[zfs-discuss] one ZIL SLOG per zpool?

2010-08-12 Thread Chris Twa
I have three zpools on a server and want to add a mirrored pair of ssd's for the ZIL. Can the same pair of SSDs be used for the ZIL of all three zpools or is it one ZIL SLOG device per zpool? -- This message posted from opensolaris.org ___

[zfs-discuss] File system ownership details of ZFS file system.

2010-08-12 Thread Ramesh Babu
Hi, I am looking for the file system ownership information of ZFS file system. I would like to know the amount of space used and number of files owned by each user in ZFS file system. I could get the user space using 'ZFS userspace' command. However i didn't find any switch to get Number of files

Re: [zfs-discuss] How to obtain vdev information for a zpool?

2010-08-12 Thread Peter Taps
Hi James, Appreciate your help. Regards, Peter -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

[zfs-discuss] Optimizing performance on a ZFS-based NAS

2010-08-12 Thread valrh...@gmail.com
Thanks to the help from many people on this board, I finally got my OpenSolaris-based NAS box up and running. I have a Dell T410 with a Xeon E5504 2.0 GHz (Nehalem) quad-core processor, 8 GB of RAM. I have six 2TB Hitachi Deskstar (HD32000IDK/7K) SATA drives, set up as stripes across three

[zfs-discuss] Degraded Pool, Spontaneous Reboots

2010-08-12 Thread Michael Anderson
Hello, I've been getting warnings that my zfs pool is degraded. At first it was complaining about a few corrupt files, which were listed as hex numbers instead of filenames, i.e. VOL1:0x0 After a scrub, a couple of the filenames appeared - turns out they were in snapshots I don't really

Re: [zfs-discuss] one ZIL SLOG per zpool?

2010-08-12 Thread Darren J Moffat
On 12/08/2010 07:27, Chris Twa wrote: I have three zpools on a server and want to add a mirrored pair of ssd's for the ZIL. Can the same pair of SSDs be used for the ZIL of all three zpools or is it one ZIL SLOG device per zpool? Only if you partition it up and give slices to the pools,

[zfs-discuss] Unable to import ZFS pool after disk issues

2010-08-12 Thread Peter Van Buren
I have a 8 disk raidz2 pool (ZP02) that I am having some issues with. The pool is using WD20EADS 2TB drives connected to a Intel SASUC8I controller (LSI 1068E chip). The pool was originally created when the machine was running SXDE 1/08. I later installed OpenSolaris 2009.06 and imported the

Re: [zfs-discuss] Raidz - what is stored in parity?

2010-08-12 Thread Arne Schwabe
Am 11.08.10 00:40, schrieb Peter Taps: Hi, I am going through understanding the fundamentals of raidz. From the man pages, a raidz configuration of P disks and N parity provides (P-N)*X storage space where X is the size of the disk. For example, if I have 3 disks of 10G each and I

Re: [zfs-discuss] zfs replace problems please please help

2010-08-12 Thread Seth Keith
-Original Message- From: Mark J Musante [mailto:mark.musa...@oracle.com] Sent: Wednesday, August 11, 2010 5:03 AM To: Seth Keith Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] zfs replace problems please please help On Tue, 10 Aug 2010, seth keith wrote: # zpool

Re: [zfs-discuss] Raidz - what is stored in parity?

2010-08-12 Thread Adam Leventhal
In my case, it gives an error that I need at least 11 disks (which I don't) but the point is that raidz parity does not seem to be limited to 3. Is this not true? RAID-Z is limited to 3 parity disks. The error message is giving you false hope and that's a bug. If you had plugged in 11 disks

Re: [zfs-discuss] Backup zpool

2010-08-12 Thread Edward Ned Harvey
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Simone Caldana I would like to backup my main zpool (originally called data) inside an equally originally named backupzpool, which will also holds other Basically I'd like to end up with

Re: [zfs-discuss] ZFS and VMware

2010-08-12 Thread Paul Kraus
On Wed, Aug 11, 2010 at 6:15 PM, Saxon, Will will.sa...@sage.com wrote: It really depends on your VM system, what you plan on doing with VMs and how you plan to do it. I have the vSphere Enterprise product and I am using the DRS feature, so VMs are vmotioned around my cluster all

Re: [zfs-discuss] Degraded Pool, Spontaneous Reboots

2010-08-12 Thread Edward Ned Harvey
I am guessing you're experiencing cpu or memory failure. Or motherboard, or disk controller. -Original Message- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Michael Anderson Sent: Thursday, August 12, 2010 3:46 AM To:

Re: [zfs-discuss] ZFS and VMware

2010-08-12 Thread Eff Norwood
We are doing NFS in VMWare 4.0U2 production, 50K users using OpenSolaris SNV_134 on SuperMicro boxes with SATA drives. Yes, I am crazy. Our experience has been that iSCSI for ESXi 4.x is fast and works well with minimal fussing until there is a problem. When that problem happens, getting to

Re: [zfs-discuss] one ZIL SLOG per zpool?

