Seagate Barracuda ST340015A - Manual (Page 12)

4 Barracuda 5400.1 Product Manual, Rev. G
Drive specification ST340015A
Formatted Gbytes (x10
6
bytes) 40
Guaranteed sectors 78,165,360
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 1
Discs 1
Recording density BPI (bits/inch max) 475,127
Track density TPI (tracks/inch max) 94,000
Areal density (Mbits/inch
2
max) 49,888
Spindle speed (RPM) 5,800
Internal data transfer rate (Mbits/sec) 511
I/O data transfer rate (Mbytes/sec max) 100
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes) 2
Height (mm max) 19.99
Width (mm max) 102
Length (mm max) 146.9
Weight (typical) 454 grams (1.1 lb)
Average seek time (msec typical) 12.5 (read); 13.5 (write)
Track-to-track seek time (msec typical) 0.3 (read); 0.7 (write)
Read/write seek time (msec typical) 15.5 (read); 16.5 (write)
Full-stroke seek time (msec typical) 26 (read); 28 (write)
Power-on to ready (max) 6.5 seconds
Standby to ready (typical) 6.0 seconds
Spindown (typical) 10 seconds
Startup current (max) 1.20 amps (5V); 2.0 amps (12V)
Seek power (typical) 7.3 watts
Read/Write power 6.6 watts