Seagate ST3300655LC Cheetah 15K.5 FC Product Manual - Page 38
ST3146855FC
View all Seagate ST3300655LC manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 38 highlights
ST3146855FC Typical power dissipation under idle conditions in 4 Gbit operation is 10.56 watts (36.0 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 7). 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. Amperes 1.400 1.200 1.000 0.800 0.600 0.400 0.200 0.000 0.0 ST3146855FC CURRENT/POWER vs THROUGHPUT (FC - 4GB) Random 8 Block Reads 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 I/Os per Second Power (watts) 5Volt A 12 Volt A Wat t s Figure 8. ST3146855FC DC current and power vs. input/output operations per second at 4 Gbit 30 Cheetah 15K.5 FC Product Manual, Rev. F