Powering off the GAD secondary storage system

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

Procedure

  1. Using the alternate path software, stop I/O from servers to the GAD secondary storage system.

Direct server I/O to the primary storage system.

  1. On the primary storage system, resynchronize the GAD pair by specifying the P-VOL.

Command example: pairsplit -g oraHA -IH0

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

Pair type

Before the GAD pair suspension

After the GAD pair suspension

P-VOL

S-VOL

P-VOL

S-VOL

GAD pair

PAIR (Mirror(RL))

PAIR (Mirror(RL))

PSUS (Local)

PSUS (Block)

UR pair

PAIR

PAIR

PAIR

PAIR

UR delta resync pair

PSUS1

SSUS1

PSUE2

SSUS1

Notes:

  1. Device Manager - Storage Navigator displays HOLD.

  1. Device Manager - Storage Navigator displays HOLDING.

  1. Power off the GAD secondary storage system.