Re: [zfs-discuss] ZFS handling of many files

2008-08-21 Thread eric kustarz
On Aug 21, 2008, at 9:51 AM, Brent Jones wrote: Hello, I have been experimenting with ZFS on a test box, preparing to present it to management. One thing I cannot test right now is our real-world application load. We write to CIFS shares currently in small files. We write about 250,000

Re: [zfs-discuss] ZFS + MPXIO + SRDF

2008-08-13 Thread eric kustarz
On Aug 13, 2008, at 5:58 AM, Moinak Ghosh wrote: I have to help setup a configuration where a ZPOOL on MPXIO on OpenSolaris is being used with Symmetrix devices with replication being handled via Symmetrix Remote Data Facility (SRDF). So I am curious whether anyone has used this

Re: [zfs-discuss] more ZFS recovery

2008-08-12 Thread eric kustarz
On Aug 7, 2008, at 10:25 PM, Anton B. Rang wrote: How would you describe the difference between the file system checking utility and zpool scrub? Is zpool scrub lacking in its verification of the data? To answer the second question first, yes, zpool scrub is lacking, at least to the

Re: [zfs-discuss] ZFS on 32bit.

2008-08-08 Thread eric kustarz
I've filed specifically for ZFS: 6735425 some places where 64bit values are being incorrectly accessed on 32bit processors eric On Aug 6, 2008, at 1:59 PM, Brian D. Horn wrote: In the most recent code base (both OpenSolaris/Nevada and S10Ux with patches) all the known marvell88sx

Re: [zfs-discuss] questions about ZFS Send/Receive

2008-07-29 Thread eric kustarz
On Jul 29, 2008, at 2:24 PM, Chris Cosby wrote: On Tue, Jul 29, 2008 at 5:13 PM, Stefano Pini [EMAIL PROTECTED] wrote: Hi guys, we are proposing a customer a couple of X4500 (24 Tb) used as NAS (i.e. NFS server). Both server will contain the same files and should be accessed by

Re: [zfs-discuss] Filesystem for each home dir - 10,000 users?

2008-06-06 Thread eric kustarz
On Jun 6, 2008, at 2:50 PM, Nicolas Williams wrote: On Fri, Jun 06, 2008 at 10:42:45AM -0500, Bob Friesenhahn wrote: On Fri, 6 Jun 2008, Brian Hechinger wrote: On Thu, Jun 05, 2008 at 12:02:42PM -0400, Chris Siebenmann wrote: - as separate filesystems, they have to be separately NFS

Re: [zfs-discuss] Filesystem for each home dir - 10,000 users?

2008-06-06 Thread eric kustarz
On Jun 6, 2008, at 3:27 PM, Brian Hechinger wrote: On Fri, Jun 06, 2008 at 02:58:09PM -0700, eric kustarz wrote: clients do not. Without per-filesystem mounts, 'df' on the client will not report correct data though. I expect that mirror mounts will be coming Linux's way too. The should

Re: [zfs-discuss] Not automatically importing ZFS pools at boot

2008-06-03 Thread eric kustarz
On Jun 3, 2008, at 11:16 AM, Chris Siebenmann wrote: Is there any way to set ZFS on a system so that it will not automatically import all of the ZFS pools it had active when it was last running? The problem with automatic importation is preventing disasters in a failover situation.

Re: [zfs-discuss] Sanity check -- x4500 storage server for enterprise file service

2008-05-08 Thread eric kustarz
On May 8, 2008, at 12:31 PM, Carson Gaspar wrote: Luke Scharf wrote: Dave wrote: On 05/08/2008 08:11 AM, Ross wrote: It may be an obvious point, but are you aware that snapshots need to be stopped any time a disk fails? It's something to consider if you're planning frequent

Re: [zfs-discuss] ZFS and Linux

2008-05-06 Thread eric kustarz
On May 5, 2008, at 9:51 PM, Bill McGonigle wrote: Is it also true that ZFS can't be re-implemented in GPLv2 code because then the CDDL-based patent protections don't apply? Some of it has already been done:

Re: [zfs-discuss] ZFS still crashing after patch

2008-05-05 Thread eric kustarz
On May 5, 2008, at 4:43 PM, Bob Friesenhahn wrote: On Mon, 5 May 2008, eric kustarz wrote: That's not true: http://blogs.sun.com/erickustarz/entry/zil_disable Perhaps people are using consistency to mean different things here... Consistency means that fsync() assures that the data

Re: [zfs-discuss] zfs data corruption

2008-04-28 Thread eric kustarz
On Apr 27, 2008, at 4:39 PM, Carson Gaspar wrote: Ian Collins wrote: Carson Gaspar wrote: If this is possible, it's entirely undocumented... Actually, fmd's documentation is generally terrible. The sum total of configuration information is: FILES /etc/fm/fmd Fault

Re: [zfs-discuss] delete old zpool config?

