Product manual

vi Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A
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Table of contents
1.0 Scope.......................................................................................................................................... 1
2.0 Applicable standards and reference documentation.............................................................. 2
2.1 Standards ....................................................................................................................... 2
2.2 Applicable reference documents ..................................................................................... 2
3.0 General description ................................................................................................................... 3
4.0 Standards features .................................................................................................................... 5
4.1. Performance ................................................................................................................... 5
4.1.1 Reliability ........................................................................................................... 5
4.2 Unformatted and formatted capacities ............................................................................ 6
4.3 Options (factory installed) ............................................................................................... 6
4.4 Optional accessories (user installed) .............................................................................. 6
4.5 Installation....................................................................................................................... 7
5.0 Performance characteristics..................................................................................................... 8
5.1 Internal drive characteristics (transparent to user) .......................................................... 8
5.2 SCSI drive Seek, Read and Write performance characteristics (Visible to User) ............ 8
5.2.1 Seek time ........................................................................................................... 8
5.2.2 Format drive command execution time .............................................................. 9
5.2.3 Read data command execution time .................................................................. 9
5.2.4 Write data command execution time .................................................................. 9
5.3 Generalized performance characteristics........................................................................ 10
5.4 Start/stop time................................................................................................................. 11
5.5 Prefetch/multi segmented cache control ......................................................................... 12
5.5.1 Cache operation................................................................................................. 12
5.5.2 Prefetch operation.............................................................................................. 13
5.6 Caching write data .......................................................................................................... 14
5.7 Synchronized spindle operation ...................................................................................... 14
6.0 Reliability specifications ........................................................................................................... 18
6.1 Error rates....................................................................................................................... 18
6.1.1 Read errors ........................................................................................................ 18
6.1.2 Environmental interference ................................................................................ 18
6.1.3 Write errors ........................................................................................................ 19
6.1.4 Seek errors ........................................................................................................ 19