HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Utilities and Exercisers
107HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
C Caching state of the device:
a = Read, writeback, and read-ahead caching enabled.
b = Read and writeback caching enabled.
c = Read and read-ahead caching enabled.
p = Read-ahead caching enabled.
r = Read caching only.
w = Writeback caching enabled.
space = Caching disabled.
Kb/s Average amount of data transferred to and from the unit during the last
update interval in kilobyte increments per second.
Rd% Percentage of data transferred between the host and the unit that was read
from the unit.
Wr% Percentage of data transferred between the host and the unit that was
written to the unit.
Cm% Percentage of data transferred between the host and the unit that was
compared. A compare operation can accompany a read or a write
operation, so this column is not the sum of columns Rd% and Wr%.
Ht% Cache-hit percentage for data transferred between the host and the unit.
Ph% Partial cache hit percentage of data transferred between the host and the
unit.
MS% Cache miss percentage of data transferred between the host and the unit.
Purge Number of blocks purged from the writeback cache during the last update
interval.
BlChd Number of blocks added to the cache during the last update interval.
BlHit Number of cached data blocks hit during the last update interval.
Table 20: VTDPY—Unit Performance Data Fields Column Definitions (Continued)
Column Contents