Obtaining performance information about individual journals

Virtual Storage Platform One SDS Block and SDS Cloud Virtual Private Storage Administration

Version
1.19.x
Audience
anonymous
Part Number
MK-24VSP1SDS028-03
ft:lastEdition
2026-04-20

The following information can be obtained for a journal with the specified ID.

  • id: Journal ID (uuid)

  • vpsId: ID of a VPS to which a journal belongs

  • writeIOPS: The number of write I/Os per second from hosts to P-VOLs that belong to a master journal [IOPS]

  • writeTransferRate: The amount of write data transfer per second from hosts to P-VOLs that belong to a master journal [MiB/sec]

  • initialCopyHitRate: Cache hit rate for read requests for P-VOLs (that belong to a master journal) due to initial copy [%]

  • initialCopyTransferRate: The amount of journal data transfer per second due to initial copy [MiB/sec]

  • masterJournalRIOPS: The number of read journal commands per second responded [IOPS]

  • masterJournalCount: The number of journal data transfers performed per second

  • masterJournalTransferRate: The amount of journal data transfer per second [MiB/sec]

  • masterJournalRIOResponseTime: Average time from when a read journal command is received to when response is sent [msec]

  • masterJournalDataUsageRate: Journal data usage of a master journal volume [%]

  • masterJournalMetaDataUsageRate: Metadata usage of a master journal volume [%]

  • remoteJournalRIOPS: The number of read journal commands per second issued [IOPS]

  • remoteJournalCount: The number of journal data receptions per second

  • remoteJournalTransferRate: The amount of journal data received per second [MiB/sec]

  • remoteJournalRIOResponseTime: Average time from when a read journal command is sent to when response is received

  • remoteJournalDataUsageRate: Journal data usage of a restore journal volume [%]

  • remoteJournalMetaDataUsageRate: Metadata usage of a restore journal volume [%]

  • Required role: VpsStorage or VpsMonitor

  1. Verify the ID of the journal for which you want to obtain performance information.

    If you want to specify a journal by its number in the CLI, verify the journal number.

    REST API: GET /v1/objects/journals

    CLI: journal_list

  2. Obtain performance information.

    Run either of the following commands with the journal ID specified.

    If you use the CLI, you can specify the journal number instead of its ID.

    REST API (low-resolution): GET /v1/objects/performances/journals/<id>

    REST API (high-resolution): GET /v1/objects/detail-performances/journals/<id>

    CLI (low-resolution): journal_performance_show

    CLI (high-resolution): journal_detail_performance_show