ZFS: i/o error - all block copies unavailable on large disk
number machines
Steven Hartland
killing at multiplay.co.uk
Mon Jan 23 20:48:05 UTC 2012
----- Original Message -----
From: Olivier Smedts
>> In my case, I fixed it by having a separate /boot on some USB sticks --
>> this was only ever accessed to read the kernel, kernel modules and
>> bootloader at boot time, so no worries over performance.
Out of interest whats the procedure you used for that Matthew?
> Have you tried using a separate /boot on a zfs with copies=2 (or the
> number of vdevs composing the pool) ?
Interesting idea but this assumes that the insertion of the new disks
doesn't affect the visability of the old disk. While this may sound
like it shouldn't happen I can see the case where this may well be
the case e.g. adding disks to a multi controller system where the
id's of the added disks are lower and hence preferenced by the
BIOS.
Regards
Steve
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