Mass Storage Guidelines - HP NetServer LC 2000r Installation Manual

Chapter 4

Mass Storage Guidelines

General Guidelines
Use care when unpacking and handling the disk drives.
The hard disk drives are very susceptible to mechanical shock and can
be easily damaged by a drop as short as one-quarter of an inch. If the
drop would crack an egg, it will damage the drive.
Do not stack drives.
Do not use high voltage differential (HVD) SCSI devices on any of the
SCSI channels or damage will occur. Use only Single-Ended (SE) or
Low-Voltage Differential (LVD) devices.
SCSI Device Selection
Ensure the SCSI devices you install in both Hot Swap and non-Hot
Swap-drive bays do not have terminations installed. The non-Hot Swap
SCSI drives are connected to a terminated cable and the Hot Swap cage
provides the termination for any unused slots in the cage.
Use only HP LVD SCSI 3.5-inch hard disk drives for the Hot Swap
drive cage.
You can use a combination of half-height (1.6-inch) and low-profile
(1.0 inch) drives in the Hot Swap cage, but be sure to use spacers and
filler panels to cover any openings. The HP Hot Swap drives come set
for LVD SCSI operation and without device ID or termination. Do not
change these settings.
Use only 3.5-inch or 5.25-inch single-ended (SE) SCSI devices for the
non-Hot Swap shelves.
The available space in the non-Hot Swap shelves supports two
half-height (1.6 inch) devices. You can order HP mounting kits for
removable media devices or trays for 3.5-inch hard disk drives
(half-height). You may use narrow/wide SCSI adapters on these
devices.
CAUTION
When installing Hot Swap drives, you must install one drive
spacer with each half-height (1.6 inch) drive and ensure there
are no drive gaps in the cage to provide proper ventilation.
36
Installing Mass Storage Devices