Recovering paths, primary to secondary storage system (pair status: PAIR)

Global Active Device for VSP One Block

Version

10.5.x

File Size

25537 KB

Audience

anonymous

Part Number

MK-23VSP1B011-11

ft:lastEdition

2026-06-23

The following figure shows the failure area and recovery when a pair is suspended due to path failure from the primary storage system to the secondary storage system.

Reconnect the physical path or reconfigure the SAN to recover the path failure.
When the path between the storage systems is recovered, the remote path is either automatically recovered or a manual recovery might be required. To verify the remote path status and perform any recommended action, see Troubleshooting related to remote path status. If the remote path failure persists even after following the recommended action, contact customer support.
Confirm the quorum disk status. If the quorum disk is blocked, recover from the blockade. If you do not set a volume for the quorum disk, you can skip this step.

Resynchronize the pair.

Confirm that the P-VOL I/O mode is Local.

pairdisplay -g oraHA -fxce -IH0
Group   PairVol(L/R) (Port#,TID, LU),Seq#,LDEV#.P/S,Status,
Fence,   %,P-LDEV# M CTG JID AP EM       E-Seq# E-LDEV# R/W
oraHA   dev1(L)     (CL1-A-0, 0,   0)811111  2222.P-VOL PSUE 
NEVER ,  100  4444 -   -   0  -  -            -       - L/L
oraHA   dev1(R)     (CL1-C-0, 0,   0)822222  4444.S-VOL PSUE 
NEVER ,  100  2222 -   -   0  -  -            -       - B/B

At the primary storage system, resynchronize the pair.
```
pairresync -g oraHA -IH0
```
If a failure occurs after the one volume capacity of a GAD pair can be expanded, the creation, resync, swap resync, and horctakeover operations of the GAD pair cannot be performed because the capacity of both the volumes is not the same. Make sure to expand the other volume capacity so that the capacity of both the volumes is the same, and then retry the operation.

Confirm that the P-VOL and S-VOL pair statuses change to PAIR (Mirror (RL)).

pairdisplay -g oraHA -fxce -IH0
Group   PairVol(L/R) (Port#,TID, LU),Seq#,LDEV#.P/S,Status,
Fence,   %,P-LDEV# M CTG JID AP EM       E-Seq# E-LDEV# R/W
oraHA   dev1(L)     (CL1-A-0, 0,   0)811111  2222.P-VOL PAIR 
NEVER ,  100  4444 -   -   0  -  -            -       - L/M
oraHA   dev1(R)     (CL1-C-0, 0,   0)822222  4444.S-VOL PAIR 
NEVER ,  100  2222 -   -   0  -  -            -       - L/M

pairdisplay -g oraHA -fxce -IH1
Group   PairVol(L/R) (Port#,TID, LU),Seq#,LDEV#.P/S,Status,
Fence,   %,P-LDEV# M CTG JID AP EM       E-Seq# E-LDEV# R/W
oraHA   dev1(L)     (CL1-C-0, 0,   0)822222  4444.S-VOL PAIR 
NEVER ,  100  2222 -   -   0  -  -            -       - L/M
oraHA   dev1(R)     (CL1-A-0, 0,   0)811111  2222.P-VOL PAIR 
NEVER ,  100  4444 -   -   0  -  -            -       - L/M

Using the multi-path software, resume I/O to the volume that could not be accessed from the server (I/O might resume automatically).