Seagate ST34502LW/LC ユーザーズマニュアル
Cheetah 9LP Installation Guide, Rev. B
17
Characteristics
ST39102LW/LC
ST34502LW/LC
Interface
Ultra2 SCSI
1
Ultra2 SCSI
Capacity
Unformatted (Gbytes)
Formatted (Gbytes)
Formatted (Gbytes)
2
11.27
9.17
9.17
5.63
4.55
4.55
Recording
Cylinders (user)
Read/write data heads
Avg bytes/track
Read/write data heads
Avg bytes/track
6,962
12
104,840-159,008
12
104,840-159,008
6,962
6
104,840-159,008
6
104,840-159,008
Access time
3
Average read (msec)
Average write (msec)
Average write (msec)
5.4
6.2
6.2
5.4
6.2
6.2
Disc rotation
RPM
Average latency (msec)
Average latency (msec)
10,025
2.99
2.99
10,025
2.99
2.99
Synchronous data transfer rate
Maximum instantaneous
(Mbytes/sec)
(Mbytes/sec)
40 (SE mode)
80 (LVD mode)
80 (LVD mode)
40 (SE mode)
80 (LVD mode)
80 (LVD mode)
Asynchronous data transfer
rate
Maximum instantaneous
rate
Maximum instantaneous
(2 bytes wide) (Mbytes/sec)
10.0
10.0
Multi-segmented cache
(kbytes)
(kbytes)
1,024 standard
4,096 optional
4,096 optional
1,024 standard
4,096 optional
4,096 optional
1.
Also operates per SCSI-1/SCSI-2/SCSI-3 protocols.
2.
The specified formatted capacities are calculated with the standard
OEM sector size (512 bytes per logical block) and sparing.
OEM sector size (512 bytes per logical block) and sparing.
3.
Includes on-board controller overhead.