Set maximum transfer length per IO on RAID volumes to 4MB by setting
VD's queue's max_sector to 8192.
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>