Recovering from a failure (LDEV blockade) that occurred during phase 4 on the P-VOL of the operating source GAD 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
  1. Verify that the host path from the host to the S-VOL of the temporary GAD pair that is the P-VOL of the target GAD pair is online.
  2. Verify that the pair status (I/O mode) of the S-VOL of the temporary GAD pair is SSWS(Local).
    Command example:
    pairdisplay –g oraHA01 –fcxe –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
    QM DM P PR
    oraHA01 dev01(L) (CL1-C-0, 0, 0)411111 1111.P-VOL PSUE
    NEVER , 100 1111 - - 1 1 - - - B/B - D
    N D
    oraHA01 dev01(R) (CL1-C-0, 0, 0)833333 1111.S-VOL SSWS
    NEVER , 55 1111 - - 1 1 - - - L/L - D
    N D
    
    If the pair status is PAIR(Mirror(RL)), issue an update I/O to the S-VOL of the temporary GAD pair.
  3. Wait until the copy operation for the target GAD pair is complete, and then verify that the pair status has changed to PAIR.
    Command example:
    pairdisplay –g oraHA02 –fcxe –IH2
    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
    QM DM P PR
    oraHA02 dev02(L) (CL1-C-0, 0, 0)833333 1111.P-VOL PAIR
    NEVER , 100 2222 - - 2 1 - - - L/M - D
    N D
    oraHA02 dev02(R) (CL1-C-0, 0, 0)844444 2222.S-VOL PAIR
    NEVER , 100 1111 - - 2 1 - - - L/M - D
    N D
    
  4. Continue data migration by performing the procedure described in Deleting the source GAD pair and the temporary GAD pair for data migration.