HP StoreEver MSL Tape Libraries - Manual (Page 12)

Slot numbering and mailslot configurations
Magazine and mailslot numbering begins with the lower Library and continues with the master Library.
For storage slot numbering, see
Table 2 .
Table 2 Storage slot numbering
Slot numbers (without mailslots enabled) Extended library configuration
Master Library Lower Library Master Library Lower Library
25–72 1–24 MSL4048 MSL2024
49–96 1–48 MSL4048 MSL4048
25–120 1–24 MSL8096 MSL2024
49–144 1–48 MSL8096 MSL4048
The mailslots in both Libraries can be configured for use in the extended library. For mailslot numbering,
see
Table 3 .
Table 3 Mailslot numbering
Mailslot numbers (with all mailslots enabled) Extended library configuration
Master Library Lower Library Master Library Lower Library
M2–M4 M1 MSL4048 MSL2024
M4–M6 M1–M3 MSL4048 MSL4048
M2–M16 M1 MSL8096 MSL2024
M4–M19 M1–M3 MSL8096 MSL4048
Tape drives
Tape drives are numbered starting with the lower Library and continuing with the master Library.
Any tape drive in the extended library can host the SCSI Library interface. The default is the lowest
tape drive in the lower Library.
Power supply redundancy
Both Libraries must have a working power supply for the extended library to operate. To have total
power supply redundancy, both Libraries must have working redundant power supplies. In an extended
library, if only one Library has redundant power supplies installed, the extended library will continue
to operate in case of a power supply failure in that Library. An extended library containing an
MSL2024 cannot have total power supply redundancy because the MSL2024 only has one power
supply.
Features and overview 12