Sun Microsystems StorageTek Modular Library System SL500 - Manual (Page 47)

Tape Drives and Cartridges
96116 • Revision: KA Chapter 1 SL500 Introduction 15
Tape Drives and Cartridges
The library supports:
■
Linear Tape-Open (LTO) Ultrium tape drives:
■
Hewlett-Packard LTO Gen 2, 3 and 4 (check availability for Gen 4) SCSI low
voltage differential (LVD) and Fibre Channel (FC)
■
IBM LTO Gen 2, 3 and 4 (check availability for Gen 4) SCSI LVD and FC
■
Quantum SDLT tape drives:
■
SDLT 320 SCSI LVD
■
SDLT 600 SCSI LVD and FC
■
DLT-S4 SCSI and FC
Tape drives are hot-swappable. This means they can be replaced without removing
power from the library, as longer as the following actions are done:
■
Back up the server before removing the tape drive.
■
If the tape drives are daisy-chained, stop all data processing on the channel to which
the tape drives are connected before disconnecting the tape drives.
■
Make sure that there is no activity on the SCSI bus before disconnecting the external
SCSI cables. Stop all processes on the host.
■
Make sure that all signals are terminated at each end of the SCSI bus.
■
If your external SCSI cables are long enough that they do not interfere with
removing and replacing the tape drives, you can swap tape drives without
disconnecting the external SCSI cables. If so, disregard the steps to remove those
cables.
Caution – Possible data loss or system problem: If you must disconnect the external SCSI
cables, make sure that you quiesce the system first (stop all processes on the tape drives
on the SCSI bus with the tape drive you are replacing).
All tape drives are mounted on SL500-unique tray assemblies. Each assembly contains
the:
■
Tape drive
■
+5 VDC fan
■
RLD tape drive interface card
Drive tray assemblies are installed in slots (also called bays), accessible from the back of
the library. When a tape drive is inserted into the assigned slot, it connects to the RLD
card by way of a cable. The RLD card connects directly to the RLM or RLE (Drive
Expansion Module) backplane through a blind-mate connector.
Note – If a slot does not contain a tape drive, a vacancy plate must be installed over
the slot.