Introduction
16 SL8500: Systems Assurance Guide • July 2011
E24254-01
■
Electronics Control Module
Each library has the capability of
two
—redundant—electronics control
modules that consist of:
•
HBC card—the library controller
•
HBT card—the tape drive controller
Note:
Redundant electronics is an optional feature.
HBC Card
The HBC card is the library controller, responsible for coordinating all
component operations within the library.
This card provides the interface between the host and the library plus:
•
Library-to-library LANs
•
Tape drive service LAN
•
Rail signal interfaces for HandBots
•
Environmental monitoring circuits throughout the library
HBT Card
The HBT card is the tape drive controller, responsible for translating
commands from the library controller (HBC card) into unique drive commands
that are transferred across differential RS-422 cables to the tape drives (the
TTI interface).
HBK Card
The HBK card contains a flash memory that stores information about the
library configuration, passwords, and world wide name.
Only one HBK card is require for the controllers. This card serves both control
modules if the redundant electronics feature is installed.
In the event that you need to replace the HBC controller card, having the
information available on the HBK card prevents the need of a reconfiguration
to restore the information to the control card.
Summary of Contents for StorageTek StreamLine SL8500
Page 4: ...Summary of Changes iv SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 12: ...Contents xii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 18: ...Tables xviii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 76: ...Introduction 56 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 97: ...E24254 01 Chapter 3 Site Survey Forms 77 Site Survey Forms Figure 21 Content Management Plan ...
Page 137: ...E24254 01 Chapter 4 Site Preparation 117 Site Preparation ...
Page 138: ...Site Preparation 118 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 198: ...Electrical Conversions 176 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 206: ...Comparisons 184 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 233: ...E24254 01 Appendix H Partitioning 211 Partitioning Make copies as necessary ...
Page 240: ...Partitioning 218 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 251: ...E24254 01 Appendix J Work Sheets 229 Work Sheets Figure 73 Content Management Work Sheet ...
Page 276: ...Index 254 SL8500 Systems Assurance Guide June 2011 E24254 01 ...
Page 277: ......
Page 278: ...Oracle Corporation Worldwide Headquarters 500 Oracle Parkway Redwood Shores CA 94065 U S A ...