On Tue, 20 Jan 2009, Orvar Korvar wrote: > What does this mean? Does that mean that ZFS + HW raid with raid-5 > is not able to heal corrupted blocks? Then this is evidence against > ZFS + HW raid, and you should only use ZFS?
Yes and no. ZFS will detect corruptions that other filesystems won't notice. If your HW raid passes bad data, then ZFS will detect that but it won't be able to correct defective user data. If ZFS manages the redundancy, then ZFS can detect and correct the bad user data. With recent OpenSolaris there is also the option of setting copies=2 so that corrupted user data can be corrected as long as the ZFS pool itself continues functioning. Bob ====================================== Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
