I think you can fool a recent Illumos kernel into thinking a 4k disk is 512
(incurring a performance hit for that disk, and therefore the vdev and
pool, but to save a raidz1, it might be worth it):
http://wiki.illumos.org/display/illumos/ZFS+and+Advanced+Format+disks , see
Overriding the Physical Sector Size
I don't know what you might have to do to coax it to do the replace with a
hot spare (zpool replace? export/import?). Perhaps there should be a
feature in ZFS that notifies when a pool is created or imported with a hot
spare that can't be automatically used in one or more vdevs? The whole
point of hot spares is to have them automatically swap in when you aren't
there to fiddle with things, which is a bad time to find out it won't work.
Tim
On Sun, Sep 23, 2012 at 10:52 PM, LIC mesh licm...@gmail.com wrote:
Well this is a new one
Illumos/Openindiana let me add a device as a hot spare that evidently has
a different sector alignment than all of the other drives in the array.
So now I'm at the point that I /need/ a hot spare and it doesn't look like
I have it.
And, worse, the other spares I have are all the same model as said hot
spare.
Is there anything I can do with this or am I just going to be up the creek
when any one of the other drives in the raidz1 fails?
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