[OpenIndiana-discuss] zpool replace says the disk has a different sector alignment

[Frank Swasey]

Today at 1:16pm, Jim Klimov wrote:

> On 2013-11-20 12:48, Frank Swasey wrote:
>> One of my co-workers suggested that since this pool is made up of 4
>> 11-disk RAIDZ2's and we are using less than half the entire pool size -
>> that perhaps we can shrink the pool and create a new pool to move the
>> data to, then add the other half into the new pool.  I'm starting to do
>> more reading, but while it sounds like a good idea, I'm not sure how or
>> if it would be possible.
>
> Unfortunately, no - ZFS does not currently support reduction of
> redundancy nor reduction of pool size - pools can only grow.

Thank you.  That confirms what I was suspecting.

> At most, you might be able to "catastrophically" remove one of
> the parity disks from each set - giving you 4 available disks
> to make a new pool (and later grow it), but likely you should
> not do that (puts your main pool at risk, and will be too small
> anyway).

Yeah... Don't want to go there.  So, time to search for a 70TB fix ;)

Thanks everyone.

-- 
Frank Swasey                    | http://www.uvm.edu/~fcs
Sr Systems Administrator        | Always remember: You are UNIQUE,
University of Vermont           |    just like everyone else.
   "I am not young enough to know everything." - Oscar Wilde (1854-1900)