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Flash Pool の読み取りヒット率は、空の読み取りで増加します キャッシュ

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ontap-9
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perf<a>2008737702</a>
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環境

ONTAP 9.x

問題

statistics cache flash-pool show コマンドを実行すると、 Read Hit は増加していますが、の値は Read Blocks 0のままです。

Cluster01::> statistics cache flash-pool show -vserver svm1 -volume svm1_vol1 -iterations 0

Cluster01 : 4/19/2021 14:46:07
                        Read Write                
                        Hit  Hit *Cache  Read Write      
Aggregate      Vserver      Volume    (%)  (%)   Used Blocks Blocks Rejects 
--------------- ------------- ------------------ ---- ----- ------ ------ ------ ------- 
aggr1        svm1        svm1_vol1   0    0 506487    0 506487     0 
aggr1        svm1        svm1_vol1   0    0 506487    0 506487     0 
aggr1        svm1        svm1_vol1   0    0 506487    0 506487     0 
aggr1        svm1        svm1_vol1   0   94 507341    0 507341     0 
aggr1        svm1        svm1_vol1   0   96 514427    0 514427     0 
aggr1        svm1        svm1_vol1   4  97 519434    0 519434     0 
aggr1        svm1        svm1_vol1   6  96 526175    0 526175     0 
aggr1        svm1        svm1_vol1   9  97 542611    0 542611     0 
aggr1        svm1        svm1_vol1  12  97 550465    0 550465     0 
aggr1        svm1        svm1_vol1  14  97 557711    0 557711     0 
aggr1        svm1        svm1_vol1  18  97 561643    0 561643     0 
aggr1        svm1        svm1_vol1  21  96 568404    0 568404     0 
aggr1        svm1        svm1_vol1  24  97 575522    0 575522     0 
aggr1        svm1        svm1_vol1  24  97 589007    0 589007     0 
.......

 

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