| StorageTek SL150 Modular Tape Library System Systems Assurance Guide E22579-02 |
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| StorageTek SL150 Modular Tape Library System Systems Assurance Guide E22579-02 |
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This appendix describes the SL150 Modular Library System walls (sides), tape slots, and location scheme.
There are two types of walls in the library:
Left side wall, which consists of a 15-cartridge slot magazine array
Right side wall, which consists of 15-cartridge slot array magazine and 14-cartridge slot Mailslot magazine array
Figure A-1 and Figure A-2 show valid slot and drive locations.
Tapes (cartridges) placed in slots lay flat, hub down, and parallel to the floor. To prevent slippage, tapes are held within their slots by molded-in internal retainer clips.
Tape locations in previous StorageTek libraries were listed by a LIBRARY Physical addressing scheme involving "Panel, Row, and Column" indices. SL150 uses the USER Physical addressing scheme which may change per the component being referenced.
| Component | SCSI Element Address | USER Physical addressing |
|---|---|---|
| Slot (Data) | Yes | <module>, <side>, <row>, <column> |
| Slot (Reserved) | No | <module>, <side>, <row>, <column> |
| Drives | Yes | <module>, <top/bottom> |
| Mailslot | Yes | <slot number> |
| Power Supply | No | <module>, <top/bottom> |
| Hand (Robot) | Yes | n/a |
Figure A-1 through Figure A-2 illustrate where these terms apply; Table A-1 shows the starting element address and the maximum number of each element type when the SL150 library is installed with 10 modules.
Figure A-1 and Figure A-2 show valid slot and drive locations.
Table A-1 shows the starting element address and the maximum number of each element type when the SL150 library is installed with 10 modules.
The following table shows the default first element and maximum number of elements in the SL150 library.
Table A-1 Default Starting Element Address and Maximum Number of Elements
| Element Type | First Default Element Address | Maximum Number of Elements for an SL150 Library with 10 Modules |
|---|---|---|
|
Hand |
0 |
1 |
|
Mailslot |
10 |
4 |
|
Drives |
500 |
20 |
|
Storage Slots |
1000 |
300 |
The following table shows the element type and the associated numbering key in the SL150 library.
Table A-2 Numbering Key
| Element Type | Numbering Key |
|---|---|
|
Hand |
Host Address: <SCSI Element Address> |
|
Maillslot |
Host Address: <SCSI Element Address> User Physical: <slot number> |
|
Drives |
Host Address: <SCSI Element Address> User Physical: <module>,<Top|Bottom> |
|
Storage Slots |
Host Address: <SCSI Element Address> User Physical: <module>,<side>,<row>,<column> |
|
Reserved Slots |
User Physical: <module>,<side>,<row>,<column> |
|
Power Supply |
User Physical: <module>,<Top|Bottom> |
Illustration Legend:
1. Module 1 (Base)
2. Robot
3. Power supplies
4. Mailslots
5. Left magazine front
6. Right magazine front
7. Slots available for customer data tape
8. Tape drives
Illustration Legend:
1. Module 1 (Base)
2. Robot
3. Power supplies
4. Mailslots
5. Left magazine front
6. Right magazine front
7. Slots available for customer data cartridges
8. Reserved slots (Configurable)
9. Tape drives
10. Module 10 (Expansion)
The library supports only HP LTO Ultrium Linear Tape-Open (LTO) Generation 5 tape drives. The following table shows how many LTO cartridges can be placed in the library, depending on the modules installed.
Address numbering changes when a library is partitioned. Partition number is prefixed to the USER addressing indices (see Appendix B, "Partitioning Overview").
Table A-3 Slot Counts for Different Configurations
| Configuration | Module 1 | Expansion Module | Total Slots | Mailslots as Storage Slots | Maximum Drives |
|---|---|---|---|---|---|
|
Module 1 |
30 |
N/A |
30 |
4 |
2 |
|
Module 1 +1 drive expansion module |
30 |
30 |
60 |
4 |
4 |
|
Module 1 +2 drive expansion modules |
30 |
60 |
90 |
4 |
6 |
|
Module 1 +3 drive expansion modules |
30 |
90 |
120 |
4 |
8 |
|
Module 1 +4 drive expansion modules |
30 |
120 |
150 |
4 |
10 |
|
Module 1 +5 drive expansion modules |
30 |
150 |
180 |
4 |
12 |
|
Module 1 +6 drive expansion modules |
30 |
180 |
210 |
4 |
14 |
|
Module 1 +7 drive expansion modules |
30 |
210 |
240 |
4 |
16 |
|
Module 1 +8 drive expansion modules |
30 |
240 |
270 |
4 |
18 |
|
Module 1 +9 drive expansion modules |
30 |
270 |
300 |
4 |
20 |
|
Notes: 1. Expansion modules have 30 slots and 2 drives each (no mailslots) 2. When the mailslots are used for storage slots, add the mailslots count number in that column to the number in the total slots column. |
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A total of up to 3 slots are allowed to be configured within the front left (Column 1) of the base module. The reserved slots may contain diagnostic and cleaning cartridges. The customer may not elect to configure any reserved slots, in which case these are used as normal storage slots.
The user may configure up to 3 of these reserved slots in the base module magazine beginning from row 1, column 1 and proceeding to row 3 of Column 1.
Reserved slots in a partitioned library must be configured prior to enabling partitioning.
