[OpenIndiana-discuss] find size of raw disks

Chris Ridd chrisridd at mac.com
Mon Nov 22 07:36:44 UTC 2010

On 22 Nov 2010, at 04:14, Harry Putnam wrote:

> McBofh <james.c.mcpherson at gmail.com> writes:
>> It's mostly the cylinder numbers that you need to watch out for.
>> If you have devices with the same claimed manufacturer size but
>> different geometry, I'd create a slice of the maximum size on the
>> smaller disk, then create a slice with the same number of cylinders
>> on the larger disk, and then mirror those two slices.
> Thanks... very helpful.  I noticed though that once a disk is formatted
> or put into a zpool the cyl no. is no longer given, but then the size
> is shown

Once they've got EFI labels, that's the format (sic) you get IIRC. Does prtvtoc help?

I thought ZFS was nowadays able to copy with mirroring "identical" disks which differed by a number of blocks.



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