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Displaying I/O statistics information

 To display I/O statistics information

• Use the vxstorage_stats command with the -s option to display I/O statistics information:

  $ /opt/VRTSdbed/bin/vxstorage_stats -s -f file_name

  For example:

  $ /opt/VRTSdbed/bin/vxstorage_stats -s -f \

  /data/system01.dbf

  Output similar to the following is displayed:

I/O OPERATIONS I/O BLOCKS(512 byte) AVG TIME(ms)

OBJECT READ WRITE B_READ B_WRITE AVG_RD AVG_WR

/data/system01.dbf 2 2479 8 5068810 0.00 53.28

/dev/vx/rdsk/mydb/myindex 101 2497 1592 5069056 12.18 52.78

vxvm:mydb/myindex-01 101 2497 1592 5069056 12.18 52.76

/dev/rdsk/c3t1d3s3 131 1656 2096 1689696 14.43 39.09

c3t1d3 131 1656 2096 1689696 14.43 39.09

EMC000184502242:02:0c:02 8480 231019 275952 23296162 - -

EMC000184502242:31:0c:02 3244 232131 54808 23451325 - -

/dev/rdsk/c3t1d15s4 0 1652 0 1689606 0.00 46.47

c3t1d15 0 1652 0 1689606 0.00 46.47

EMC000184502242:01:0c:02 23824 1188997 1038336 32407727 - -

EMC000184502242:32:0c:02 5085 852384 135672 29956179 - -

/dev/rdsk/c3t1d2s4 14 1668 200 1689834 18.57 34.19

c3t1d2 14 1668 200 1689834 18.57 34.19

EMC000184502242:16:0c:02 4406 271155 121368 23463948 - -

EMC000184502242:17:0c:02 3290 269281 55432 23304619 - -

 To display storage mapping and I/O statistics information at repeated intervals

• Use the vxstorage_stats command with the -i interval and -c count options. The -i interval option specifies the interval frequency for displaying updated I/O statistics and the -c count option specifies the number of times to display statistics:

  $ /opt/VRTSdbed/bin/vxstorage_stats [-m] [-s] \

  [-i interval -c count ] -f file_name

  For example, type the following command to display statistics two times with a time interval of two seconds:

  $ /opt/VRTSdbed/bin/vxstorage_stats -s -i2 -c2 \

  -f /data/system01.dbf

  Output similar to the following is displayed:

I/O OPERATIONS I/O BLOCKS(512 byte) AVG TIME(ms)

OBJECT READ WRITE B_READ B_WRITE AVG_RD AVG_WR

/oradata/system01.dbf 11917 13102 95336 594402 2.84 278.81

/dev/vx/rdsk/ramdg/oradata 11959 14729 105839 704811 3.11 295.20

vxvm:ramdg/oradata-01 11947 14729 107783 704799 3.14 295.23

/dev/rhdisk13 5974 8366 53663 352207 2.95 246.65

EMC000184502242:02:0c:01 5 733 320 49897 - -

EMC000184502242:31:0c:01 1 1230 8 174752 - -

/dev/rhdisk41 4705 8249 73526 339740 6.01 250.18

EMC000184502242:02:0c:01 5 733 320 49897 - -

EMC000184502242:31:0c:01 1 1230 8 174752 - -

/dev/rhdisk14 3895 6264 91672 295491 11.49 279.42

EMC000184502242:01:0d:01 0 0 0 0 - -

EMC000184502242:32:0d:01 1 1336 8 190456 - -

/dev/rhdisk42 4407 4840 119576 116696 13.12 287.46

EMC000184502242:01:0d:01 0 0 0 0 - -

EMC000184502242:32:0d:01 1 1336 8 190456 - -