2010-08-12 Thread Edward Ned Harvey
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Chris Twa I have three zpools on a server and want to add a mirrored pair of ssd's for the ZIL. Can the same pair of SSDs be used for the ZIL of all three zpools or is it one ZIL SLOG

Re: [zfs-discuss] Backup zpool

2010-08-12 Thread Marty Scholes
Hello, I would like to backup my main zpool (originally called data) inside an equally originally named backupzpool, which will also holds other kinds of backups. Basically I'd like to end up with backup/data backup/data/dataset1 backup/data/dataset2 backup/otherthings/dataset1

Re: [zfs-discuss] Backup zpool

2010-08-12 Thread Simone Caldana
Il giorno 12/ago/2010, alle ore 15.10, Marty Scholes ha scritto: Say the word and I'll send you a copy. pretty please :) thanks (meanwhile, I created the top dataset on the backup pool, set compression to gzip-2, removed any local compression setting on the source dataset children and I am

[zfs-discuss] ZFS data from snv_b134 to fbsd

2010-08-12 Thread Dick Hoogendijk
I want to transfer a lot of ZFS data from an old OpenSolaris ZFS mirror (v22) to a new FreeBSD-8.1 ZFs mirror (v14). If I boot off the OpenSolaris boot CD and import both mirrors will the copying from v22 ZFS to v14 ZFS be harmless? I'm not sure if this is teh right mailinglist for this

Re: [zfs-discuss] ZFS and VMware

2010-08-12 Thread Richard Jahnel
We are using zfs backed fibre targets for ESXi 4.1 and previously 4.0 and have had good performance with no issues. The fibre LUNS were formated with vmfs by the ESXi boxes. SQLIO benchmarks from guest system running on fibre attacted ESXi host. File Size MBThreads Read/Write Duration

Re: [zfs-discuss] one ZIL SLOG per zpool?

2010-08-12 Thread Roy Sigurd Karlsbakk
People are always tempted to put more than one log onto a SSD because Hey, the system could never use more than 8G, but I've got a 32G drive! What a waste of money! Which has some truth in it. But the line of thought you should have is Hey, the system will do its best to max out the

Re: [zfs-discuss] one ZIL SLOG per zpool?

2010-08-12 Thread Chris Twa
Thank you everyone for your answers. Cost is a factor, but the main obstacle is that the chassis will only support four SSDs (and that's with using the spare 5.25 bay for a 4x2.5 hotswap bay). My plan now is to buy the ssd's and do extensive testing. I want to focus my performance efforts

[zfs-discuss] User level transactional API

2010-08-12 Thread Jason
Has any thought been given to exposing some sort of transactional API for ZFS at the user level (even if just consolidation private)? Just recently, it would seem a poorly timed unscheduled poweroff while NWAM was attempting to update nsswitch.conf left me with a 0 byte nsswitch.conf (which when

Re: [zfs-discuss] User level transactional API

2010-08-12 Thread Norm Jacobs
For single file updates, this is commonly solved by writing data to a temp file and using rename(2) to move it in place when it's ready. -Norm On 08/12/10 04:51 PM, Jason wrote: Has any thought been given to exposing some sort of transactional API for ZFS at the user level (even if just

Re: [zfs-discuss] User level transactional API

2010-08-12 Thread Nicolas Williams
On Thu, Aug 12, 2010 at 07:48:10PM -0500, Norm Jacobs wrote: For single file updates, this is commonly solved by writing data to a temp file and using rename(2) to move it in place when it's ready. For anything more complicated you need... a more complicated approach. Note that transactional

Re: [zfs-discuss] Backup zpool

2010-08-12 Thread Marty Scholes
Script attached. Cheers, Marty -- This message posted from opensolaris.org zfs_sync Description: Binary data ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] New Supermicro SAS/SATA controller: AOC-USAS2-L8e in SOHO NAS and HD HT

2010-08-12 Thread valrh...@gmail.com
Has anyone bought one of these cards recently? It seems to list for around $170 at various places, which seems like quite a decent deal. But no well-known reputable vendor I know seems to sell these, and I want to be able to have someone backing the sale if something isn't perfect. Where do you

Re: [zfs-discuss] New Supermicro SAS/SATA controller: AOC-USAS2-L8e in SOHO NAS and HD HT

2010-08-12 Thread TheJay
Not myself yet - but here is some really interesting reading on it: http://hardforum.com/showthread.php?p=1035820555 On Aug 12, 2010, at 7:03 PM, valrh...@gmail.com wrote: Has anyone bought one of these cards recently? It seems to list for around $170 at various places, which seems like