Legacy HDS Forums

AMS500 - high CPU usage

Discussion created by Legacy HDS Forums on Jul 2, 2009
Latest reply on Aug 14, 2009 by Legacy HDS Forums

Originally posted by: przemolb



Hello,

For quite long time I can see during some parts of the day high CPU usage on our AMS500. These
are peaks usually:
[code]
---- Processor Information ----
CTL Usage(%)
  0        91
[/code]
Is it possible to see why it is so high ?

Additional info:
[code]
---- Cache Information ----
CTL Write Pending Rate(%)
  0                          4
CTL Clean Queue Usage Rate(%) Middle Queue Usage Rate(%) Physical Queue Usage Rate(%) Total Queue Usage Rate(%)
  0                              96                                1                                   3                            100
CTL Partition Write Pending Rate(%)
  0           0                          4
CTL Partition Clean Queue Usage Rate(%) Middle Queue Usage Rate(%) Physical Queue Usage Rate(%)
  0           0                              96                                1                                   3
[/code]

[code]
---- Port Information ----
CTL  Port          IO Rate(IOPS)       Read Rate(IOPS)      Write Rate(IOPS) Read Hit(%) Write Hit(%)     Trans. Rate(MB/S) Read Trans. Rate(MB/S) Write Trans. Rate(MB/S)
  0      A                     1359                      495                      864            89            100                       13                           5                            7
  0      B                         0                         0                         0             0               0                         0                           0                            0
CTL  Port        Read CMD Count       Write CMD Count   Read CMD Hit Count  Write CMD Hit Count Read Trans. Size(MB) Write Trans. Size(MB)
  0      A                    29221                    50998                    26107                    50995                      315                       463
  0      B                         0                         0                         0                         0                         0                          0
[/code]

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