HP Surestore Disk Array FC60 HP SureStore E Disk Array 12H User's and Service - Page 271

Write Working Set, The Write Working Set is the number of unique data blocks written

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Glossary WDTR Write Working Set Glossary WDTR (Wide Data Transfer Request) controls whether or not the additional eight bits on a wide bus will be utilized in most data phases of a SCSI command. WDTR also determines the negotiation protocol of the host. If WDTR is enabled, (default) the disk array will initiate for negotiation for wide transfer. If WDTR is disabled, the host will initiate negotiation protocol. In either case, the disk will always respond to any requests made by the host. The Write Working Set is the number of unique data blocks written to the disk array over a period of time. To maintain performance, the write working set should not consistently exceed the amount of RAID 0/1 space available. 271

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Glossary
271
Glossary
WDTR
WDTR (Wide Data Transfer Request) controls whether or not the
additional eight bits on a wide bus will be utilized in most data phases
of a SCSI command. WDTR also determines the negotiation protocol
of the host. If WDTR is enabled, (default) the disk array will initiate for
negotiation for wide transfer. If WDTR is disabled, the host will initiate
negotiation protocol. In either case, the disk will always respond to any
requests made by the host.
Write Working Set
The Write Working Set is the number of unique data blocks written to
the disk array over a period of time. To maintain performance, the write
working set should not consistently exceed the amount of
RAID
0/1
space available.