Seagate ST9100828SB - Manual (Page 9)

Momentus 5400.3 SATA Blade Server Product Manual, Rev. E 3
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
ST9160821SB, ST9120822SB, ST9100828SB, ST980815SB, ST960815SB, and ST9402116SB models.
2.1 Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or defi-
nition, see the appropriate section of this manual.
Table 1: Drive specifications
Drive specification ST9160821SB ST9120822SB ST9100828SB ST980815SB ST960815SB ST9402116SB
Formatted Gbytes
(512 bytes/sector)*
160 120 100 80 60 40
Guaranteed sectors 312,581,808 234,441,648 195,371,568 156,301,488 117,210,240 78,140,160
Bytes per sector 512
Physical read/write heads 4 3 3 2 2 1
Discs 2 2 2 1 1 1
Cache (Mbytes) 8
Recording density in BPI
(bits/inch max)
870k
Track density TPI (tracks/inch max) 150k
Areal density (Gbits/inch 2 max) 132
Spindle speed (RPM) 5,400
Internal transfer rate
(Mbits/sec max)
352
I/O data transfer rate
(Mbytes/sec max)
150
ATA data-transfer modes supported SATA 1.0, Serial ATA Revision 2.5
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max) 69.85 mm (2.75 +/- 0.0098 inches)
Length (max) 100.50 +/- 0.25 mm (3.957 +/- 0.010 inches)
Weight (typical) 100 grams (0.22 lb) 96 grams (0.21 lb)
Average latency (msec) 5.6
Power-on to ready (sec typical) 3.0
Standby to ready (sec typical) 3.0
Track-to-track seek time
(msec typical)
1.0 (read), 1.5 (write)