[CentOS] Disable specific LUN on a SCSI bus

nate centos at linuxpowered.net
Tue Mar 30 14:51:00 UTC 2010


Lorenzo Quatrini wrote:
> Hi all,
> do you know if there is a way at boot time do disable specific LUN's on a
> SCSI
> bus of a particular controller?

What do you need to do this for?

How about just echoing the command to /proc/scsi/scsi

echo "scsi remove-single-device X X X X" >/proc/scsi/scsi

get the values for the various X's from /proc/scsi/scsi e.g.
Host: scsi0 Channel: 01 Id: 00 Lun: 00
  Vendor: MegaRAID Model: LD 0 RAID1   69G Rev: 521S
  Type:   Direct-Access                    ANSI SCSI revision: 02

would be 0 1 0 0

nate




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