Managing individual snapshots

Snapshot Administration Guide for Hitachi NAS Platform

Version
15.1.x
Audience
anonymous
Part Number
MK-92HNAS011-29
  1. Navigate to Home > Data Protection > Snapshots to display the Snapshots page.


    Field/Item Description
    EVS / File system Label Displays the current source EVS or file system for the snapshot.
    change Enables you to selects a different EVS or file system.
    Filter Filters the snapshot list. The following creation reasons are available:
    • Manually displays snapshots created manually.
    • By Rule displays snapshots created by snapshot rules.
    • For Backup and File-based Replication displays snapshots as part of the backup process.
    • By Volume Shadow Copy Service displays snapshots initiated by VSS.
    • By Object Replication displays snapshots created by the Object Replication feature.
    • By Application displays snapshots created by API applications.

    You can also filter by a specific snapshot name and/or a date creation range.

    Note: Any snapshots created for reasons other than those in the categories above are not listed in NAS Manager. To view these snapshots, use the snapshot-list CLI command.
    Name The name of the snapshot. The name can be up to 255 characters and cannot include any spaces or special characters except for asterisks which can be used as wildcards to match any characters.
    File system The source file system for the snapshot.
    Creation Time The time and date the snapshot was created.
    Retention If the snapshot is retained, the date when its retention will expire.
    Creation reason Displays the snapshot creation method. You can create snapshots by using the methods described in the Filter field.
    Freeable Space Click Show size to display the amount of disk space released when the snapshot is deleted (this is supported only on file systems that use block-based snapshots). Click Refresh size to update the value.
    Take a snapshot Opens the Take a snapshot page in which you can create a snapshot manually.
    delete Removes a selected snapshot.
    rename Enter a new name in the Rename Snapshot text field, and then click rename. Note that you can only rename snapshots that are created manually and not those created By Rule.
    update retention Enter a retention interval and click update retention. Note that once set, the retention interval cannot be unset or decreased.
    Snapshot Rules Opens the Snapshot Rules page. To schedule snapshots, you must first create a rule.
    Snapshot Schedules Opens the Snapshot Schedules page in which you can set a time schedule for creating snapshots.
  2. In the EVS/file system section, click change to select a specific file system and display a list of snapshots.
  3. In the Filter section, select the appropriate check boxes to filter the snapshots that you want to display, and then click filter.
    Snapshot filters allow you to limit which snapshots are displayed based on your selection of the reasons or mechanisms that can cause snapshots to be created. Select one or more of the following:
    • Manually to display snapshots created manually.
    • By Rule to display snapshots created by snapshot rules.
    • For Backup to display snapshots as a part of the backup process.
    • By VSS to display snapshots initiated by VSS (the Microsoft Volume Shadow Copy Service).
  4. Manage the snapshots:
    • Delete an individual snapshot by selecting it, and then clicking delete.
      Note: Snapshots initiated by the Microsoft Volume Shadow Copy Service (VSS) should be managed through the application that requested the snapshot. You can, however, delete these snapshots in the Snapshots page.
    • Delete all snapshots by selecting Check all, and then clicking delete.
      Note: If you delete a retained snapshot then it will still be shown on the Snapshots page until its retention expires.
    • Rename an individual snapshot by selecting it, entering the new name in the Rename Snapshot text field, and then clicking rename.
    • Take a new snapshot by clicking Take a Snapshot to display the Take a snapshot page.


      The following table describes the fields on this page:

      Field/Item Description
      change Select an EVS or file system.
      Name The name of the snapshot. The name can be up to 255 characters and cannot include any spaces or special characters.
      Retention Select the checkbox and provide a retention interval. Note that once set, the retention interval cannot be unset or decreased.
      OK Takes the snapshot.

      Enter a name for the snapshot (up to 255 characters with no spaces or special characters). Optionally, select a retention interval for the snapshot. Note that once set, the retention interval cannot be unset or decreased. Click OK to take the snapshot.

      Note: Users with permission can also take spontaneous rule-associated snapshot, without waiting for the next scheduled time. This can be done from the command line interface.