On Jul 29, 2012, at 3:12 PM, opensolarisisdeadlongliveopensolaris 
<opensolarisisdeadlongliveopensola...@nedharvey.com> wrote:

>> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
>> boun...@opensolaris.org] On Behalf Of Jim Klimov
>>   I wondered if the "copies" attribute can be considered sort
>> of equivalent to the number of physical disks - limited to seek
>> times though. Namely, for the same amount of storage on a 4-HDD
>> box I could use raidz1 and 4*1tb@copies=1 or 4*2tb@copies=2 or
>> even 4*3tb@copies=3, for example.
> The first question - reliability...
> "copies" might be on the same disk.  So it's not guaranteed to help if you 
> have a disk failure.

I thought I understood that copies would not be on the same disk, I guess I 
need to go read up on this again.

Gregg Wonderly
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