Re: [zfs-discuss] Some performance questions with ZFS/NFS/DNLC at snv_48

2006-11-13 Thread Tomas Ögren
On 13 November, 2006 - Sanjeev Bagewadi sent me these 7,1K bytes: Tomas, comments inline... arc::print struct arc { anon = ARC_anon mru = ARC_mru mru_ghost = ARC_mru_ghost mfu = ARC_mfu mfu_ghost = ARC_mfu_ghost size = 0x6f7a400 p =

Re: [zfs-discuss] Some performance questions with ZFS/NFS/DNLC at snv_48

2006-11-13 Thread Roch - PAE
Tomas Ögren writes: On 13 November, 2006 - Sanjeev Bagewadi sent me these 7,1K bytes: Tomas, comments inline... arc::print struct arc { anon = ARC_anon mru = ARC_mru mru_ghost = ARC_mru_ghost mfu = ARC_mfu

Re: [zfs-discuss] # devices in raidz.

2006-11-13 Thread Torrey McMahon
Howdy Robert. Robert Milkowski wrote: You've got the same behavior with any LVM when you replace a disk. So it's not something unexpected for admins. Also most of the time they expect LVM to resilver ASAP. With default setting not being 100% you'll definitely see people complaining ZFS is

Re: [zfs-discuss] # devices in raidz.

2006-11-13 Thread Victor Latushkin
Maybe something like the slow parameter of VxVM? slow[=iodelay] Reduces toe system performance impact of copy operations. Such operations are usually per- formed on small regions of the volume (nor-

Re: [zfs-discuss] Some performance questions with ZFS/NFS/DNLC at snv_48

2006-11-13 Thread Eric Kustarz
Tomas Ögren wrote: On 13 November, 2006 - Sanjeev Bagewadi sent me these 7,1K bytes: Tomas, comments inline... arc::print struct arc { anon = ARC_anon mru = ARC_mru mru_ghost = ARC_mru_ghost mfu = ARC_mfu mfu_ghost = ARC_mfu_ghost size = 0x6f7a400 p = 0x5d9bd5a

Re[2]: [zfs-discuss] raid-z random read performance

2006-11-13 Thread Robert Milkowski
Hello Jason, Friday, November 3, 2006, 4:54:04 AM, you wrote: JJWW Hi Robert, JJWW Out of curiosity would it be possible to see the same test but hitting JJWW the disk with write operations instead of read? Sorry... I really wanted to and I'm afraid I won't find enough time before my vacations

Re: [zfs-discuss] # devices in raidz.

2006-11-13 Thread Cindy Swearingen
Hi Mike, Yes, outside of the hot-spares feature, you can detach, offline, and replace existing devices in a pool, but you can't remove devices, yet. This feature work is being tracked under this RFE: http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=4852783 Cindy Mike Seda wrote:

[zfs-discuss] Re: Re: Unbootable system recovery

2006-11-13 Thread Ewen Chan
Matt: What's your contact information so that I can send that information to you? My apologies for taking so long to get back to this. Sincerely, Ewen This message posted from opensolaris.org ___ zfs-discuss mailing list

[zfs-discuss] minimum physical memory requirement?

2006-11-13 Thread Cecilia Lee
Hi, not sure whether there is a minimum physical memory requirement to run zfs? i noticed the free phyiscal memory dropped quickly while doing dd on zfs files: kthr memorypagedisk faults cpu r b w swap free re mf pi po fr de sr m1 m1 m1 m2 in

Re: [zfs-discuss] minimum physical memory requirement?

2006-11-13 Thread Robert Milkowski
Hello Cecilia, Tuesday, November 14, 2006, 3:01:42 AM, you wrote: CL Hi, CL CL not sure whether there is a minimum physical CL memory requirement to run zfs? Generally requirements are similar if you would use different file system. CL i noticed the free phyiscal memory dropped CL

[zfs-discuss] Re: Re: Re[2]: Re: Dead drives and ZFS

2006-11-13 Thread Rainer Heilke
Sorry for the delay... No, it doesn't. The format command shows the drive, but zpool import does not find any pools. I've also used the detached bad SATA drive for testing; no go. Once a drive is detached, there seems to be no (not enough?) information about the pool that allows import. I

Re: [zfs-discuss] minimum physical memory requirement?

2006-11-13 Thread Mike Gerdts
On 11/13/06, Robert Milkowski [EMAIL PROTECTED] wrote: Generally requirements are similar if you would use different file system. CL i noticed the free phyiscal memory dropped CL quickly while doing dd on zfs files: It's because ZFS doesn't use page cache and it uses kernel memory. Side

Re: [zfs-discuss] # devices in raidz.

2006-11-13 Thread Richard Elling - PAE
Torrey McMahon wrote: Robert Milkowski wrote: Hello Torrey, Friday, November 10, 2006, 11:31:31 PM, you wrote: TM Robert Milkowski wrote: Also scrub can consume all CPU power on smaller and older machines and that's not always what I would like. REP The big question, though, is 10% of

Re: [zfs-discuss] Re: Re: Re[2]: Re: Dead drives and ZFS

2006-11-13 Thread Robert Milkowski
Hello Rainer, Tuesday, November 14, 2006, 4:43:32 AM, you wrote: RH Sorry for the delay... RH No, it doesn't. The format command shows the drive, but zpool RH import does not find any pools. I've also used the detached bad RH SATA drive for testing; no go. Once a drive is detached, there RH