Lustre 1.6 Operations Manual

NEWCHK=$($CKSUM $NEWNAME | awk '{print $1}')
if [ $OLDCHK != $NEWCHK ]; then
echo "$NEWNAME bad checksum - $i not
moved, \ exiting"
rm -f $NEWNAME
exit 1
else
mv $NEWNAME $i
if [ $RES -ne 0 ];then
echo "$i move error - exiting"
rm -f $NEWNAME
exit 1
fi
fi
fi
done
27.3 Adding Multiple SCSI LUNs on Single
HBA
The configuration of the kernels packaged by the Lustre group is similar to that of
the upstream RedHat and SuSE packages. Currently, RHEL does not enable
CONFIG_SCSI_MULTI_LUN because it can cause problems with SCSI hardware.
To enable this, set the scsi_mod max_scsi_luns=xx option (typically, xx is 128)
in either modprobe.conf (2.6 kernel) or modules.conf (2.4 kernel).
To pass this option as a kernel boot argument (in grub.conf or lilo.conf),
compile the kernel with CONFIG_SCSI_MULT_LUN=y
27-4 Lustre 1.6 Operations Manual • September 2008