2008-04-03 Thread eric kustarz
If you are really sure that disks c5t2d0 and c5t6d0 are not in use by anyone and want to add them as spares, then dd'ing 0s over the labes should suffice (front and back labels). Usual warnings about dd'ing 0s over a disk apply here. I'd probably do one at a time. eric On Apr 2, 2008, at

Re: [zfs-discuss] Periodic flush

2008-03-27 Thread eric kustarz
On Mar 27, 2008, at 9:24 AM, Bob Friesenhahn wrote: On Thu, 27 Mar 2008, Neelakanth Nadgir wrote: This causes the sync to happen much faster, but as you say, suboptimal. Haven't had the time to go through the bug report, but probably CR 6429205 each zpool needs to monitor its throughput

Re: [zfs-discuss] uncorrectable error during zfs send; what are the right next steps?

2008-03-24 Thread eric kustarz
messages: # tail /var/adm/messages Mar 22 17:28:36 hancock genunix: [ID 936769 kern.info] fssnap0 is / pseudo/[EMAIL PROTECTED] Mar 22 17:28:36 hancock pseudo: [ID 129642 kern.info] pseudo- device: winlock0 Mar 22 17:28:36 hancock genunix: [ID 936769 kern.info] winlock0 is /

Re: [zfs-discuss] Backup-ing up ZFS configurations

2008-03-21 Thread eric kustarz
Also history only tells me what someone typed. It doesn't tell me what other changes may have occurred. What other changes were you thinking about? eric ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Backup-ing up ZFS configurations

2008-03-21 Thread eric kustarz
. eric David On Fri, 2008-03-21 at 13:10 -0700, eric kustarz wrote: Also history only tells me what someone typed. It doesn't tell me what other changes may have occurred. What other changes were you thinking about? eric ___ zfs-discuss mailing

Re: [zfs-discuss] ZFS Send and recieve

2008-03-18 Thread eric kustarz
On Mar 17, 2008, at 6:21 AM, Mertol Ozyoney wrote: Hi All ; I am not a Solaris or ZFS expert and I am in need of your help. When I run the following command zfs send –i [EMAIL PROTECTED] [EMAIL PROTECTED] | ssh 10.10.103.42 zfs receive –F data/data41 if some one is accessing

Re: [zfs-discuss] Clearing corrupted file errors

2008-03-12 Thread eric kustarz
On Mar 12, 2008, at 12:35 PM, Ben Middleton wrote: Hi, Sorry if this is a RTM issue - but I wanted to be sure before continuing. I received a corrupted file error on one of my pools. I removed the file, and the status command now shows the following: zpool status -v rpool pool:

Re: [zfs-discuss] zfs 32bits

2008-03-07 Thread eric kustarz
On Mar 6, 2008, at 7:58 AM, Brian D. Horn wrote: Take a look at CR 6634371. It's worse than you probably thought. The only place i see ZFS mentioned in that bug report is regarding z_mapcnt. Its being atomically inc/dec in zfs_addmap()/zfs_delmap() - so those are ok. In zfs_frlock(),

Re: [zfs-discuss] modification to zdb to decompress blocks

2008-02-29 Thread eric kustarz
If you can't file a RFE yourself (with the attached diffs), then yeah, i'd like to see them so i can do it. cool stuff, eric On Feb 26, 2008, at 4:35 AM, [EMAIL PROTECTED] wrote: Hi All, I have modified zdb to do decompression in zdb_read_block. Syntax is: # zdb -R

Re: [zfs-discuss] Computer usable output for zpool commands

2008-02-20 Thread eric kustarz
On Feb 20, 2008, at 2:16 PM, Robert Milkowski wrote: Hello eric, Tuesday, February 12, 2008, 7:33:14 PM, you wrote: ek On Feb 1, 2008, at 7:17 AM, Nicolas Dorfsman wrote: Hi, I wrote an hobbit script around lunmap/hbamap commands to monitor SAN health. I'd like to add detail on what

Re: [zfs-discuss] filebench for Solaris 10?

2008-02-19 Thread eric kustarz
On Feb 16, 2008, at 5:26 PM, Bob Friesenhahn wrote: Some of us are still using Solaris 10 since it is the version of Solaris released and supported by Sun. The 'filebench' software from SourceForge does not seem to install or work on Solaris 10. The 'pkgadd' command refuses to recognize

Re: [zfs-discuss] Computer usable output for zpool commands

2008-02-12 Thread eric kustarz
On Feb 1, 2008, at 7:17 AM, Nicolas Dorfsman wrote: Hi, I wrote an hobbit script around lunmap/hbamap commands to monitor SAN health. I'd like to add detail on what is being hosted by those luns. With svm metastat -p is helpful. With zfs, zpool status output is awful for script. Is

Re: [zfs-discuss] mounting a copy of a zfs pool /file system while orginal is still active

