Pair Condition And Recovery: Full Pool For The P-Vol - Hitachi G1000 User Manual

c
.
6 Using the alternate path software, add an alternate path from the server
.
to the S-VOL.
7 Using the alternate path software, resume I/O from the server to the S-
.
VOL.
Note that I/Os from the server might be resumed automatically.
Related topics
• I/O modes on page 1-12
• Failure locations on page 6-3
• SIMs related to GAD on page 6-6

Pair condition and recovery: full pool for the P-VOL

Due to a full pool of the P-VOL, a failure that is a GAD pair suspended occurs.
The following table shows the transitions for pair status and I/O mode, the
volumes that are accessible from the server, and the location of the latest
data when you can no longer use the P-VOL due to full pool.
Before failure
Pair status and I/O
P-VOL
PAIR (Mirror
(RL))
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
Note: To create the pair specifying the P-VOL, specify the actual LDEV
ID (device name) of the P-VOL in the -d option of the paircreate
command.
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
oraHA dev1(L)
NEVER , 100 4444 -
oraHA dev1(R)
NEVER , 100 2222 -
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
oraHA dev1(L)
NEVER , 100 2222 -
oraHA dev1(R)
NEVER , 100 4444 -
Pair status and I/O
mode
S-VOL
PAIR (Mirror PSUE
(RL)) (Block)
Disaster recovery of global-active device
(CL1-A-0, 0, 0)311111
- 0 - -
(CL1-C-0, 0, 0)322222
- 0 - -
(CL1-C-0, 0, 0)322222
- 0 - -
(CL1-A-0, 0, 0)311111
- 0 - -
After failure
mode
1
P-VOL
S-VOL
SSWS
(Local)
E-Seq# E-LDEV# R/W
2222.P-VOL PAIR
- - L/M
4444.S-VOL PAIR
- - L/M
E-Seq# E-LDEV# R/W
4444.S-VOL PAIR
- - L/M
2222.P-VOL PAIR
- - L/M
Volume
Volume
accessible from
with latest
the server
P-VOL S-VOL
NG OK S-VOL
data
6-19