Report detail description

SRS performance report: IO load per SVC/Storwize system, pool and storage system

This report is covering average IO rate (IO/s) aggregated by volumes or MDisks, grouped by SVC/Storwize system, pool or storage system.
Objective: Overview about load and performance.

Reported objects

Object nameDescription

SVC/Storwize system

Single SVC cluster

Pool

Group of managed disks (MDisk group)

Volume

Virtual volume defined in SVC cluster

Storage System

Backend controller below SVC/Storwize system

Reported attributes

ColumnDescription

IO rate

Average virtual volume workload sum of an object
* Sum of most current longterm_IOR of associated SVC VDisk objects
* longterm_IOR has a default averaging interval of 7 days
* Metric: IO/s (IO operations per second)

R%

Percentage of read operations

R size

Transaction size of read operations

W size

Transaction size of write operations

R cache hit

Percentage of cache hits for read operations

R latency

Latency of read operations

W latency

Latency of write operations


Shows: per selected cluster:

  • Volume performance per SVC/Storwize system

    • Average IO load of volumes per SVC/Storwize system

    • Average IO load of the top 20 IO loaded volumes

    • SVC system volume performance trend

      • Average R&W IO rate and latency

      • Maximum R or W latency per IO

  • MDisk performance per SVC/Storwize system

    • Average IO load of MDisks per SVC/Storwize system

    • SVC system " svc1 " MDisk performance trend

      • Average R&W IO rate and latency

      • Maximum R or W latency per IO

  • MDisk performance per SVC Pool

    • Average IO load of MDisks per SVC Pool

    • Chart: Average R&W IO rate and latency

    • Chart: Maximum R or W latency per IO

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