> I am a bit slow today. It seems like a dying drive should be replaced > ASAP.
Completely agree with Bob on this. I drive an 8.000lb truck and the tires have industrial strength runflats. If I get a puncture or tear in a tire I replace it as soon as I can, not when it is convenient. The runflats get me out of the woods or down the street. Since you are running RAIDZ2 then the better analogy might be half-shafts, but you get the point. > Since you are using RAIDZ2, replacing the drive as described > above should not be a problem. Is the issue that your hardware does > not support hot swap and this is not a good time to shut the system > down? I would recommend a system maintenance window for failing hardware as soon as you can reasonably do it. You still have protection for your data, but a flaky drive needs to be replaced. > Regarding the proposal to replace the drive with an external USB > drive, this approach will surely "work" but since USB is only good for > about 11 or 12MB/second, performance of the whole raidz2 vdev would > surely suffer and writes would then be limited by USB speeds. It is > likely to take quite a long time to resilver to the USB drive and if > the filesystem is busy, maybe it will never catch up. It may perform > better with the dying drive. Exactly. The analogy here is the space saver spare tire. use only as a last resort :-) Bob _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
