> Or is there a way to mitigate a checksum error on non-redundant zpool?
It's just like the difference between non-parity, parity, and ECC memory. Most filesystems don't have checksums (non-parity), so they don't even know when they're returning corrupt data. ZFS without any replication can detect errors, but can't fix them (like parity memory). ZFS with mirroring or RAID-Z can both detect and correct (like ECC memory). Note: even in a single-device pool, ZFS metadata is replicated via ditto blocks at two or three different places on the device, so that a localized media failure can be both detected and corrected. If you have two or more devices, even without any mirroring or RAID-Z, ZFS metadata is mirrored (again via ditto blocks) across those devices. Jeff _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
