Legacy HDS Forums

Cache perfomance statistics

Discussion created by Legacy HDS Forums on Jan 23, 2007
Latest reply on Jun 19, 2007 by Legacy HDS Forums

Originally posted by: igrigor



Hi!
I've following statistics from Hitachi 9570
==============
---- Cache Information ----
CTL Write Pending Rate(%)
  0                     3
  1                     1
CTL Clean Queue Usage Rate(%) Middle Queue Usage Rate(%) Physical Queue Usage Rate(%) Total Queue Usage Rate(%)
  0                        97                          2                            1                       100
  1                        38                          0                            0                        39
==============
I don't understand what does "Clean Queue Usage Rate(%)" mean?
I've found in "Resource Manager User?s Guide" that it is rate of clean cache usage. Is it mean that ca?he on the CTL0 fully used? And if it so how 9750 could be turned?
Thank you.

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