Oracle StorageTek SL3000, Руководство пользователя

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Power Configurations
Library Overview 1-9
Most drives are capable of reading the data recorded by an earlier generation tape
drive from the same family. Therefore, you can use existing cartridges if they are
within their warranty period.
For more information, refer to the tape drive section on the Oracle website:
http://www.oracle.com/us/products/servers-storage/storage/tape-storage/ove
rview/index.html
Encryption Capable Tape Drives
■
StorageTek T10000 A, B, C, D
■
StorageTek T9840 D
■
HP LTO generations 4, 5, 6
■
IBM LTO generations 4, 5, 6, 7
For more information, see "Tape Drive Encryption" on page 1-26.
Power Configurations
The power configuration depends on the power source and redundancy.
AC Power Source Options
Each PDU installed in the library requires a separate AC power source. There can be a
maximum of four PDUs in the library depending on the configuration selected (two in
the Base module and two in the DEM). There are two AC power source options. Both
are single phase:
■
120 VAC, 50/60 Hz, at 20 amps (range: 100–127 VAC, 47–63 Hz, 16 amps)
– Limited support for T9840 and T10000 drives; no redundant robotics support
■
240 VAC, 50/60 Hz, at 30 amps (range: 200–240 VAC, 47–63 Hz, 24 amps)
– Supports all drive types and redundant robotics
Power Redundancy Options
There are three power configurations that offer various levels of power redundancy.
N+1 power configuration (standard)
■
Offers DC power redundancy only
■
Consists of one PDU (per Base module or DEM), with one extra drive DC supply
and one extra robotics DC supply
■
Provides N+1 DC power supply redundancy
■
Limited support for T9840 and T10000 drives and no redundant robotics support
2N power configuration
■
Offers both AC and DC power redundancy
■
Consists of two PDUs (per Base module or DEM) for AC redundancy, with a set of
DC power supplies for each PDU
■
Provides N DC power supplies per PDU
■
Requires two separate AC input sources per Base module or DEM