Bad Block Pool Relocation

[ASO MANUFACTORING]

J have to create Logical Volumes on a VA7410 disk . I have to use -r N option as on the EMC or XP model ??
Thanks a lot
Valerio

[James Murtagh]

Hi Valerio,

It looks like it - see the following link :

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg35265&prodTypeId=12169&prodSeriesId=89018&locale=en_US

Cheers,

James.

[Ian Kidd_1]

logical volumes on the EMC and the XP arrays should have bad block relocation turned off (-r N) because the hardware itself can perform this action.

Leaving it on can cause erroneous messages to appear in syslog.

[T. M. Louah]

Bad Block Reallocation should be turned off, VA array manages the detection and reallocation of bad blocks internally without any intervention from LVM.

[Steven E. Protter]

Everyone I've ever spoken to at HP has told me the same thing T. M. Louah posted.

Don't do it. Wouldn't be prudent.

:-)

SEP

[Brian Lee_4]

Bad block reallocation option for logical volumes located in EMC disks needs to be disabled by "lvchange -r N" command.
It prevents OS from reallocating bad blocks.
Bad block reallocation should be done by EMC.
I think that this is required only by EMC disks.
We are using HP XP and Hitachi disks but they don't require the option to be disabled.