HP XP P9500 Storage - Manual (Page 33)

Item on right side of Monitor
Data: field Item on left side of Monitor
Data: field Item on right side of Object:
field Item on left side of Object:
field
Write (Sequential)
Write (Random)
Write (CFW)
Read (Total) Cache Hit (%) None Parity Group
Read (Sequential)
Read (Random)
Read (CFW)
Write (Total)
Write (Sequential)
Write (Random)
Write (CFW)
Read (Total) Cache Hit (%) None LUN
Read (Sequential)
Read (Random)
Read (CFW)
Write (Total)
Write (Sequential)
Write (Random)
Write (CFW)
Back-end performance
Function
The back-end transfer can be monitored. The back-end transfer is the number of data transfers
between the cache memory and the hard disk drive. The graph contains following information.
•
Cache to Drive
The number of data transfers from the cache memory to hard disk drives.
•
Drive to Cache Sequential
The number of data transfers from hard disk drives to the cache memory in sequential access
mode
•
Drive to Cache Random
The number of data transfers from hard disk drives to the cache memory in random access
mode
Storing period
Short-Range can be specified.
Back-end performance 33