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

[Francis Swasey]

On Nov 19, 2013, at 1:50 PM, Stefan Müller-Wilken <stefan.mueller-wilken at acando.de> wrote:

> Hi there,
> 
> have you looked at http://wiki.illumos.org/display/illumos/ZFS+and+Advanced+Format+disks ? Or quoting http://thr3ads.net/zfs-discuss/2012/09/2101915-cannot-replace-X-with-Y-devices-have-different-sector-alignment as  another source, you could also try fdisk to compare your two devices:

Yes, I have looked at the first one.  and the fdisk -G shows me:

root at bujbod1:~/blocksize# fdisk -G /dev/rdsk/c5t0d0
* Physical geometry for device /dev/rdsk/c5t0d0
* PCYL     NCYL     ACYL     BCYL     NHEAD NSECT SECSIZ
  60788    60788    0        0        255   504   512   
root at bujbod1:~/blocksize# fdisk -G /dev/rdsk/c5t1d0
* Physical geometry for device /dev/rdsk/c5t1d0
* PCYL     NCYL     ACYL     BCYL     NHEAD NSECT SECSIZ
  60788    60788    0        0        255   504   512   

And it is the c5t0d0 that it can't replace.

What I have discovered since my first email is I have all these messages in /var/adm/messages for all the disks in this zpool:

Nov 19 14:24:33 bujbod1 zfs: [ID 447730 kern.warning] WARNING: Disk, '/dev/dsk/c5t10d0s0', has a block alignment that is larger than the pool's alignment

I'm guessing that the firmware upgrade I applied to this system a month ago changed something critical to ZFS on the IBM M5120 (rebranded LSI) raid controller.

Frank
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