Powering on the UR secondary storage system

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

Procedure

  1. Power on the UR secondary storage system.

  1. 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.

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

  1. On the primary storage system, resynchronize the UR pairs by specifying the P-VOL.

Command example: pairresync -g oraREMOTE -IH0

  1. 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

PAIR (Mirror(RL))

PAIR (Mirror(RL))

PAIR (Mirror(RL))

PAIR (Mirror(RL))

UR pair

PSUS

PSUS

PAIR

PAIR

UR delta resync pair

PSUE1

SSUS2

PSUE1

SSUS2

Notes:

  1. Device Manager - Storage Navigator displays HOLDING.

  1. Device Manager - Storage Navigator displays HOLD.

  1. 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.