[zfs-discuss] ZFS-Performance: Raid-Z vs. Raid5/6 vs. mirrored

2008-06-22 Thread Ralf Bertling
gards, ralf -- Ralf Bertling ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] zfs equivalent of ufsdump and ufsrestore

2008-05-29 Thread Ralf Bertling
Hi list, I'd recommend using zfs send /receive and use a secondary machine that keeps the received filesystems in a backup pool. This gives you the advantage of being able to scrub your backups. I'd like to add another question: Is there a way to efficiently replicating a complete zfs-pool inc

Re: [zfs-discuss] ZFS: A general question

2008-05-24 Thread Ralf Bertling
Hi Steve, Am 24.05.2008 um 10:17 schrieb [EMAIL PROTECTED]: > ZFS: A general question > To: zfs-discuss@opensolaris.org > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=UTF-8 > > Hello everyone, > > I'm new to ZFS and OpenSolaris, and I've been reading the docs on > ZFS (the

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

2008-05-12 Thread Ralf Bertling
Hi all, until the scrub problem (http://bugs.opensolaris.org/view_bug.do?bug_id=6343667 ) is fixed,you should be able to "simulate" a scrub on the latest data by using zfs send > /dev/null Since the primary purpose is to verify latent bugs and to have zfs auto-correct them, simply reading all

[zfs-discuss] Diverse, Dispersed, Distributed, Unscheduled RAID volumes

2008-04-25 Thread Ralf Bertling
Hi, this is true, but it might still be possible to use zfs in a distributed setup, as you can build pools from plain files that may be located anywhere on a network. Automatic status notification would require some custom scripting and it is obviously not recommended by sun ;-) The other dra

[zfs-discuss] replace-in-place: cannot replace, device is busy

2008-04-25 Thread Ralf Bertling
Hi Matt, you can use zpool replace pond ad4 after removing your old disk. The problem is, if something goes wrong during the replace, you might lose data, because you have to remove the redundant disk first. Hope this helps, ralf Am 25.04.2008 um 16:42 schrieb [EMAIL PROTECTED]: > [zfs-discuss]

[zfs-discuss] Replacing a drive, resilvering results in checksum errors?

2008-04-25 Thread Ralf Bertling
Hi Matt, if you can remember the status information and are the only administrator, you can just doa zpool clear and re-scrub your pool regularly. zpool clear does no more or less than resetting the status and the counters. (A reboot or export does the same thing, at least no Mac OS X.) The p

Re: [zfs-discuss] ZFS for write-only media?

2008-04-22 Thread Ralf Bertling
Hi Bob, If I was willing to do that I would simply build a pool from file- based storage being n-ISO images. It would involve the following steps 1. create blank ISO images of the size of your media 2. zpool create wormyz raidz2 image1.iso image2.iso image3.iso ... 3. Move your data to the pool 4.