Couldn't resynchronize logical volume

[alec_10]

There are two disk in vg00(volume group),one is boot disk.I want to mirror all logical volume in the boot disk to the other disk that is unused. There are 10 logcial volume to mirror. There is no problem for eight of them,but when mirror the other two logical volume group I got the following error message:
lvextend -m 1 /dev/vg00/lvol2
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
lvextend: Couldn't re-synchronize stale partitions of the logical volume:
I/O error
lvextend: Couldn't resynchronize logical volume "/dev/vg00/lvol8".

The vg00 is activated when I do the mirror.
what is the problem, Can anybody help me

[Denver Osborn · Accepted solution]

Could be a h/w problem w/ a disk. Use dd to try and identify the problem disk.

dd if=/dev/rdsk/cXtXdX of=/dev/null bs=1024k


-denver

[alec_10]

Do you mean only two partitions of the disk have problem?But it is ok for me to access the logical volume that can not do mirror.And because the other eight logical volumes are also in the same disk and there is no problem for them to do mirror.

Thanks for your response.

[Thirumalaimurugan.V]

Hi Alec,

Pls check the capacity of both the disks.
If size of the original disk is more than the capacity of the mirror disk you may face this problem.

Murugan