2008-02-06 Thread eric kustarz
While browsing the ZFS source code, I noticed that usr/src/cmd/ ztest/ztest.c, includes ztest_spa_rename(), a ZFS test which renames a ZFS storage pool to a different name, tests the pool under its new name, and then renames it back. I wonder why this functionality was not exposed as

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-06 Thread eric kustarz
On Feb 4, 2008, at 5:10 PM, Marion Hakanson wrote: [EMAIL PROTECTED] said: FYI, you can use the '-c' option to compare results from various runs and have one single report to look at. That's a handy feature. I've added a couple of such comparisons:

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-02 Thread eric kustarz
On Feb 1, 2008, at 11:17 AM, Marion Hakanson wrote: [EMAIL PROTECTED] said: Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or 9*5, with 1 hot spare. [EMAIL PROTECTED] said: How you can check the speed (I'm totally newbie on Solaris) We're deploying a

Re: [zfs-discuss] 2 servers, 1 ZFS filesystem and corruptions

2008-01-25 Thread eric kustarz
On Jan 25, 2008, at 6:06 AM, Niksa Franceschi wrote: Yes, the link explains quite well the issue we have. Only difference is that server1 can be manually rebooted, and while it's still down I can mount ZFS pool on server2 even without -f option, and yet server1 when booted up still

Re: [zfs-discuss] zfs comparison

2008-01-18 Thread eric kustarz
On Jan 18, 2008, at 4:23 AM, Sengor wrote: On 1/17/08, Darren J Moffat [EMAIL PROTECTED] wrote: Pardon my ignorance, but is ZFS with compression safe to use in a production environment? Yes, why wouldn't it be ? If it wasn't safe it wouldn't have been delivered. Few reasons -

Re: [zfs-discuss] hardware for zfs home storage

2008-01-14 Thread eric kustarz
I'm using raidz2 across 8 drives, but if I had it to do again, I'd probably just use mirroring. Unfortunately, raidz2 kills your random read and write performance, and that makes Time Machine really, really slow. I'm running low on space now, and considering throwing another 8 drives into

Re: [zfs-discuss] hardware for zfs home storage

2008-01-14 Thread eric kustarz
On Jan 14, 2008, at 11:08 AM, Tim Cook wrote: www.mozy.com appears to have unlimited backups for 4.95 a month. Hard to beat that. And they're owned by EMC now so you know they aren't going anywhere anytime soon. I just signed on and am trying Mozy out. Note, its $5 per computer and

Re: [zfs-discuss] Backup/replication system

2008-01-10 Thread eric kustarz
On Jan 10, 2008, at 4:50 AM, Łukasz K wrote: Hi I'm using ZFS on few X4500 and I need to backup them. The data on source pool keeps changing so the online replication would be the best solution. As I know AVS doesn't support ZFS - there is a problem with mounting backup pool.

Re: [zfs-discuss] NCQ

2008-01-10 Thread eric kustarz
On Jan 9, 2008, at 9:09 PM, Rob Logan wrote: fun example that shows NCQ lowers wait and %w, but doesn't have much impact on final speed. [scrubbing, devs reordered for clarity] Here are the results i found when comparing random reads vs. sequential reads for NCQ:

Re: [zfs-discuss] Backup/replication system

2008-01-10 Thread eric kustarz
On Jan 10, 2008, at 9:18 AM, Łukasz K wrote: Dnia 10-01-2008 o godz. 17:45 eric kustarz napisał(a): On Jan 10, 2008, at 4:50 AM, Łukasz K wrote: Hi I'm using ZFS on few X4500 and I need to backup them. The data on source pool keeps changing so the online replication would be the best

Re: [zfs-discuss] Backup/replication system

2008-01-10 Thread eric kustarz
On Jan 10, 2008, at 5:13 PM, Jim Dunham wrote: Eric, On Jan 10, 2008, at 4:50 AM, Łukasz K wrote: Hi I'm using ZFS on few X4500 and I need to backup them. The data on source pool keeps changing so the online replication would be the best solution. As I know AVS doesn't support

Re: [zfs-discuss] clones bound too tightly to its origin

2008-01-08 Thread eric kustarz
This should work just fine with latest bits (Nevada 77 and later) via: http://bugs.opensolaris.org/view_bug.do?bug_id=6425096 Its backport is currently targeted for an early build of s10u6. eric On Jan 8, 2008, at 7:13 AM, Andreas Koppenhoefer wrote: [I apologise for reposting this... but no

Re: [zfs-discuss] Bugid 6535160

2008-01-04 Thread eric kustarz
So either we're hitting a pretty serious zfs bug, or they're purposely holding back performance in Solaris 10 so that we all have a good reason to upgrade to 11. ;) In general, for ZFS we try to push all changes from Nevada back to s10 updates. In particular, 6535160 Lock contention on

Re: [zfs-discuss] What are the dates ls shows on a snapshot?

