On Wed, August 25, 2010 23:00, Neil Perrin wrote: > On 08/25/10 20:33, Edward Ned Harvey wrote: > >> It's commonly stated, that even with log device removal supported, the >> most common failure mode for an SSD is to blindly write without reporting >> any errors, and only detect that the device is failed upon read. So ... >> If an SSD is in this failure mode, you won't detect it? At bootup, the >> checksum will simply mismatch, and we'll chug along forward, having lost >> the data ... (nothing can prevent that) ... but we don't know that we've >> lost data? > > - Indeed, we wouldn't know we lost data.
Does a scrub go through the slog and/or L2ARC devices, or only the "primary" storage components? If it doesn't go through these "secondary" devices, that may be a useful RFE, as one would ideally want to test the data on every component of a storage system. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
