was added. Now, space problem gone, fine, but what about speed? Three of the VDEVs are quite full, as indicated below. VDEV #3 (the one with the spare active) just spent some 72 hours resilvering a 2TB drive. Now, those green drives suck quite hard, but not

Hi, very periodically, we see I/O hangs for about 10 seconds, roughly once per minute. Each time this happens, the I/O rate simply drops to zero, and all disk access hangs; this is also very noticeable on the shell, for NFS clients etc. Everything else (networking, kernel, ?) seems to continue normally. Environment: FreeBSD 9.1R GENERIC on amd64, using ZFS, on a ARC1320 PCIe with 24x Seagate

I''ve been writing via tar to a pool some stuff from backup, around 500GB. Its taken quite a while as the tar is being read from NFS. My ZFS partition in this case is a RAIDZ 3-disk job using 3 400GB SATA drives (sil3124 card) Ever once in a while, a "df" stalls and during that time my io''s go flat, as in : capacity operations bandwidth pool

https://bugzilla.samba.org/show_bug.cgi?id=13317 --- Comment #6 from Rui DeSousa <rui.desousa at icloud.com> --- (In reply to Rui DeSousa from comment #5) It looks like no error is returned and result is a sparse file. I think a sync() would be required otherwise the file is truncated on close to meet the quota. [postgres at hades ~]$ df -h arch Filesystem Size Used

GPM Modula-2 and Oberon-2 Compilers File locations: ftp.fit.qut.edu.au:/pub/gpm ftp.psg.com:/pub/modula-2/gpm WEB Site: http://www.fit.qut.edu.au/CompSci/PLAS/GPM/ The Gardens Point Modula (GPM) compilers are an ongoing development project for the Programming Languages and Systems Group in the Faculty of Information Technology at the Queensland University of Technology.

Hi, I just had my Dell R610 reboot with a kernel panic when I threw a couple of zfs clone commands in the terminal at it. Now, after the system had rebooted zfs will not import my pool anylonger and instead the kernel will panic again. I have had the same symptom on my other host, for which this one is basically the backup, so this one is my last line if defense. I tried to run zdb -e

Hi, We have a storage server (HP DL360G5 + MSA20 (12 disks in RAID 6) on a SmartArray6400). 10 directories are exported through nfs to 10 clients (rsize=32768,wsize=32768,soft,intr,nosuid,proto=udp,vers=3). The server is apparently not doing much but... we have very high waiting IOs. dstat show very little activity, but high 'wai'... # dstat ----total-cpu-usage---- -dsk/total-

https://bugzilla.samba.org/show_bug.cgi?id=13317 Bug ID: 13317 Summary: rsync returns success when target filesystem is full Product: rsync Version: 3.1.2 Hardware: x64 OS: FreeBSD Status: NEW Severity: major Priority: P5 Component: core Assignee: wayned at samba.org

Running a zpool scrub on our production pool is showing a scrub rate of about 400K/s. (When this pool was first set up we saw rates in the MB/s range during a scrub). Both zpool iostat and an iostat -Xn show lots of idle disk times, no above average service times, no abnormally high busy percentages. Load on the box is .59. 8 x 3GHz, 32GB ram, 96 spindles arranged into raidz zdevs on OI 147.

Hello list, I discover strange behaviour of shaping traffic that i setup from Shorewall-4.0.2. I know that this is not Shorewall problem but may be somebody from list can help me or explain this situation. I have follow interfaces in 'tcdevices' files: #INTERFACE IN-BANDWITH OUT-BANDWIDTH # $EXT_IF 500kbit 248kbit $INT1_IF 500mbit

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Hi folks, The following are initial virtio-scsi + target vhost benchmark results using multiple target LUNs per vhost and multiple virtio PCI adapters to scale the total number of virtio-scsi LUNs into a single KVM guest. The test setup is currently using 4x SCSI LUNs per vhost WWPN, with 8x virtio PCI adapters for a total of 32x 500MB ramdisk LUNs into a single guest, along with each backend

Hi folks, The following are initial virtio-scsi + target vhost benchmark results using multiple target LUNs per vhost and multiple virtio PCI adapters to scale the total number of virtio-scsi LUNs into a single KVM guest. The test setup is currently using 4x SCSI LUNs per vhost WWPN, with 8x virtio PCI adapters for a total of 32x 500MB ramdisk LUNs into a single guest, along with each backend