HP StorageWorks 12000 - Virtual Library System EVA Gateway User Manual page 227
Hp storageworks 12000 gateway virtual library system user guide (ah814-96014, march 2010)
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Also See for StorageWorks 12000 - Virtual Library System EVA Gateway:
- User manual (264 pages) ,
- Manual (218 pages) ,
- Design manual (160 pages)
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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
227
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