2008-01-02 Thread eric kustarz
On Dec 23, 2007, at 7:53 PM, David Dyer-Bennet wrote: Just out of curiosity, what are the dates ls -l shows on a snapshot? Looks like they might be the pool creation date. The ctime and mtime are from the file system creation date. The atime is the current time. See:

Re: [zfs-discuss] 6604198 - single thread for compression

2007-12-12 Thread eric kustarz
On Dec 12, 2007, at 3:03 PM, Robert Milkowski wrote: Hello zfs-discuss, http://sunsolve.sun.com/search/document.do?assetkey=1-1-6604198-1 Is there a patch for S10? I thought it's been fixed. It was fixed via 6460622 zio_nowait() doesn't live up to its name and that is in s10u4.

Re: [zfs-discuss] ZFS write time performance question

2007-12-06 Thread eric kustarz
On Dec 5, 2007, at 8:38 PM, Anton B. Rang wrote: This might have been affected by the cache flush issue -- if the 3310 flushes its NVRAM cache to disk on SYNCHRONIZE CACHE commands, then ZFS is penalizing itself. I don't know whether the 3310 firmware has been updated to support the

Re: [zfs-discuss] [osol-help] Squid Cache on a ZFS file system

2007-11-01 Thread eric kustarz
Basically, I want to know if somebody here on this list is using a ZFS file system for a proxy cache and what will be it's performance? Will it improve and degrade Squid's performance? Or better still, is there any kind of benchmark tools for ZFS performance? filebench sounds like

Re: [zfs-discuss] data error in dataset 0. what's that?

2007-10-26 Thread eric kustarz
On Oct 26, 2007, at 3:21 AM, Matt Buckland wrote: Hi forum, I did something stupid the other day, managed to connect an external disk that was part of zpool A such that it appeared in zpool B. I realised as soon as I had done zpool status that zpool B should not have been online, but

Re: [zfs-discuss] ZFS mirroring

2007-10-22 Thread eric kustarz
On Oct 22, 2007, at 2:52 AM, Mertol Ozyoney wrote: I know I havent defined my particular needs. However I am looking for a simple explanation of waht is available today and what will be available in short term. Example. One to one asynch replication is suported, many to one synch

Re: [zfs-discuss] Fileserver performance tests

2007-10-10 Thread eric kustarz
Since you were already using filebench, you could use the 'singlestreamwrite.f' and 'singlestreamread.f' workloads (with nthreads set to 20, iosize set to 128k) to achieve the same things. With the latest version of filebench, you can then use the '-c' option to compare your results in a

Re: [zfs-discuss] Fileserver performance tests

2007-10-10 Thread eric kustarz
That all said - we don't have a simple dd benchmark for random seeking. Feel free to try out randomread.f and randomwrite.f - or combine them into your own new workload to create a random read and write workload. eric ___ zfs-discuss mailing

Re: [zfs-discuss] server-reboot

2007-10-10 Thread eric kustarz
This looks like a bug in the sd driver (SCSI). Does this look familiar to anyway from the sd group? eric On Oct 10, 2007, at 10:30 AM, Claus Guttesen wrote: Hi. Just migrated to zfs on opensolaris. I copied data to the server using rsync and got this message: Oct 10 17:24:04 zetta

Re: [zfs-discuss] Fileserver performance tests

2007-10-09 Thread eric kustarz
On Oct 9, 2007, at 4:25 AM, Thomas Liesner wrote: Hi, i checked with $nthreads=20 which will roughly represent the expected load and these are the results: Note, here is the description of the 'fileserver.f' workload: define process name=filereader,instances=1 { thread

Re: [zfs-discuss] When I stab myself with this knife, it hurts... But - should it kill me?

2007-10-04 Thread eric kustarz
Client A - import pool make couple-o-changes Client B - import pool -f (heh) Client A + B - With both mounting the same pool, touched a couple of files, and removed a couple of files from each client Client A + B - zpool export Client A - Attempted import and dropped the panic.

Re: [zfs-discuss] Direct I/O ability with zfs?

2007-10-03 Thread eric kustarz
Anyhow, in the case of DBs, ARC indeed becomes a vestigial organ. I'm surprised that this is being met with skepticism considering that Oracle highly recommends direct IO be used, and, IIRC, Oracle performance was the main motivation to adding DIO to UFS back in Solaris 2.6. This isn't a

Re: [zfs-discuss] Direct I/O ability with zfs?

2007-10-03 Thread eric kustarz
On Oct 3, 2007, at 3:44 PM, Dale Ghent wrote: On Oct 3, 2007, at 5:21 PM, Richard Elling wrote: Slightly off-topic, in looking at some field data this morning (looking for something completely unrelated) I notice that the use of directio on UFS is declining over time. I'm not sure what

Re: [zfs-discuss] The ZFS-Man.

