Iopn.diskx Enable Bad Block Remap - HP NetServer AA 6200 Administrator's Manual

IOPn.Diskx Enable Bad Block Remap

Warning: Read all instructions in this section before using this command.
Bad block remapping can be used to replace disk sectors containing bad spots with undamaged
sectors during a mirror copy.
It is possible that bad block remapping might cause file system information loss to occur,
depending on whether the sector in which the bad block was encountered is in use by your file
system. If you choose to enable bad block remapping, you are acknowledging that data
residing in any bad disk sectors may be lost. For this reason, you should back up all partitions
on this disk before you invoke this command.
If the sector is not in use by your file system, bad block remapping causes no loss of file system
information.
This command permits the SCSI software to remap bad blocks automatically during a mirror
copy for the source disk, indicated by
devices, invoke this command multiple times – once for each SCSI disk for which you want to
enable bad block remapping. This command can be issued before, during, or after a mirror copy.
Sector numbers of remapped bad blocks are logged for informational and diagnostic purposes.
Command IOPn.Diskx Enable Bad Block Remap
Console Syntax MTCCONS IOPn.Diskx Enable Bad Block Remap
n – the ID number of the IOP (1 or 2)
Variables
x – the ID number of the SCSI disk
If a bad block on the mirror source disk causes remirroring to fail, you can use
Results
this command to enable automatic bad block remapping during a mirror copy.
Bad block remapping is enabled for the device indicated by
enable bad block remapping, any additional bad blocks encountered are
remapped, not just the one that caused the mirror copy to fail.
After you enable bad block remapping for the device, use the command Reset
Mirror Copy to cause mirror copying to begin again. Once the mirror copy
completes successfully, the system automatically turns off bad block
remapping.
See Also
IOPn.Diskx Disable Bad Block Remap
IOPn.Diskx Reset Mirror Copy
IOPn.ScsiProvider Show Bad Block Status
IOPn.ScsiProvider Show Mirror Status
5-30
. To enable bad block remapping for multiple
Diskx
HP Netserver AA Solution Administrator's Guide
. When you
Diskx