Peripheral Upgrade Rules; Setting The Configuration Switches For Data Compression And Mrs - HP A3542A User Manual

2. Peripheral Upgrade Rules

Refer to your system installation manual for instructions and guidelines for internal peripheral installation.
For V Class servers, see the Service Manual, HP 9000 V Class Server (Part No. A3725-90006).
3. Setting the configuration switches for data
compression and MRS
There is an eight-switch DIP switch on the bottom of the tape drive. Use switches 1, 2, and 3 to set the
drive's data compression and Media Recognition System (MRS) characteristics.
•
Use switches 1 and 2 to configure the drive's data compression mode:
Switch 1 Switch 2
OFF OFF
OFF ON
ON OFF
ON ON
With switch 1 ON, data written to the tape will be compressed without the knowledge of the host.
Installation
Compression disabled. No host control.
Compression disabled. Host is allowed to control compression.
Compression enabled. No host control.
Compression enabled, with host control.
Meaning
1-3