Power consumption and cooling requirements

The power and cooling requirements for a frame depend on the frame model type, feature codes, and number and type of tape drives installed. Generally, the greater the number of tape drives in a frame, the more heat the frame generates. The cooling requirements increase in direct proportion to the amount of heat that is generated.

Table 1 shows the power consumption and cooling requirements for frames, common feature codes, and tape drives. Table 2 provides an example of how to calculate these values.
Table 1. Power consumption and cooling requirements for frame models
Description Power consumption (watts) Cooling requirements
(Btu/hr, max. continuous) 2
Off 1 Idle Max. continuous
(not peak)
FRAME MODELS        
L25, L55 3, 4 11 95 130 443
D25, D55, S25, S55 3, 5 0 11 11 38
FEATURE CODES        
FC 1442 HA kit with second accessor 0 24 85 290
FC 1450 (TS4500 FCA) including
one LCC and two AC/DC power supplies		 11 38 38 130
FC 1460 (redundant accessor power/network) 0 5 5 17
FC 1521, 1522, 1523, 1524
(quad drive mounting kits)		 0 3 3 10
FC 1531, 1532, 1533, 1534
(quad drive mounting kits)		 0 3 3 10
FC 1751 PDU
(for TR1 top rack)		 9 9 9 31
FC 1752 PDU 17 17 17 58
FC 1951 PDU 17 17 17 58
FC 1952 PDU 34 34 34 116
TAPE DRIVES (3592)        
TS1140 drive (3592 EH7) 6 0 28 50 171
TS1150 drive (3592 EH8) 6 0 23 48 164
TS1155 drive (3592 55F) 6 0 23 48 164
TS1155 drive (3592 55E) 6 0 50 63 215
TS1160 drive (3592 60F) 6 0 39 63 215
TS1160 drive (3592 60E) 6 0 38 62 211
TS1160 drive (3592 60S) 6 0 38 62 211
TAPE DRIVES (LTO)        
LTO 5 drive (3588 F5C)6 0 16 32 109
LTO 6 drive (3588 F6C)6 0 13 36 123
LTO 7 drive (3588 F7C) 6 0 15 31 106
LTO 8 drive (3588 F8S and F8C)6 0 18 40 136
LTO 9 drive (3588 F9S, F9C, and S9C)6 0 18 37 126
Notes:
  1. "Off" refers to power consumed when the library is connected to an AC power source and the library on/off switch is set to off.
  2. To calculate the total cooling required by the library in Btu/hr, multiply the total power in watts by 3.41. To convert Btu/hr to kBtu/hr, divide your result by 1000.
  3. Lx5 models and models with FC 1450 or FC1951 come equipped with dual AC power cords. The figures in the table show the total power that is consumed, including power that is consumed by redundant power supplies. Each power cord supplies approximately half of the power.
  4. Lx5 frame power includes all frame loads, cartridge accessor, IMC, and display.
  5. For base models that do not include FC 1450 (TS4500 FCA), the power consumption values indicate power that is provided by other frames. These values include power consumption for the lighting and two LFIs.
  6. Idle power is consumed when the drive has no tape cartridge loaded. Maximum continuous power is consumed when the drive is actively reading and writing to the tape. These power consumption values includes the power that is required for the cooling fan at normal speed. In ambient environments that are hotter than the recommended range, the cooling fan might speed up and draw more power.
Table 2. Sample calculation of total library power consumption and cooling requirements
Frame model, feature codes, and drives Quantity Power (watts) Cooling (kBtu/hr)1
Off Idle Max. continuous Max. continuous
L25 1 11 95 130 0.4
FC 1460 (redundant accessor power/network) 1 0 5 5 0.0
FC 1531, 1532, 1533, and 1534 (one of each FC per frame) 4 0 12 12 0.0
TS1160 drives 12 0 468 756 2.6
D25 3 0 33 33 0.1
FC 1450 (TS4500 FCA including one LCC and two ac/dc power supplies) 3 33 114 114 0.4
FC 1531, 1532, 1533, and 1534 (one of each FC per frame) 12 0 36 36 0.1
TS1160 drives 48 0 1872 3024 10.3
S25 4 0 44 44 0.2
FC 1442 (HA kit with second accessor; for Dx5 or Sx5) 1 0 24 85 0.3
Total library power consumption (watts) -- 44 2703 4239 14.5
Total cooling requirement (kBtu/hr)1 -- 0.2 9.2 14.5 --
Notes:
  1. To calculate the total cooling required by the library in Btu/hr, multiply the total power in watts by 3.41. To convert Btu/hr to kBtu/hr, divide your result by 1000.