Quote Originally Posted by Anvil View Post
This is the Control I/O w/MSDA metrics
For those curious about what these MDSA-related metrics reflect:

  • There were 5 MDSA control I/O operations that requested a TRIM

  • The total combined number of "Data Set Ranges (DSR)" specified by these 5 TRIM control I/O operations was 19.

    A DSR identifies the starting offset (i.e., essentially the starting block address for the particular set of blocks/sectors) along with the overall combined length of the blocks/sectors to be "trimmed".

  • The total combined length of the DSRs specified by these 5 TRIM commands was 1,611,800,576 bytes.

  • The smallest DSR length observed amongst all of these DSRs was 4,096 bytes

  • The largest DSR length observed amongst all of these DSRs was 1,610,612,736 bytes

  • The lowest starting address (in bytes) observed amongst all of these DSRs was 1,232,896

  • The highest starting address (in bytes) observed amongst all of these DSRs was 3,180,806,144

  • The minimum total number of DSRs specified by a single TRIM control I/O operation was 1

  • The maximum total number of DSRs specified by a single TRIM control I/O operation was 8

  • The minimum total combined lengths of the DSRs specified by a single TRIM control I/O operation was 53,248 bytes

  • The maximum total combined lengths of the DSRs specified by a single TRIM control I/O operation was 1,610,862,592 bytes