On Nov 19, 2013, at 1:50 PM, Stefan Müller-Wilken <stefan.mueller-wil...@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@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@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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