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manual abstract
Command View ESL/Secure Manager Mapping Algorithms
Updated: January 2005
Overview............................................................................................................................................ 3
Abbreviations, Acronyms, and Definitions............................................................................................... 3
Background Information ....................................................................................................................... 3
Mapping Requirements Lead to Rules ................................................................................................. 3
Interface Manager Modes: Automatic and Manual .............................................................................. 4
Basic vs. Advanced Secure Manager ................................................................................................. 4
Interface Manager Discovery............................................................................................................. 5
Secure Manager Mapping Rules ........................................................................................................... 5
1. Devices are ordered based on type and logical position (drive number) ............................................. 6
2. Each map will start with LUN 0...................................................................................................... 6
3. New maps remove gaps in the LUN map, but modified maps leave them ........................................... 6
4. If there is more than one FC port on a FC interface controller, load balancing algorithms are used........ 7
5. Maintain FC Port/LUN Map after cabling change on same Interface Controller................................... 9
6. Advanced Secure Manager map creation is done like Basic Secure Manager but then removes devices and
gaps if necessary ............................................................................................................................. 9
7. Maintain current FC Port/LUN assignments when adding devices in Advanced Secure Manager ........ 10
8. If modifying an existing map to remove device access with Advanced Secure Manager any gap made is
retained ........................................................................................................................................ 11
9. If devices are removed and added with Advanced Secure Manager, attempts are made to not disturb the
other device mappings ................................................................................................................... 12
10. Active Fabric is the last LUN on a map of each FC port ................................................................ 13
11. If an HBA has access to the robotics for a library partition, the logical robotics device will be added as the
next available LUN on the IC physically connected to robotics............................................................. 15
12. Maps for partitioned libraries still follow the load balancing rules based on the physical drive location15
13. The order each partition is mapped depends on the order that the HBA was added to partitions....... 16
Example 1 – ESL 9000, 2 1-Port IC’s, 8 Drives...................................................................................... 18
Example 2 – ESL 9000, 2 1-Port IC’s, 8 Drives, Non-Standard Cabling ................................................... 19
Example 3 – ESL 9000, 2 e2400-160’s, 8 Drives ................................................................................. 20
Example 4 – ESL 9000, 2 e2400-160’s, 8 Drives, Cables Swapped (Compared to Ex. 3) ......................... 21
Example 5 – ESL 9000, 1 e2400-160, 8 Drives.................................................................................... 22
Example 6 - ESL-E Series, 8 Drives ....................................................................................................... 23
Example 7 - ESL-E Series, 8 Drives, 2 Partitions ..................................................................................... 24
...Other models in this manual:
Media Storage - ESL9322 0 Drives 222 Slots (347.6 kb)
Media Storage - ESL9322 Extended Tape Library (347.6 kb)
Media Storage - ESL9322L1 2 LTO Ultrium 230 Drives 222 Slots (347.6 kb)
Media Storage - ESL9322L1 8 LTO Ultrium 230 Drives 222 Slots (347.6 kb)