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Delete using Azure Application Consistent Snapshot tool

  • บทความ

This article provides a guide for running the delete command of the Azure Application Consistent Snapshot tool that you can use with Azure NetApp Files.

Introduction

It is possible to delete volume snapshots and database catalog entries with the azacsnap -c delete command.

Important

Snapshots created less than 10 minutes before running this command should not be deleted due to the potential for interference with snapshot replication.

Command options

The -c delete command has the following options:

  • --delete hana when used with the options --dbsid <SID> and --hanabackupid <HANA backup id> will delete entries from the SAP HANA backup catalog matching the criteria.

  • --delete storage when used with the option --snapshot <snapshot name> will delete the snapshot from the back-end storage system.

  • --delete sync when used with options --dbsid <SID> and --hanabackupid <HANA backup id> gets the storage snapshot name from the backup catalog for the <HANA backup id>, and then deletes the entry in the backup catalog and the snapshot from any of the volumes containing the named snapshot.

  • --delete sync when used with options --dbsid <SID> and --snapshot <snapshot name> will check for any entries in the backup catalog for the <snapshot name>, gets the SAP HANA backup ID and deletes both the entry in the backup catalog and the snapshot from any of the volumes containing the named snapshot.

    Important

    In case the anfBackup option is configured in the AzAcSnap JSON configuration file, then for the --snapshot <snapshot name> the volume portion of the snapshot name must not be provided!

  • [--force] (optional) Use with caution. This operation will force deletion without prompting for confirmation.

  • [--configfile <config filename>] is an optional parameter allowing for custom configuration file names.

Delete a snapshot using sync option`

azacsnap -c delete --delete sync --dbsid H80 --hanabackupid 157979797979

Note

Checks for any entries in the backup catalog for the SAP HANA backup ID 157979797979, gets the storage snapshot name and deletes both the entry in the backup catalog and the snapshot from all of the volumes containing the named snapshot.

azacsnap -c delete --delete sync --dbsid H80 --snapshot hana_hourly.2020-01-22_2358

Note

Checks for any entries in the backup catalog for the snapshot named hana_hourly.2020-01-22_2358, gets the SAP HANA backup ID and deletes both the entry in the backup catalog and the snapshot from any of the volumes containing the named snapshot.

Delete a snapshot using hana option`

azacsnap -c delete --delete hana --dbsid H80 --hanabackupid 157979797979

Note

Deletes the SAP HANA backup ID 157979797979 from the backup catalog for SID H80.

Delete a snapshot using storage option`

azacsnap -c delete --delete storage --snapshot hana_hourly.2020-01-22_2358

Note

Deletes the snapshot from any volumes containing snapshot named hana_hourly.2020-01-22_2358.

Output using the --delete storage option

The user is asked to confirm the deletion.

azacsnap -c delete --delete storage --snapshot azacsnap-hsr-ha.2020-07-02T221702.2535255Z

Processing delete request for snapshot 'azacsnap-hsr-ha.2020-07-02T221702.2535255Z'.
Are you sure you want to permanently delete the snapshot 'azacsnap-hsr-ha.2020-07-02T221702.2535255Z' from all storage volumes.? (y/n) [n]: y
Snapshot deletion completed

It is possible to avoid user confirmation, by using the optional --force parameter as follows:

azacsnap -c delete --delete storage --snapshot azacsnap-hsr-ha.2020-07-02T222201.4988618Z --force

Processing delete request for snapshot 'azacsnap-hsr-ha.2020-07-02T222201.4988618Z'.
Snapshot deletion completed

Next steps