I would try using hdadm or cfgadm to specifically offline devices out from under ZFS.
I have done that previously with cfgadm for systems I cannot physically access. You can also use file backed storage to create your raidz and move, delete, overwrite the files to simulate issues. Shawn On Nov 23, 2009, at 1:32 PM, David Dyer-Bennet wrote: > > On Mon, November 23, 2009 11:44, sundeep dhall wrote: >> All, >> >> I have a test environment with 4 internal disks and RAIDZ option. >> >> Q) How do I simulate a sudden 1-disk failure to validate that zfs / raidz >> handles things well without data errors >> >> Options considered >> 1. suddenly pulling a disk out >> 2. using zpool offline > > 3. Use dd to a raw device to corrupt small random parts of the disks > supporting the zpool. > >> I think both these have issues in simulating a sudden failure > > Probably now it's "all three" :-(. > > -- > David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/ > Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ > Photos: http://dd-b.net/photography/gallery/ > Dragaera: http://dragaera.info > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Shawn Ferry shawn.ferry at sun.com 571.291.4898 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