2007-09-21 Thread eric kustarz
On Sep 21, 2007, at 11:47 AM, Pawel Jakub Dawidek wrote: Hi. I gave a talk about ZFS during EuroBSDCon 2007, and because it won the the best talk award and some find it funny, here it is: http://youtube.com/watch?v=o3TGM0T1CvE a bit better version is here:

Re: [zfs-discuss] enterprise scale redundant Solaris 10/ZFS server providing NFSv4/CIFS

2007-09-21 Thread eric kustarz
On Sep 21, 2007, at 3:50 PM, Tim Spriggs wrote: Paul B. Henson wrote: On Thu, 20 Sep 2007, Tim Spriggs wrote: The x4500 is very sweet and the only thing stopping us from buying two instead of another shelf is the fact that we have lost pools on Sol10u3 servers and there is no easy

Re: [zfs-discuss] Project proposal: Block selection policy and space map enhancements

2007-09-20 Thread eric kustarz
On Sep 15, 2007, at 12:55 PM, Victor Latushkin wrote: I'm proposing new project for ZFS community - Block Selection Policy and Space Map Enhancements. +1. I wonder if some of this could look into a dynamic policy. For example, a policy that switches when the pool becomes too full.

Re: [zfs-discuss] enterprise scale redundant Solaris 10/ZFS server providing NFSv4/CIFS

2007-09-20 Thread eric kustarz
On Sep 20, 2007, at 6:46 PM, Paul B. Henson wrote: On Thu, 20 Sep 2007, Gary Mills wrote: You should consider a Netapp filer. It will do both NFS and CIFS, supports disk quotas, and is highly reliable. We use one for 30,000 students and 3000 employees. Ours has never failed us. We had

Re: [zfs-discuss] Possible ZFS Bug - Causes OpenSolaris Crash

2007-09-18 Thread eric kustarz
as when using my test app. Duff -Original Message- From: eric kustarz [mailto:[EMAIL PROTECTED] Sent: Monday, September 17, 2007 6:58 PM To: J Duff; [EMAIL PROTECTED] Cc: ZFS Discussions Subject: Re: [zfs-discuss] Possible ZFS Bug - Causes OpenSolaris Crash This actually looks like

Re: [zfs-discuss] ZFS Space Map optimalization

2007-09-14 Thread eric kustarz
On Sep 14, 2007, at 8:16 AM, Łukasz wrote: I have a huge problem with space maps on thumper. Space maps takes over 3GB and write operations generates massive read operations. Before every spa sync phase zfs reads space maps from disk. I decided to turn on compression for pool ( only for

Re: [zfs-discuss] ZFS, XFS, and EXT4 compared

2007-08-30 Thread eric kustarz
On Aug 29, 2007, at 11:16 PM, Jeffrey W. Baker wrote: I have a lot of people whispering zfs in my virtual ear these days, and at the same time I have an irrational attachment to xfs based entirely on its lack of the 32000 subdirectory limit. I'm not afraid of ext4's newness, since really

Re: [zfs-discuss] ZFS, XFS, and EXT4 compared

2007-08-30 Thread eric kustarz
On Aug 30, 2007, at 12:33 PM, Jeffrey W. Baker wrote: On Thu, 2007-08-30 at 12:07 -0700, eric kustarz wrote: Hey jwb, Thanks for taking up the task, its benchmarking so i've got some questions... What does it mean to have an external vs. internal journal for ZFS? This is my first use

Re: [zfs-discuss] Why is stop scrub taking so long time???

2007-07-31 Thread eric kustarz
On Jul 31, 2007, at 5:44 AM, Orvar Korvar wrote: I have begun a scrub on a 1,5TB pool which has 600GB data, and seeing that it will take 11h47min I want to stop it. I invoked zpool scrub -s pool and nothing happens. There is no message: scub stopped or something similar. The cursor

Re: [zfs-discuss] gzip compression throttles system?

2007-07-27 Thread eric kustarz
I've filed: 6586537 async zio taskqs can block out userland commands to track this issue. eric This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] snapshot incremental diff file list?

2007-07-26 Thread eric kustarz
On Jul 25, 2007, at 11:46 PM, asa wrote: Hello all, I am interested in getting a list of the changed files between two snapshots in a fast and zfs-y way. I know that zfs knows all about what blocks have been changed, but can one map that to a file list? I know this could be solved

Re: [zfs-discuss] Oracle and ZFS

2007-07-26 Thread eric kustarz
On Jul 26, 2007, at 10:00 AM, gerald anderson wrote: Customer question: Oracle 10 Customer has a 6540 with 4 trays of 300G 10k drives. The raid sets are 3 + 1 vertically stripped on the 4 trays. Two 400G volumes are created on each raid set. Would it be best to put all of the

Re: [zfs-discuss] more love for databases

2007-07-23 Thread eric kustarz
On Jul 22, 2007, at 7:39 PM, JS wrote: There a way to take advantage of this in Sol10/u03? sorry, variable 'zfs_vdev_cache_max' is not defined in the 'zfs' module That tunable/hack will be available in s10u4: http://bugs.opensolaris.org/view_bug.do?bug_id=6472021 wait about a month and

