Recovering at the source UR secondary site, a UR S-VOL failure (LDEV blockade) that occurs when data is being migrated “during migration”

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 table below shows the changes in the pair status before and after a failure.

Pair type Pair status before failure Pair status after failure
P-VOL S-VOL P-VOL S-VOL
GAD pair COPY (Local) COPY (Block) COPY (Local) COPY (Block)
Source UR pair PAIR PAIR PSUE1 PSUE1
Note:
  1. The pair status when a UR pair that uses the volume on which a failure occurred accepts the I/Os from the servers. If the error level of the UR pair is set to Mirror, all UR pairs belonging to the mirror are in this pair status.

When recovering from this failure, you must recover the volume at the source UR secondary site, and then recreate a source UR pair because I/Os from the servers and remote copy operations continue at the source UR site even after the failure occurs.



  1. Delete the source UR pair that uses the failed volume. 
    pairsplit -g oraUR00 -d dev00 -S -IH1
  2. Remove the failure on the UR S-VOL at the source UR secondary site, and then recover the S-VOL (Format the S-VOL if the formatting is required for the recovery).
  3. Suspend the GAD pair sharing the same volumes with a source UR pair that uses the failed volume by specifying the P-VOL, and then delete the pair. 
    pairsplit -g oraHA00 -d dev10 -IH1
pairsplit -g oraHA00 -d dev10 -S -IH1
  4. Resynchronize the source UR pair if the source UR pair is suspended. 
    pairresync -g oraUR00 -IH1
  5. From the source UR primary site, recreate a source UR pair that uses the volume recovered from the failure. 
    paircreate -g oraUR00 -d dev00 -f async -vl -jp 0 -js 0 -IH1
  6. Confirm that the UR pair status has changed to PAIR.
  7. From the source UR primary site, recreate a GAD pair sharing the same volumes with a source UR pair recovered from the failure. 
    paircreate -g oraUR00 -d dev10 -f never -vl -jp 0 -IH1