to gmirror or to ZFS

Steve O'Hara-Smith steve at
Sat Jul 20 19:12:24 UTC 2013

On Sat, 20 Jul 2013 18:14:20 +0100
Frank Leonhardt <frank2 at> wrote:

> It's worth noting, as a warning for anyone who hasn't been there, that 
> the number of times a second drive in a RAID system fails during a 
> rebuild is higher than would be expected. During a rebuild the remaining 
> drives get thrashed, hot, and if they're on the edge, that's when 
> they're going to go. And at the most inconvenient time. Okay - obvious 
> when you think about it, but this tends to be too late.

	Having the cabinet stuffed full of nominally identical drives
bought at the same time from the same supplier tends to add to the
probability that more than one drive is on the edge when one goes. It's a
pity there are now only two manufacturers of spinning rust.

Steve O'Hara-Smith <steve at>

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