Re: [zfs-discuss] number of lun's that zfs can handle

2007-02-15 Thread Torrey McMahon
Claus Guttesen wrote: Our main storage is a HDS 9585V Thunder with vxfs and raid5 on 400 GB sata disk handled by the storage system. If I would migrate to zfs that would mean 390 jbod's. How so? ___ zfs-discuss mailing list zfs-discuss@opensolaris.o

[zfs-discuss] UPDATE: FROSUG February Meeting (2/22/2007)

2007-02-15 Thread Jim Walker
***Meeting Update*** We will be having this month's meeting at the Omni Interlocken Resort in Broomfield and a conference call number is being provided for those who can not make the meeting in person, see Meeting Details below for more information. In addition, we will be discussing Solaris Expre

Re: [zfs-discuss] Zpool complain about missing devices

2007-02-15 Thread Matthew Ahrens
Ajat wrote: Hello, We had a situation at customer site where one of the zpool complains about missing devices. We do not know which devices are missing. Here are the details: Customer had a zpool created on a hardware raid(SAN). There is no redundancy in the pool. Pool had 13 LUN's, customer wa

Re: [zfs-discuss] ZFS limits on zpool snapshots

2007-02-15 Thread Matthew Ahrens
Bill Moloney wrote: The ZFS On-Disk specification and other ZFS documentation describe the labeling scheme used for the vdevs that comprise a ZFS pool. A label entry contains, among other things, an array of uberblocks, one of which will point to the active object set of the pool it is a part of

Re: [zfs-discuss] Preferred ZFS backup solution

2007-02-15 Thread Joerg Schilling
Rich Teer <[EMAIL PROTECTED]> wrote: > Hi all, > > Is tar/star/gtar still the recommend $0 method of backing up files > that live on ZFS (assuming one is using tape for off-site storage)? > > If so, would I be correct in thinking that it is possible to extract > just the file(s) one is interested

Re: [zfs-discuss] Preferred ZFS backup solution

2007-02-15 Thread Robert Milkowski
Hello Rich, Thursday, February 15, 2007, 7:42:26 PM, you wrote: RT> Hi all, RT> Is tar/star/gtar still the recommend $0 method of backing up files RT> that live on ZFS (assuming one is using tape for off-site storage)? RT> If so, would I be correct in thinking that it is possible to extract RT>

[zfs-discuss] Preferred ZFS backup solution

2007-02-15 Thread Rich Teer
Hi all, Is tar/star/gtar still the recommend $0 method of backing up files that live on ZFS (assuming one is using tape for off-site storage)? If so, would I be correct in thinking that it is possible to extract just the file(s) one is interested in restoring from the tar archive without having t

Re: [zfs-discuss] zfs rewrite?

2007-02-15 Thread Matthew Ahrens
Pawel Jakub Dawidek wrote: What do you guys think about implementing 'zfs/zpool rewrite' command? It'll read every block older than the date when the command was executed and write it again (using standard ZFS COW mechanism, simlar to how resilvering works, but the data is read from the same dis

Re: [zfs-discuss] Is ZFS file system supports short writes ?

2007-02-15 Thread Torrey McMahon
Robert Milkowski wrote: Hello dudekula, Thursday, February 15, 2007, 11:08:26 AM, you wrote: > Hi all, Please let me know the ZFS support for short writes ? And what are short writes? http://www.pittstate.edu/wac/newwlassignments.html#ShortWrites :-P ___

[zfs-discuss] Re: Re[8]: Re: NFS/ZFS performance problems - txg_wait_open() deadlocks?

2007-02-15 Thread Robert Milkowski
To confirm again if it's avl_walk I stopped nfsd (which took a while) then issued sync() which is still running after 10 minutes. I observer that for many seconds zpool iostta (or iostta) do not show any or almost any disk traffic, then some megabytes, etc. However all the time one CPU is 100% i

Re[10]: [zfs-discuss] Re: NFS/ZFS performance problems - txg_wait_open() deadlocks?

2007-02-15 Thread Robert Milkowski
Hello eric, Wednesday, February 14, 2007, 5:04:01 PM, you wrote: ek> I'm wondering if we can just lower the amount of space we're trying ek> to alloc as the pool becomes more fragmented - we'll lose a little I/ ek> O performance, but it should limit this bug. Do you think that zfs send|recv f

Re: [zfs-discuss] Is ZFS file system supports short writes ?

2007-02-15 Thread Robert Milkowski
Hello dudekula, Thursday, February 15, 2007, 11:08:26 AM, you wrote: > Hi all,   Please let me know the ZFS support for short writes ?   And what are short writes? --  Best regards,  Robert                            mailto:[EMAIL PROTECTED]                                      

[zfs-discuss] Re: Re[8]: Re: NFS/ZFS performance problems - txg_wait_open() deadlocks?

2007-02-15 Thread Robert Milkowski
bash-3.00# ./metaslab-6495013-2.d ^C metaslab sizes value - Distribution - count 256 | 0 512 | 9031

Re: [zfs-discuss] Re: Shrinking a zpool? (refered to "Meta data corruptions on ZFS.")

2007-02-15 Thread Jesus Cea
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 The are infinite usecases for storage shrinking. A clear example is the "Meta data corruptions on ZFS." thread currently in the list. The issue is: my pool is full and I can't delete a file because the COW operation can't find enough free space (yes,

[zfs-discuss] Is ZFS file system supports short writes ?

2007-02-15 Thread dudekula mastan
Hi all, Please let me know the ZFS support for short writes ? Thanks & Regards Masthan - Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates.___ zfs-discuss mailing list zfs-discuss@opensola