Re: [zfs-discuss] more love for databases

2007-07-20 Thread eric kustarz
] [mailto:[EMAIL PROTECTED] On Behalf Of eric kustarz Sent: Thursday, July 19, 2007 1:24 PM To: ZFS Discussions Subject: [zfs-discuss] more love for databases Here's some info on the changes we've made to the vdev cache (in part) to help database performance: http://blogs.sun.com/erickustarz/entry

[zfs-discuss] more love for databases

2007-07-19 Thread eric kustarz
Here's some info on the changes we've made to the vdev cache (in part) to help database performance: http://blogs.sun.com/erickustarz/entry/vdev_cache_improvements_to_help enjoy your properly inflated I/O, eric ___ zfs-discuss mailing list

Re: [zfs-discuss] ZFS and powerpath

2007-07-13 Thread eric kustarz
On Jul 13, 2007, at 10:57 AM, Brian Wilson wrote: Hmm. Odd. I've got PowerPath working fine with ZFS with both Symmetrix and Clariion back ends. PowerPath Version is 4.5.0, running on leadville qlogic drivers. Sparc hardware. (if it matters) I ran one our test databases on ZFS on

Re: [zfs-discuss] ZFS Performance as a function of Disk Slice

2007-07-09 Thread eric kustarz
However, I've one more question - do you guys think NCQ with short stroked zones help or hurt performance? I have this feeling (my gut, that is), that at a low queue depth it's a Great Win, whereas at a deeper queue it would degrade performance more so than without it. Any

Re: [zfs-discuss] Thank you!

2007-07-09 Thread eric kustarz
On Jul 9, 2007, at 11:21 AM, Scott Lovenberg wrote: You sir, are a gentleman and a scholar! Seriously, this is exactly the information I was looking for, thank you very much! Would you happen to know if this has improved since build 63 or if chipset has any effect one way or the other?

Re: [zfs-discuss] Benchmarking nfs on zfs vs. other products?

2007-07-09 Thread eric kustarz
On Jul 8, 2007, at 8:05 PM, Peter C. Norton wrote: List, Sorry if this has been done before - I'm sure I'm not the only person interested in this, but I haven't found anything with the searches I've done. I'm looking to compare nfs performance between nfs on zfs and a lower-end netapp

Re: [zfs-discuss] data structures in ZFS

2007-07-05 Thread eric kustarz
On Jul 4, 2007, at 7:50 AM, Wout Mertens wrote: A data structure view of ZFS is now available: http://www.opensolaris.org/os/community/zfs/structures/ We've only got one picture up right now (though its a juicy one!), but let us know what you're interested in seeing, and we'll try to make

Re: [zfs-discuss] ZIL on user specified devices?

2007-06-22 Thread eric kustarz
On Jun 21, 2007, at 3:25 PM, Bryan Wagoner wrote: Quick question, Are there any tunables, or is there any way to specify devices in a pool to use for the ZIL specifically? I've been thinking through architectures to mitigate performance problems on SAN and various other storage

[zfs-discuss] data structures in ZFS

2007-06-22 Thread eric kustarz
A data structure view of ZFS is now available: http://www.opensolaris.org/os/community/zfs/structures/ We've only got one picture up right now (though its a juicy one!), but let us know what you're interested in seeing, and we'll try to make that happen. I see this as a nice supplement to

Re: [zfs-discuss] Bug in zpool history

2007-06-21 Thread eric kustarz
On Jun 21, 2007, at 8:47 AM, Niclas Sodergard wrote: Hi, I was playing around with NexentaCP and its zfs boot facility. I tried to figure out how what commands to run and I ran zpool history like this # zpool history 2007-06-20.10:19:46 zfs snapshot syspool/[EMAIL PROTECTED]

Re: [zfs-discuss] ZFS-fuse on linux

2007-06-20 Thread eric kustarz
On Jun 20, 2007, at 1:25 PM, mario heimel wrote: Linux is the first operating system that can boot from RAID-1+0, RAID-Z or RAID-Z2 ZFS, really cool trick to put zfs-fuse in the initramfs. ( Solaris can only boot from single-disk or RAID-1 pools )

Re: [zfs-discuss] Is this storage model correct?

