topic Bad Block Relocation in Operating System - HP-UX

Bad Block Relocation

Daniel Fourie — Mon, 19 Jul 2004 01:03:46 GMT

Hi

We have got a va7400 with bad block relocation set to true. There is about 10 hosts connected to this VA running HP-UX11i in a MC-ServiceGuard cluster. These host has got Bad Block Relocation also switched on.

Should either be turned off or both be left on, and if it should be turned off witch of the two should be turned off.

Regards
Daniel

Re: Bad Block Relocation

Massimo Bianchi — Mon, 19 Jul 2004 02:03:09 GMT

Hi,
here are some pointer, to let you decide.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=141540

http://www4.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000063232119

http://www4.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062966709

http://www4.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000066580817

Let's say: unfortunatly i do not remember the specifications or the VA7400, but since it is an evolution of the autoraid, i would turn it OFF.

Regards,
Massimo

Re: Bad Block Relocation

Dietmar Konermann — Mon, 19 Jul 2004 04:03:55 GMT

LVM's Bad Block Relocation feature is supposed to be removed completely in the future... simply because all supported disks/diskarrays provide their own flavour of bad block handling.

I personally tend to recommend lvchange -r N... always. Simply because this additional level of error handling makes fault isolation more complex without need.

Best regards...
Dietmar.