Power Configurations
Library Overview
1-13
Example: Calculating Required Number of Drive DC Power Supplies
The example library has a Base module and a DEM with all three drive types (T10000,
T9840, LTO).
and
show how to calculate the total watts used by the
tape drives in the Base module and DEM:
The drives in the Base module use 1,546 W. In
, 1,546 W exceeds the
maximum 843 W supported by a 120 VAC PDU. Therefore, the Base module requires a
240 VAC PDU to support the drive configuration — refer to
.
The drives in the DEM use 756 W. In
, either a 120 VAC or 240
VAC PDU can support 756 W. However, you cannot mix 120 VAC with 240 VAC PDUs
within the library. Therefore, the example library requires 240 VAC PDUs.
Two tape drive DC power supplies ship standard with the Base module and two
power supplies ship standard with the DEM. Therefore, subtract two from the DC
supplies required. Use
to determine what to order.
The tables below list the power supplies required for the example library.
Table 1–5
DC Power Supplies for DEM (240 VAC PDU)
Total Watts Used
by All Drives
Power Supplies
Required for N+1
Power Supplies
Required for 2N
Power Supplies
Required for 2N+1
1 - 1,200
2
2
4
1,201 - 2,400
3
4
6
2,401 - 3,600
4
6
8
3,601 - 4,443
5
8
8
Table 1–6
Base Module Tape Drive Watts Consumption Example
Drive Type
Quantity of Drives
Multiply by Watts
Per Drive
Total Watts Per
Drive Type
T10000D
6
127
762
T9840D
6
100
600
LTO7
4
46
184
Table 1–7
DEM Tape Drive Watts Consumption Example
Drive Type
Quantity of Drives
Multiply by Watts
Per Drive
Total Watts Per
Drive Type
T10000C
4
93
372
T9840D
2
100
200
LTO5
4
46
184
Table 1–8
DC Supplies Required for Base Example
Configuration Option
DC Supplies
Required
DC Supplies to Order
(= Required - 2)
N+1 (240 VAC PDU)
3
1
2N (240 VAC PDU)
4
2
2N+1 (240 VAC PDU)
6
4
Summary of Contents for StorageTek SL3000
Page 1: ...1 StorageTek SL3000 Library Guide E20875 15 December 2018...
Page 16: ...xvi...
Page 50: ...Ordering 1 32 StorageTek SL3000 Library Guide...
Page 62: ...Installation Tools 2 12 StorageTek SL3000 Library Guide...
Page 66: ...Installing Web launched SLC 3 4 StorageTek SL3000 Library Guide...
Page 74: ...Resolving Orphaned Cartridges Caused by Capacity Changes 6 4 StorageTek SL3000 Library Guide...
Page 88: ...Configuring Dual TCP IP 8 8 StorageTek SL3000 Library Guide...
Page 112: ...Stopping a Validation 12 4 StorageTek SL3000 Library Guide...
Page 124: ...Monitoring Library Events 15 6 StorageTek SL3000 Library Guide...
Page 128: ...Rebooting the Library 16 4 StorageTek SL3000 Library Guide...
Page 166: ...Downgrading Firmware D 4 StorageTek SL3000 Library Guide...
Page 183: ...Wall Diagrams Library Addressing Reference E 17 Figure E 14 Base Module Rear Wall...
Page 185: ...Wall Diagrams Library Addressing Reference E 19 Figure E 16 DEM Front Wall...
Page 186: ...Wall Diagrams E 20 StorageTek SL3000 Library Guide Figure E 17 DEM Front Wall continued...
Page 187: ...Wall Diagrams Library Addressing Reference E 21 Figure E 18 DEM Rear Wall...
Page 188: ...Wall Diagrams E 22 StorageTek SL3000 Library Guide Figure E 19 DEM Rear Wall continued...
Page 190: ...Wall Diagrams E 24 StorageTek SL3000 Library Guide Figure E 21 Cartridge Expansion Module Rear...
Page 191: ...Wall Diagrams Library Addressing Reference E 25 Figure E 22 Parking Expansion Module Left...
Page 192: ...Wall Diagrams E 26 StorageTek SL3000 Library Guide Figure E 23 Parking Expansion Module Right...
Page 193: ...Wall Diagrams Library Addressing Reference E 27 Figure E 24 Access Expansion Module Left...
Page 194: ...Wall Diagrams E 28 StorageTek SL3000 Library Guide Figure E 25 Access Expansion Module Right...
Page 202: ...Label Care F 8 StorageTek SL3000 Library Guide...
