HP StorageWorks 6000 - Virtual Library System User Manual page 315

Hp storageworks 6000-series virtual library system user guide (ah809-96038, march 2010)
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Symptom
VLS performance is being reduced
by frequent tape drive polling.
Possible causes
Windows Removable Storage
Manager service (RSM) polls tape
drives on a frequent basis—every
three seconds in Microsoft Win-
dows 2000, and every second in
Windows Server 2003. Windows'
built-in backup software (NT-
BACKUP) relies on the RSM polling
to detect media changes in the tape
drive. In SAN configurations, this
RSM polling can have a significant
negative impact on tape drive per-
formance. For SAN configurations,
HP strongly recommends disabling
RSM polling.
Solution
HP StorageWorks
315

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