2007-06-19 Thread eric kustarz
On Jun 19, 2007, at 11:23 AM, Huitzi wrote: Hi once again and thank you very much for your reply. Here is another thread. I'm planning to deploy a small file server based on ZFS. I want to know if I can start with 2 RAIDs, and add more RAIDs in the future (like the gray RAID in the

Re: [zfs-discuss] NFS and Tar/Star Performance

2007-06-14 Thread eric kustarz
On Jun 13, 2007, at 9:22 PM, Siegfried Nikolaivich wrote: On 12-Jun-07, at 9:02 AM, eric kustarz wrote: Comparing a ZFS pool made out of a single disk to a single UFS filesystem would be a fair comparison. What does your storage look like? The storage looks like: NAME

Re: [zfs-discuss] NFS and Tar/Star Performance

2007-06-12 Thread eric kustarz
Over NFS to non-ZFS drive - tar xfvj linux-2.6.21.tar.bz2 real5m0.211s, user0m45.330s, sys 0m50.118s star xfv linux-2.6.21.tar.bz2 real3m26.053s, user0m43.069s, sys 0m33.726s star -no-fsync -x -v -f linux-2.6.21.tar.bz2 real

Re: [zfs-discuss] NFS and Tar/Star Performance

2007-06-12 Thread eric kustarz
On Jun 12, 2007, at 12:57 AM, Roch - PAE wrote: Hi Seigfried, just making sure you had seen this: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine You have very fast NFS to non-ZFS runs. That seems only possible if the hosting OS did not sync the data when NFS required it or the

Re: [zfs-discuss] Panic on snv_65

2007-06-11 Thread eric kustarz
On Jun 11, 2007, at 12:52 AM, Borislav Aleksandrov wrote: Panic on snv_6564 when: #mkdir /disk #mkfile 128m /disk/disk1 #mkfile 128m /disk/disk2 #zpool create data mirror /disk/disk1 /disk/disk2 #mkfile 128m /disk/disk1 #mkfile 128m /disk/disk2 At this point you have completely overwritten

[zfs-discuss] Pawel in ;login:

2007-06-07 Thread eric kustarz
Just got the latest ;login: and Pawel has an article on Porting the Solaris ZFS File System to the FreeBSD Operating System. Lots of interesting stuff in there, such as the differences between OpenSolaris and FreeBSD, as well as getting ZFS to work with FreeBSD jails (a new 'jailed'

Re: [zfs-discuss] Slashdot Article: Does ZFS Obsolete Expensive NAS/SANs?

2007-06-05 Thread eric kustarz
Would be very nice if the improvements would be documented anywhere :-) Cindy has been doing a good job of putting the new features into the admin guide: http://www.opensolaris.org/os/community/zfs/docs/zfsadmin.pdf Check out the What's New in ZFS? section. eric

Re: [zfs-discuss] Slashdot Article: Does ZFS Obsolete Expensive NAS/SANs?

2007-06-04 Thread eric kustarz
On Jun 2, 2007, at 8:27 PM, Jesus Cea wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Toby Thain wrote: Sorry, I should have cited it. Blew my chance to moderate by posting to the thread :) http://ask.slashdot.org/comments.pl?sid=236627cid=19319903 I computed the FUD factor by

Re: [zfs-discuss] Multiple OpenSolaris boxes with access to zfs pools

2007-06-04 Thread eric kustarz
Hi Jeff, You should take a look at this: http://blogs.sun.com/erickustarz/entry/poor_man_s_cluster_end We added the hostid/hostname to the vdev label. What this means is that we stop you from importing a pool onto multiple machines (which would have lead to corruption). eric On May 30,

Re: Success: Re: [zfs-discuss] Re: I seem to have backed myself into a corner - how do I migrate filesyst

2007-06-01 Thread eric kustarz
2) Following Chris's advice to do more with snapshots, I played with his cron-triggered snapshot routine: http://blogs.sun.com/chrisg/entry/snapping_every_minute Now, after a couple of days, zpool history shows almost 100,000 lines of output (from all the snapshots and

Re: Success: Re: [zfs-discuss] Re: I seem to have backed myself into a corner - how do I migrate filesyst

2007-06-01 Thread eric kustarz
On Jun 1, 2007, at 2:09 PM, John Plocher wrote: eric kustarz wrote: We specifically didn't allow the admin the ability to truncate/ prune the log as then it becomes unreliable - ooops i made a mistake, i better clear the log and file the bug against zfs I understand - auditing means

[zfs-discuss] Re: [storage-discuss] NCQ performance

2007-05-29 Thread eric kustarz
On May 29, 2007, at 1:25 PM, Lida Horn wrote: Point one, the comments that Eric made do not give the complete picture. All the tests that Eric's referring to were done through ZFS filesystem. When sequential I/O is done to the disk directly there is no performance degradation at all.

Re: [zfs-discuss] Preparing to compare Solaris/ZFS and FreeBSD/ZFS performance.

