In the following figure, an SIz S-VOL also functions as a TCz P-VOL. This configuration requires that the SIz pair is split before the TCz pair is created.
Figure. Shared
SIz S-VOL with
TCz P-VOL
In this configuration, before creating a TCz pair, you must set the SIz in the DUPLEX status, split the SIz pair, and then set it in the Split/SUSPOP status. The following table shows possibilities of TCz pair operations according to the SIz S-VOL status.
| TCz pair operations | SIz S-VOL status | |||||
|---|---|---|---|---|---|---|
|
PENDING PENDING SP-Pend/TRANS Resync/PENDING |
DUPLEX |
V-Split/SUSPVS |
Split/SUSPOP |
Suspend/SUSPER |
Resync-R/REVRSY |
|
| Create | No | No | No | Yes | Yes | No |
| Split P-VOL specified | No | No | No | Yes | Yes | No |
| Split S-VOL specified | No | No | No | Yes | Yes | No |
| Resync P-VOL specified | No | No | No | Yes | No* | No |
| Resync S-VOL specified | No | No | No | No | No | No |
| Delete | Yes | Yes | Yes | Yes | Yes | Yes |
| Switch operations between the primary and secondary sites (horctakeover) | No | No | No | No | No | No |
| * The TCz pair cannot be resynchronized because the content of the SIz S-VOL is not guaranteed. | ||||||