Why can I not rebuild the mirror disk?

[vofsky]

I rebuild the mirror disk according to the manual step by step but system always says lvol2 can not be resync...Could anyone give me advice?Thank you in advance.

[Patrick Wallek]

It is possible that your new disk has a bad spot on it that won't allow lvol2 to sync.

What steps are you taking?

[Jeff Schussele]

Or it's possible that lvol2 has a stale extent on the disk you are trying to sync "from".
What does
lvdisplay -v /dev/vg_name/lvol2
return?
Any stale extents?

Rgds,
Jeff

[RolandH]

Have you done a lvlnboot -R after you have unmirrored the root-disk?

Roland

[Ryan McKlveen]

what happens when you re-create it manually?

[Sanjiv Sharma_1]

Hi Vofsky,

Please check this link:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=311168

hth.

[Tim Adamson_1]

Check to see if the source lvol2 has a bad block by running a dd. If you get an I/O error you have found the problem.

Then check the same for the target.

[Trond Haugen]

What is the exact error message you get?

Regards,
Trond

[clement_10 · Accepted solution]

perhaps you may need to check whether your PE in lvol1 are contigously mirrored.
do a
# lvdisplay -v /dev/vg00/lvol

and compare the PE on both disk. they must be identically mapped. they same must be true for the next lvols. otherwise there could be a phyisical deffect on your mirror disk.