The following table shows the pair status that is reported for different combinations of shared volumes.
|
Number of TCz pairs |
Number of SIz S-VOLs |
Pair status |
|---|---|---|
|
0 |
0 |
It does not display in pair list. |
|
0 |
1 |
SIz pair status |
|
0 |
2 or more |
SIz pair status for the S-VOL with lowest LDEV ID. |
|
1 |
0 |
TCz pair status |
|
1 |
1 |
TCz pair status |
|
1 |
2 or more |
TCz pair status |
- TCz pair status is reported to the host if you query the TCz P-VOL or S-VOL. To obtain the SIz pair status, query the SIz P-VOL pair.
- SIz supports multiple S-VOLs for each of its P-VOLs, but when you issue a pair status query, the status is returned only for the pair whose S-VOL has the lowest LDEV ID. To check pair status for the other S-VOLs, direct a host query to the specific S-VOL using the S-VOL's LDEV ID in the raidcom get local_copy_pair command.
SIz displays the status of all S-VOLs.
The following table shows when data is current on a shared TCz/SIz volume based on the pair statuses.
|
TCz pair status |
SIz pair status |
|||||||
|---|---|---|---|---|---|---|---|---|
|
Pending |
Duplex |
Split/ SUSPOP Pending |
V-Split/SUSPVS |
Split/SUSPOP |
Resync/Pending |
Resync-R/REVRSY |
Suspend/SUSPER |
|
|
Pending |
Not Current |
Not Current |
Not Current |
Not Current |
Current |
Not Current |
- |
Not Current |
|
Duplex |
Not Current |
Not Current |
Not Current |
Not Current |
Current |
Not Current |
- |
Not Current |
|
- Suspend (Secondary Volume by Operator) - Suspend |
Not Current |
Current |
Current |
Current |
Current |
Current |
Current |
Not Current |