Powering on the GAD secondary storage system

Use the following procedure to power on the GAD secondary storage system in a GAD 3DC delta resync environment.

Procedure

  1. Power on the GAD secondary storage system.

  2. Confirm that the primary and secondary storage systems and the external storage system for the quorum disk do not have any blocked parts.

    If any parts are blocked, recover them.

  3. Check for SIMs about path blockage, and delete the SIMs.

  4. On the primary storage system, resynchronize the GAD pairs by specifying the P-VOL.

    Command example: pairresync -g oraHA -IH0

  5. Confirm that the pair statuses are changed as shown in the following table.

    Pair type

    Before the GAD pair resync

    After the GAD pair resync

    P-VOL

    S-VOL

    P-VOL

    S-VOL

    GAD pair

    PSUS (Local)

    PSUS (Block)

    PAIR (Mirror(RL))

    PAIR (Mirror(RL))

    UR pair

    PAIR

    PAIR

    PAIR

    PAIR

    UR delta resync pair

    PSUE1

    SSUS2

    PSUE1

    SSUS2

    Notes:

    1. Device Manager - Storage Navigator displays HOLDING.
    2. Device Manager - Storage Navigator displays HOLD.

  6. Keep updating I/O to P-VOL or GAD S-VOL for two minutes.

    The information on the system configuration is reported among the primary, GAD secondary, and UR secondary storage systems. At the time, the UR delta resync pair status is changed from PSUE to PSUS. The mirror status of the journal is displayed as PJNS. Confirm that no failure SIMs are displayed.
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