2007-05-24 Thread eric kustarz
Don't take this numbers too seriously - those were only first tries to see where my port is and I was using OpenSolaris for comparsion, which has debugging turned on. Yeah, ZFS does a lot of extra work with debugging on (such as verifying checksums in the ARC), so always do serious

Re: [zfs-discuss] Re: snv63: kernel panic on import

2007-05-16 Thread eric kustarz
On May 15, 2007, at 4:49 PM, Nigel Smith wrote: I seem to have got the same core dump, in a different way. I had a zpool setup on a iscsi 'disk'. For details see: http://mail.opensolaris.org/pipermail/storage-discuss/2007-May/ 001162.html But after a reboot the iscsi target was not longer

Re: [zfs-discuss] Clear corrupted data

2007-05-15 Thread eric kustarz
On May 15, 2007, at 9:37 AM, XIU wrote: Hey, I'm currently running on Nexenta alpha 6 and I have some corrupted data in a pool. The output from sudo zpool status -v data is: pool: data state: ONLINE status: One or more devices has experienced an error resulting in data corruption.

Re: [zfs-discuss] Re: zpool create -f ... fails on disk with previous

2007-05-14 Thread eric kustarz
On May 12, 2007, at 2:12 AM, Matthew Flanagan wrote: On May 10, 2007, at 10:04 PM, Matthew Flanagan wrote: Hi, I have a test server that I use for testing my different jumpstart installations. This system is continuously installed and reinstalled with different system builds. For some

Re: [zfs-discuss] zpool create -f ... fails on disk with previous UFS on it

2007-05-11 Thread eric kustarz
On May 10, 2007, at 10:04 PM, Matthew Flanagan wrote: Hi, I have a test server that I use for testing my different jumpstart installations. This system is continuously installed and reinstalled with different system builds. For some builds I have a finish script that creates a zpool using

Re: [zfs-discuss] zdb -l goes wild about the labels

2007-05-07 Thread eric kustarz
On May 7, 2007, at 7:11 AM, Frank Batschulat wrote: running a recent patched s10 system, zfs version 3, attempting to dump the label information using zdb when the pool is online doesn't seem to give a reasonable information, any particular reason for this ? # zpool status pool:

[zfs-discuss] hostid/hostname now stored on the label

2007-04-27 Thread eric kustarz
In order to prevent the so-called poor man's cluster from corrupting your data, we now store the hostid and verify it upon importing a pool. Check it out at: http://blogs.sun.com/erickustarz/entry/poor_man_s_cluster_end This is bug: 6282725 hostname/hostid should be stored in the label

Re: [zfs-discuss] ZFS on NetBSD (was: zfs performance on fuse...)

2007-04-25 Thread eric kustarz
On Apr 25, 2007, at 9:16 AM, Oliver Gould wrote: Hello- I was planning on sending out a more formal sort of introduction in a few weeks, but.. hey- it came up. I will be porting ZFS to NetBSD this summer. Some info on this project can be found at:

[zfs-discuss] Re: [nfs-discuss] Multi-tera, small-file filesystems

2007-04-23 Thread eric kustarz
On Apr 18, 2007, at 6:44 AM, Yaniv Aknin wrote: Hello, I'd like to plan a storage solution for a system currently in production. The system's storage is based on code which writes many files to the file system, with overall storage needs currently around 40TB and expected to reach

Re: [zfs-discuss] zpool status -v

2007-04-19 Thread eric kustarz
On Apr 19, 2007, at 1:38 AM, Ricardo Correia wrote: Why doesn't zpool status -v display the byte ranges of permanent errors anymore, like it used to (before snv_57)? I think it was a useful feature. For example, I have a pool with 17 permanent errors in 2 files with 700 MB each, but no

Re: [zfs-discuss] Re: storage type for ZFS

2007-04-18 Thread eric kustarz
On Apr 18, 2007, at 2:35 AM, Richard L. Hamilton wrote: Well, no; his quote did say software or hardware. The theory is apparently that ZFS can do better at detecting (and with redundancy, correcting) errors if it's dealing with raw hardware, or as nearly so as possible. Most SANs _can_

Re: [zfs-discuss] CAD application not working with zfs

2007-04-09 Thread eric kustarz
On Apr 9, 2007, at 2:20 AM, Dirk Jakobsmeier wrote: Hello, was use several cad applications and with one of those we have problems using zfs. OS and hardware is SunOS 5.10 Generic_118855-36, Fire X4200, the cad application is catia v4. There are several configuration and data files

Re: [zfs-discuss] crash during snapshot operations

2007-03-23 Thread eric kustarz
On Mar 23, 2007, at 6:13 AM, Łukasz wrote: When I'm trying to do in kernel in zfs ioctl: 1. snapshot destroy PREVIOS 2. snapshot rename LATEST-PREVIOUS 3. snapshot create LATEST code is: /* delete previous snapshot */ zfs_unmount_snap(snap_previous, NULL);

Re: [zfs-discuss] Heads up: 'zpool history' on-disk version change

2007-03-21 Thread eric kustarz
Is this the same panic I observed when moving a FireWire disk from a SPARC system running snv_57 to an x86 laptop with snv_42a? 6533369 panic in dnode_buf_byteswap importing zpool Yep, thanks - i was looking for that bug :) I'll close it out as a dup. eric

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