Re: [zfs-discuss] Workaround for mpt timeouts in snv_127

2010-04-10 Thread Markus Kovero
... I have identified the culprit is the Western Digital drive WD2002FYPS-01U1B0. It's not clear if they can fix it in firmware, but Western Digital is replacing my drives. Feb 17 04:45:10 thecratewall scsi_status=0x0, ioc_status=0x804b, scsi_state=0xc Feb 17 04:45:10 thecratewall scsi:

Re: [zfs-discuss] Areca ARC-1680 on OpenSolaris 2009.06?

2010-04-10 Thread Erik Trimble
Tonmaus wrote: Hi David, why not just use a couple of SAS expanders? Regards, Tonmaus I would go this route (SAS expanders for a 8-port HBA). E.g.: http://www.supermicro.com/products/accessories/mobilerack/CSE-M28E2.cfm is a great internal bay set up if you want a non-Supermicro

Re: [zfs-discuss] Workaround for mpt timeouts in snv_127

2010-04-10 Thread Maurice Volaski
Hi, do you have disks connected in sata1/2? With WD2003FYYS-01T8B0/WD20EADS-00S2B0/WD1001FALS-00J7B1/WD1002FBYS-01A6B0 these timeouts are to be expected if disk is in SATA2 mode, No, why are they to be expected with SATA2 mode? Is the defect specific to the SATA2 circuitry? I guess it could

Re: [zfs-discuss] Workaround for mpt timeouts in snv_127

2010-04-10 Thread Markus Kovero
No, why are they to be expected with SATA2 mode? Is the defect specific to the SATA2 circuitry? I guess it could be a temporary workaround provided they would eventually fix the problem in firmware, but I'm getting new drives, so I guess I can't complain :-) Probably your new disks do

Re: [zfs-discuss] Areca ARC-1680 on OpenSolaris 2009.06?

2010-04-10 Thread Richard Jahnel
Just as an FYI, not all drives like sas expanders. As an example, we had a lot of trouble with Indilinx MLC based SSDs. The systems had Adaptec 52445 controllers and Chenbro SAS expanders. In the end we had to remove the SAS expanders and put a 2nd 52445 in each system to get them to work

Re: [zfs-discuss] about backup and mirrored pools

2010-04-10 Thread Harry Putnam
David Dyer-Bennet d...@dd-b.net writes: [...] Am I way wrong on this, and further I'm curious if it would make more versatile use of the space if I were to put the mirrored pairs into one big pool containing 3 mirrored pairs (6 discs) Well, my own thinking doesn't consider that adequate for

Re: [zfs-discuss] about backup and mirrored pools

2010-04-10 Thread Harry Putnam
Bob Friesenhahn bfrie...@simple.dallas.tx.us writes: On Fri, 9 Apr 2010, Harry Putnam wrote: Am I way wrong on this, and further I'm curious if it would make more versatile use of the space if I were to put the mirrored pairs into one big pool containing 3 mirrored pairs (6 discs) Besides

Re: [zfs-discuss] about backup and mirrored pools

2010-04-10 Thread Harry Putnam
Richard Jahnel rich...@ellipseinc.com writes: [...] Perhaps mirrored sets with daily snapshots and a knowedge of how to mount snapshots as clones so that you can pull a copy of that file you deleted 3 days ago. :) I've been doing that with the default auto snapshot setup, but hadn't noticed

Re: [zfs-discuss] Areca ARC-1680 on OpenSolaris 2009.06?

2010-04-10 Thread Tonmaus
As far as I have read, that problem has been reported to be a compatibility problem of the Adaptec controller and the expander chipset, e.g. LSI SASx which is also on the mentioned Chenbro expander. There is no problem with 106x chipset and sas expanders that I know of. People sceptical about

Re: [zfs-discuss] about backup and mirrored pools

2010-04-10 Thread Bob Friesenhahn
On Sat, 10 Apr 2010, Harry Putnam wrote: Am I way wrong on this, and further I'm curious if it would make more versatile use of the space if I were to put the mirrored pairs into one big pool containing 3 mirrored pairs (6 discs) Besides more versatile use of the space, you would get 3X the

