10
Elite 47 Product Manual, Rev. A
Synchronous transfer rate for fast SCSI-2:
16 bit data bus
5.0 to 40 Mbytes/sec
Sector sizes:
Default
512-byte data blocks
Variable in even-sector sizes
512 to 4,096 bytes per sector
Read/write consecutive sectors on a track
Yes
Flaw reallocation performance impact:
For flaws reallocated at format time using spare
sectors per track reallocation scheme
negligible
For flaws reallocated after format time using spare
sectors per cylinder reallocation scheme
11.1 msec (minimum)
22.2 msec (maximum)
For flaws reallocated after format time using spare
tracks per volume reallocation scheme
35 msec (typical)
Overhead time for head switch (512-byte sectors)
in sequential mode
0.8 msec
Overhead time for one track cylinder switch
in sequential mode
1.2 msec (typical)
Average rotational latency
5.60 msec
Notes for Sections 4.2.
[1]
Execution time is measured from receipt of the last byte of the Command Descriptor Block (CDB) to the
request for a status byte transfer to the initiator (excluding connect/disconnect).
[2]
Maximum times are specified over the worst case conditions of temperature, voltage margins and drive
orientation. When comparing specified access times, take care to distinguish between typical access
times and maximum access times. Obtain the best comparison by conducting system benchmark tests
under identical conditions. Maximum times do not include error recovery.
[3]
Typical access times are measured under nominal conditions of temperature, voltage, and horizontal ori-
entation as measured on a representative sample of drives.
[4]
Assumes no errors and no sector reallocations.
[5]
Rate measured from the start of the first sector transfer to or from the host.
[6]
Assumes system ability to support the 1-byte-wide transfer rate listed and no cable loss.
[7]
Assumes system ability to support the 2-byte-wide transfer rate listed and no cable loss.
