Re: [zfs-discuss] zpool import fails to find pool

2009-01-24 Thread James Nord
Looking at format it is missing 12 discs! Which is probably not suprisingly the number of discs in the external storage controller. The other presnt disc have moved to c2 from c0. The driver is the same for both the discs (it is the HP CQPAry3 driver) and the external storage is on the same

Re: [zfs-discuss] zpool status -x strangeness

2009-01-24 Thread Ben Miller
We haven't done 'zfs upgrade ...' any. I'll give that a try the next time the system can be taken down. Ben A little gotcha that I found in my 10u6 update process was that 'zpool upgrade [poolname]' is not the same as 'zfs upgrade [poolname]/[filesystem(s)]' What does 'zfs upgrade' say?

Re: [zfs-discuss] zfs read performance degrades over a short time

2009-01-24 Thread Richard Elling
Ray Galvin wrote: I appear to be seeing the performance of a local ZFS file system degrading over a short period of time. My system configuration: 32 bit Athlon 1800+ CPU 1 Gbyte of RAM SInce you only have 1 GByte of RAM, I would suspect the ARC is filling and becoming

Re: [zfs-discuss] [storage-discuss] AVS on opensolaris 2008.11

2009-01-24 Thread Jim Dunham
Kristof, Jim Yes, in step 5 commands were executed on both nodes. We did some more tests with opensolaris 2008.11. (build 101b) We managed to get AVS setup up and running, but we noticed that performance was really bad. When we configured a zfs volume for replication, we noticed that

Re: [zfs-discuss] zpool status -x strangeness

2009-01-24 Thread Richard Elling
Ben Miller wrote: We haven't done 'zfs upgrade ...' any. I'll give that a try the next time the system can be taken down. No need to take the system down, it can be done on the fly. The only downside to the upgrade is that you may not be able to import the pool or file system on an older

Re: [zfs-discuss] [storage-discuss] AVS on opensolaris 2008.11

2009-01-24 Thread Ahmed Kamal
Hi Jim, Thanks for your informative reply. I am involved with kristof (original poster) in the setup, please allow me to reply below Was the follow 'test' run during resynchronization mode or replication mode? Neither, testing was done while in logging mode. This was chosen to simply avoid

Re: [zfs-discuss] Raidz1 faulted with single bad disk. Requesting assistance.

2009-01-24 Thread Brad Hill
I've seen reports of a recent Seagate firmware update bricking drives again. What's the output of 'zpool import' from the LiveCD? It sounds like ore than 1 drive is dropping off. r...@opensolaris:~# zpool import pool: tank id: 16342816386332636568 state: FAULTED status: The pool

Re: [zfs-discuss] ZFS best practice on a 2530 array

2009-01-24 Thread Bob Friesenhahn
On Sat, 24 Jan 2009, River Tarnell wrote: i have a system connected to a StorageTek 2530 SAS array (12 disks), on which i want to run ZFS. in the past, when using ZFS on an external array, i would simply create one LUN on the array and create the ZFS pool on this; but for various

[zfs-discuss] locate disk command? locate broken disk?

2009-01-24 Thread Orvar Korvar
If zfs says that one disk is broken, how do I locate it? It says that disk c0t3d0 is broken. Which disk is that? I must locate them during install? In Thumper it is possible to issue a ZFS command, and the corresponding disk's lamp will flash? Is there any zlocate command that will flash a

Re: [zfs-discuss] zfs read performance degrades over a short time

2009-01-24 Thread Ray Galvin
Thanks for the information Richard! The output of running arcstat.pl is included below. A potentially interesting thing I see is that the Prefetch miss percentage is 100% during this test. I would have thought that a large sequential read test would be an easy case for prefetch prediction.

Re: [zfs-discuss] zfs read performance degrades over a short time

2009-01-24 Thread Richard Elling
Ray Galvin wrote: Thanks for the information Richard! The output of running arcstat.pl is included below. A potentially interesting thing I see is that the Prefetch miss percentage is 100% during this test. I would have thought that a large sequential read test would be an easy case for

Re: [zfs-discuss] ZFS best practice on a 2530 array

2009-01-24 Thread River Tarnell
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bob Friesenhahn: Please make sure to read my write-up of how I configured a StorageTek 2540 array (FC version of same hardware) for use with ZFS. It can be found at

Re: [zfs-discuss] ZFS best practice on a 2530 array

2009-01-24 Thread Bob Friesenhahn
On Sat, 24 Jan 2009, River Tarnell wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bob Friesenhahn: Please make sure to read my write-up of how I configured a StorageTek 2540 array (FC version of same hardware) for use with ZFS. It can be found at

[zfs-discuss] danging dbufs in ZFS v6 , FreeBSD 7.1

2009-01-24 Thread Bryant Eadon
First, I've been very impressed with ZFS performance and notification of problems. It was because of this early notification that I should have been able to salvage an array properly! Onto the problem I'm hoping you can solve ! : Running on a 64bit platform with 5, 500GB HDDs in a basic raidz

Re: [zfs-discuss] NFS Block Monitor

2009-01-24 Thread Marcelo Leal
FYI (version 0.3): http://www.eall.com.br/blog/?p=970 Leal [ http://www.eall.com.br/blog ] Hello all.. I did some tests to understand the behaviour of ZFS and slog (SSD), and for understand the workload i did implement a simple software to visualize the data blocks (read/write). I'm

Re: [zfs-discuss] Where does set the value to zio-io_offset?

2009-01-24 Thread Jeff Bonwick
Each ZFS block pointer contains up to three DVAs (data virtual addresses), to implement 'ditto blocks' (multiple copies of the data, above and beyond any replication provided by mirroring or RAID-Z). Semantically, ditto blocks are a lot like mirrors, so we actually use the mirror code to read

Re: [zfs-discuss] locate disk command? locate broken disk?

2009-01-24 Thread Richard Elling
Orvar Korvar wrote: If zfs says that one disk is broken, how do I locate it? It says that disk c0t3d0 is broken. Which disk is that? I must locate them during install? In Thumper it is possible to issue a ZFS command, and the corresponding disk's lamp will flash? Is there any zlocate