[zfs-discuss] What happens when unmirrored ZIL log device is removed ungracefully

2010-04-10 Thread Edward Ned Harvey
Due to recent experiences, and discussion on this list, my colleague and I performed some tests: Using solaris 10, fully upgraded. (zpool 15 is latest, which does not have log device removal that was introduced in zpool 19) In any way possible, you lose an unmirrored log device, and the OS

Re: [zfs-discuss] What happens when unmirrored ZIL log device is removed ungracefully

2010-04-10 Thread Bob Friesenhahn
On Sat, 10 Apr 2010, Edward Ned Harvey wrote: Using solaris 10, fully upgraded.  (zpool 15 is latest, which does not have log device removal that was introduced in zpool 19)  In any way possible, you lose an unmirrored log device, and the OS will crash, and the whole zpool is permanently

[zfs-discuss] Sync Write - ZIL log performance - Feedback for ZFS developers?

2010-04-10 Thread Edward Ned Harvey
Neil or somebody? Actual ZFS developers? Taking feedback here? ;-) While I was putting my poor little server through cruel and unusual punishment as described in my post a moment ago, I noticed something unexpected: I expected that while I'm stressing my log device by infinite sync

Re: [zfs-discuss] What happens when unmirrored ZIL log device is removed ungracefully

2010-04-10 Thread Tim Cook
On Sat, Apr 10, 2010 at 10:08 AM, Edward Ned Harvey solar...@nedharvey.comwrote: Due to recent experiences, and discussion on this list, my colleague and I performed some tests: Using solaris 10, fully upgraded. (zpool 15 is latest, which does not have log device removal that was

Re: [zfs-discuss] Sync Write - ZIL log performance - Feedback for ZFS developers?

2010-04-10 Thread Bob Friesenhahn
On Sat, 10 Apr 2010, Edward Ned Harvey wrote: For several seconds, *only* the log device is busy.  Then it stops, and for maybe 0.5 secs *only* the primary storage disks are busy.  Repeat, recycle. I expected to see the log device busy nonstop.  And the spindle disks blinking lightly.  As

Re: [zfs-discuss] What happens when unmirrored ZIL log device is removed ungracefully

2010-04-10 Thread matthew patton
Thanks for the testing. so FINALLY with version 19 does ZFS demonstrate production-ready status in my book. How long is it going to take Solaris to catch up? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] ZFS RaidZ recommendation

2010-04-10 Thread Tim Cook
On Fri, Apr 9, 2010 at 9:31 PM, Eric D. Mudama edmud...@bounceswoosh.orgwrote: On Sat, Apr 10 at 7:22, Daniel Carosone wrote: On Fri, Apr 09, 2010 at 10:21:08AM -0700, Eric Andersen wrote: If I could find a reasonable backup method that avoided external enclosures altogether, I would

[zfs-discuss] Secure delete?

2010-04-10 Thread Roy Sigurd Karlsbakk
Hi all Is it possible to securely delete a file from a zfs dataset/zpool once it's been snapshotted, meaning delete (and perhaps overwrite) all copies of this file? Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er

Re: [zfs-discuss] about backup and mirrored pools

2010-04-10 Thread Harry Putnam
Bob Friesenhahn bfrie...@simple.dallas.tx.us writes: On Sat, 10 Apr 2010, Harry Putnam wrote: Am I way wrong on this, and further I'm curious if it would make more versatile use of the space if I were to put the mirrored pairs into one big pool containing 3 mirrored pairs (6 discs) Besides

Re: [zfs-discuss] Secure delete?

2010-04-10 Thread Andrey Kuzmin
No, until all snapshots referencing the file in question are removed. Simplest way to understand snapshots is to consider them as references. Any file-system object (say, file or block) is only removed when its reference count drops to zero. Regards, Andrey On Sat, Apr 10, 2010 at 10:20 PM,

Re: [zfs-discuss] Secure delete?

2010-04-10 Thread Joerg Schilling
Roy Sigurd Karlsbakk r...@karlsbakk.net wrote: I guess that's the way I thought it was. Perhaps it would be nice to add such a feature? If something gets stuck in a truckload of snapshots, say a 40GB file in the root fs, it'd be nice to just rm --killemall largefile Let us first asume the

Re: [zfs-discuss] Sync Write - ZIL log performance - Feedback for ZFS developers?

