Resynchronizing Thin Image Advanced pairs to delete snapshot data

Thin Image Advanced User Guide

Version
9.8.6
Audience
anonymous
Part Number
MK-98RD9033-00

You can resynchronize Thin Image Advanced pairs that you have split or that the storage system has suspended.

A maximum of 1,024 snapshots can be stored for one P-VOL. If you want to store more snapshots for the P-VOL that already reached this limit, you need to delete old snapshots.

  • You must have the Storage Administrator (Local Copy) role.
  • Thin Image Advanced pairs must be in the PSUS status or PSUE status.

Resynchronizing pairs using CCI commands

The following is an example of deleting snapshot data for the P-VOL (LDEV number 10:10) of MU number 10:

raidcom modify snapshot -ldev_id 0x1010 -mirror_id 10
-snapshot_data resync

The following is an example of deleting snapshot data for the S-VOL (LDEV number 20:10):

raidcom modify snapshot -ldev_id 0x2010 -snapshot_data resync

The following is an example of deleting snapshot data for all P-VOLs in the snapshot group (db1):

raidcom modify snapshot -snapshotgroup db1 -snapshot_data resync

Resynchronizing pairs using HDvM - SN

  1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.
  2. In the Local Replication window, select a P-VOL in the TI Root Volumes tab or a snapshot group in the Snapshot Groups tab.
  3. Click Operate TI Pairs.
  4. In the TI Pairs window, select the pair you want to resynchronize, and then click Resync Pairs.
    You can specify P-VOLs in Device Manager - Storage Navigator until the total number of snapshots reaches 32,768. You can also specify snapshot groups until the total number of pairs reaches 32,768. For cascaded pairs with layers, start with pairs at the lower layers.
  5. For Resync Type, select Normal Copy (Primary > Secondary) for full forward resynchronization of data from the P-VOL to the S-VOL.
  6. Click Finish, and then confirm the settings.
  7. Accept the default task name or enter a unique name.
    You can enter up to 32 letters, numbers, and symbols, except the following:

    \ / : , ; * ? " < > |

  8. If you want to monitor the task after submitting it, select Go to tasks window for status.
  9. Click Apply to submit the task.
The Thin Image pair is resynchronized ("PAIR" status).