ignore/disable drive

[piti]

hi,
I have my machine connected to a san with an emulex fibre channel card, the optical switch is connected to two san controllers, so I see the presented drive twice as sda and sdb
but the sda device is reported as not accessible - i/o errors, corrupted partition table or whatever error possible, here are some lines i get during boot

sda

SCSI device sda: 146800640 512-byte hdwr sectors (75162 MB)
sda: asking for cache data failed
sda: assuming drive cache: write through
SCSI device sda: 146800640 512-byte hdwr sectors (75162 MB)
sda: asking for cache data failed
sda: assuming drive cache: write through
sda:<6>Device sda not ready.
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
Device sda not ready.
Attached scsi disk sda at scsi2, channel 0, id 1, lun 1

and for the sdb:

SCSI device sdb: 146800640 512-byte hdwr sectors (75162 MB)
SCSI device sdb: drive cache: write through
SCSI device sdb: 146800640 512-byte hdwr sectors (75162 MB)
SCSI device sdb: drive cache: write through
sdb: sdb1 sdb2
Attached scsi disk sdb at scsi2, channel 0, id 2, lun 1

I have setup lvm to reject this device and using using only sdb, which works fine, just the errors when working with some utils drive me crazy
is there any possibility to disable/ignore the sda for using after boot? e.g. the /dev/sda will not be present in the system, ...
thank you

 

[mbrooks]

Don't define the drive in the /etc/fstab

M. Brooks

http://mbrooks.info

 

[piti]

it's not defined there ...