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10
4.2.2
Format command execution time (minutes) [1]*
Maximum (with verify)
Maximum (no verify)
4.2.3
Generalized performance characteristics
Minimum sector interleave
Data buffer transfer rate to/from disc media (one 512-byte sector):
Min.
[4]*
11.5 MByte/sec
Avg.
[4]
15.5 MByte/sec
Max.
[4]
17.5 MByte/sec
Data buffer transfer rate to/from disc media: (< 1 track):
Min.
[4]
7.86 MByte/sec
Avg.
[4]
11.0 MByte/sec
Max.
[4]
12.5 MByte/sec
SCSI interface data transfer rate (asynchronous) [5]:
Maximum instantaneous
Maximum average
Synchronous transfer rate for SCSI Fast-20 (Ultra SCSI):
(8 bit data bus models)
Synchronous transfer rate for SCSI Fast-20 (Ultra SCSI):
(16 bit data bus models)
Synchronous transfer rate for fast SCSI-2:
(8 bit data bus models)
Synchronous transfer rate for fast SCSI-2:
(16 bit data bus models).
Sector Sizes:
Default
Variable
Read/write consecutive sectors on a track
Flaw reallocation performance impact (for flaws reallocated at format time using
the spare sectors per sparing region reallocation scheme.)
Overhead time for head switch (512 byte sectors) in sequential mode
Overhead time for one track cylinder switch in sequential mode
Average rotational latency
*[ ] Notes listed at end of Section 4.2.3.
ST34555
95
65
1 to 1
divided by (interleave factor)
divided by (interleave factor)
divided by (interleave factor)
Hawk 4XL Product Manual, Rev. A
6.0 Mbytes/sec [6]
6.0 Mbytes/sec [7]
1.25 to 20 Mbytes/sec
2.5 to 40 Mbytes/sec
1.25 to 10 Mbytes/sec
2.5 to 20 Mbytes/sec
512 byte user data blocks
180 to 4,096 bytes per sector in even number
of bytes per sector.
If n (number of bytes per sector) is odd, then
n-1 will be used.
1 msec
<2.4 msec (typical)
4.17 msec
Yes
Negligible
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