lvchange -r N

[Prashant Zanwar_4]

Can i do this online for a lv under cluster? Will it cause any prob for cluster? I guess not !
Thx
Prashant

[TwoProc]

I don't think it will cause you a problem. I was able to change it on a test machine's /tmp drive with no problem which it was still mounted. So, I can't see that it's going to do anything to the cluster in anyway. I guess I could get spooked by what it will do with bad blocks that it may have "already reallocated". Will it go back to using the original bad blocks if it has already remapped some? I kindo of doubt it - but I can't tell by reading man pages on it. Maybe someone else has more info on that.

[Florian Heigl (new acc)]

at first: It works online w/o problems.
regarding John's post:

Yes, this is right, the block list will NOT be reset at this point. I luckily haven't had to go through this in real life yet, but there are a few threads on this behaviour and solutions here on ITRC, though they might date back a year or two.

what I remember:
if it turns out You have inaccessible blocks out of having first used -r y/n, call in HP's competency center.
The can reset the block maps and verify that everything is where it belongs and that You can reach it.
Also rumors said that there is a tool/script to handle these things.
I do not know it it's one of the CCS-Tools in /usr/contrib/bin or something else. These tools are intended for the people that can also get the job done without them and are too arcane/risky for beginners like me to play with :)

[Silver_1]

Hi,

I have done in 8 cluster nodes without any problems.
TX