Seagate ST336754SS Cheetah 15K.4 SAS Product Manual - Page 43
Typical power dissipation under idle conditions in 1.5 Gbit operation is 10.63 watts 36.27 BTUs per
UPC - 000064845289
View all Seagate ST336754SS manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 43 highlights
ST336754SS in 3 Gbit operation Typical power dissipation under idle conditions in 3Gb operation is 10.33 watts (35.25 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123. ST336754SS DC CURRENT/POWER vs THROUGHPUT (3 Gbit) Random 8 Block Reads 1.800 18.00 5Vo lt A 1.600 16.00 12 Vo lt A Watts 1.400 14.00 Amperes Power (watts) 1.200 12.00 1.000 10.00 0.800 8.00 0.600 6.00 0.400 0.0 4.00 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 I/Os per Second Figure 12. ST336754SS (3 Gbit) DC current and power vs. input/output operations per second ST336754SS in 1.5 Gbit operation Typical power dissipation under idle conditions in 1.5 Gbit operation is 10.63 watts (36.27 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123. ST336754SS DC CURRENT/POWER vs THROUGHPUT (1.5 Gbit) Random 8 Block Reads 1.800 18.00 5Vo lt A 1.600 16.00 12 Volt A Watts 1.400 14.00 1.200 12.00 Amperes Power (watts) 1.000 0.800 0.600 0.400 0.0 10.00 8.00 6.00 4.00 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 I/Os per Second Figure 13. ST336754SS (1.5 Gbit) DC current and power vs. input/output operations per second Cheetah 15K.4 SAS Product Manual, Rev. B 33