On Tue, April 13, 2010 10:38, Bob Friesenhahn wrote: > On Tue, 13 Apr 2010, Christian Molson wrote: >> >> Now I would like to add my 4 x 2TB drives, I get a warning message >> saying that: "Pool uses 5-way raidz and new vdev uses 4-way raidz" >> Do you think it would be safe to use the -f switch here? > > It should be "safe" but chances are that your new 2TB disks are > considerably slower than the 1TB disks you already have. This should > be as much cause for concern (or more so) than the difference in raidz > topology.
Not necessarily for a home server. While mine so far is all mirrored pairs of 400GB disks, I don't even think about "performance" issues, I never come anywhere near the limits of the hardware. Your suggestion (snipped) that he test performance on the new drives to see how they differ is certainly good if he needs to worry about performance. Testing actual performance in your own exact hardware is always smart. -- 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
