Disk Striping - HP Vectra XU 6/XXX Optimization Manual

When connecting SCSI devices, it is recommended that you observe the following overall
cable length restrictions.
Configuration
Ultra SCSI operation (20 MB/s) with
up to four devices connected
Ultra SCSI operation (20 MB/s) with
five or more devices connected
SCSI-2 operation (10 MB/s) with up to
seven devices connected

DISK STRIPING

If you are using Windows NT, your PC's integrated SCSI controller is able to improve the
performance of your SCSI hard disk drives by using disk striping. This is a method of grouping
multiple disk drives together so that they seem, to the user, as a single (logical) disk. Data is
stored across these multiple disk drives in stripes of equal size; the first stripe is stored on the
first drive in the group, the second stripe on the second drive and so forth.
The advantage of disk striping is that it significantly reduces the impact of your disk drives'
main performance limitation which is the interface between the SCSI channel and the hard disk
drive.
When your PC writes data to a particular SCSI hard disk drive, that data passes from the
integrated SCSI controller to a buffer on the disk drive. The drive then transfers the data from
Maximum Recommended Cable Length
3 m
1.5 m
6 m