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Normaly in a truecopy replication state we see different codes telling us teh health of the pairs. Here are the most common ones. Don't forget that P-VOL represents the primary volume (the one being replicated) and the S-VOL represents the secondary volume (the one replicating to).
TrueCopy states
| Code | State | Details | Replicating | S-VOL state |
|---|---|---|---|---|
| SMPL | simplex | This volume is not part of any replications relationships. The host can access the volume | No | Read-Write |
| PAIR | paired | This volume has finished synchronization and it's in a relationship active. | Active | Read Only |
| COPY | copying | This volume is performing the initial copy operation. | In progress | Read Only |
| PSUS | Pair Suspended-Split | The volume is split | NO but resumable | N/A |
| SSUS | Secondary Suspended-Split | The S-VOL is accesible to the host for read or read/write operations | NO but resumable | R/W if pairsplit done with -rw |
| PSUE | Pair suspend - error | The pair is in a error state and not replicating | NO but restartable (will start from 0% again) | Read Only |
| PSUF | Pair Full Sidefile | Pair is split due to a sidefile full. | NO but restartable (will start from 0% again) | Read Only |
| PDUB | ???? | When using LUSE volumes this code tells you that one of the LDEVs within the LUSE has failed. | NO but restartable (will start from 0% again) | Read Only |
| SSWS | