We have two systems and their flexscale output is given below. System with the low hit percentage is a very busy system with Network shares, Exchange 2010 and VMware on it. I am seeing very low hit percentage for flexcache and want to know if this should be a concern.

 

 

 

System with high usage but very low hit percentage

 

Cache                                               Reads       Writes      Disk Reads

Usage    Hit   Meta   Miss Hit Evict Inval Insert Chain Blocks Chain Blocks  Replaced

     %     /s     /s     /s   %    /s    /s     /s    /s     /s    /s     /s        /s

    94   1455    806  18651   7   272    46   2359   932   1371    36   2349       932

    94   2652   1403  17888  12   473   879   3867  1606   2229    60   3880      1606

    94   1522    655  17594   7   313   863   2454   859   1435    38   2451       859

    94   2174   1105  17942  10   291     8   2805  1266   1992    43   2808      1266

    94   1823    828  17224   9   267    92   2169   936   1724    33   2160       936

    94   1447    632  17515   7   361 12392   2851   752   1273    44   2847       752

 

 

System with high usage and also high hit percentage

 

Cache                                               Reads       Writes      Disk Reads

Usage    Hit   Meta   Miss Hit Evict Inval Insert Chain Blocks Chain Blocks  Replaced

     %     /s     /s     /s   %    /s    /s     /s    /s     /s    /s     /s        /s

    97     94      4      5  94     0     0      0    20     93     0      0        20

    97    126     25     13  90     0     0      2    45    126     0      0        45

    97     57      3      8  87     0     0      0    12     57     0      0        12

    97    356    300     35  90     0     0      0   309    356     0      0       309

    97    224     38     19  91     1     0     24    63    224     0     31        63

    97     92     10     13  87     0     0      0    27     92     0      0        27

    97    151     68     14  91    44     0   1387    82    150    21   1376        82

 

Mustafa

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