2010-04-10 Thread Daniel Carosone
On Sat, Apr 10, 2010 at 11:50:05AM -0500, Bob Friesenhahn wrote: Huge synchronous bulk writes are pretty rare since usually the bottleneck is elsewhere, such as the ethernet. Also, large writes can go straight to the pool, and the zil only logs the intent to commit those blocks (ie, link them

Re: [zfs-discuss] Areca ARC-1680 on OpenSolaris 2009.06?

2010-04-10 Thread Richard Jahnel
Any hints as to where you read that? I'm working on another system design with LSI controllers and being able to use SAS expanders would be a big help. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] ZFS RaidZ recommendation

2010-04-10 Thread Daniel Carosone
On Sat, Apr 10, 2010 at 12:56:04PM -0500, Tim Cook wrote: At that price, for the 5-in-3 at least, I'd go with supermicro. For $20 more, you get what appears to be a far more solid enclosure. My intent with that link was only to show an example, not make a recommendation. I'm glad others have

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Daniel Carosone
On Sat, Apr 10, 2010 at 02:51:45PM -0500, Harry Putnam wrote: [Note: This discussion started in another thread Subject: about backup and mirrored pools but the subject has been significantly changed so started a new thread] Bob Friesenhahn bfrie...@simple.dallas.tx.us writes:

Re: [zfs-discuss] Sync Write - ZIL log performance - Feedback for ZFS developers?

2010-04-10 Thread Neil Perrin
On 04/10/10 09:28, Edward Ned Harvey wrote: Neil or somebody? Actual ZFS developers? Taking feedback here? ;-) While I was putting my poor little server through cruel and unusual punishment as described in my post a moment ago, I noticed something unexpected: I expected that

Re: [zfs-discuss] Sync Write - ZIL log performance - Feedback for ZFS developers?

2010-04-10 Thread Neil Perrin
On 04/10/10 14:55, Daniel Carosone wrote: On Sat, Apr 10, 2010 at 11:50:05AM -0500, Bob Friesenhahn wrote: Huge synchronous bulk writes are pretty rare since usually the bottleneck is elsewhere, such as the ethernet. Also, large writes can go straight to the pool, and the zil only

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Bob Friesenhahn
On Sun, 11 Apr 2010, Daniel Carosone wrote: The migration he's referring to is of disks, not of contents. The contents you'd have to migrate first (say with send|recv), before destroying the emptied pool and adding the disks to the pool you want to expand, as a new vdev.There's an implicit

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Bob Friesenhahn
On Sat, 10 Apr 2010, Bob Friesenhahn wrote: Since he is already using mirrors, he already has enough free space since he can move one disk from each mirror to the main pool (which unfortunately, can't be the boot 'rpool' pool), send the data, and then move the second disks from the pools

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Daniel Carosone
On Sat, Apr 10, 2010 at 06:20:54PM -0500, Bob Friesenhahn wrote: Since he is already using mirrors, he already has enough free space since he can move one disk from each mirror to the main pool (which unfortunately, can't be the boot 'rpool' pool), send the data, and then move the second

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Harry Putnam
Daniel Carosone d...@geek.com.au writes: Thanks for the input.. very helpful. [...] No, as above. You might consider new disks for a new rpool (say, ssd with some zil or l2arc) and reusing the current disks for data if they're the same as the other data disks. Would you mind expanding the

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Bob Friesenhahn
On Sat, 10 Apr 2010, Harry Putnam wrote: Would you mind expanding the abbrevs: ssd zil 12arc? SSD = Solid State Device ZIL = ZFS Intent Log (log of pending synchronous writes) L2ARC = Level 2 Adaptive Replacement Cache Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us,

Re: [zfs-discuss] Create 1 pool from 3 exising pools in mirror configuration

2010-04-10 Thread Ian Collins
On 04/11/10 11:55 AM, Harry Putnam wrote: Would you mind expanding the abbrevs: ssd zil 12arc? http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide -- Ian. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org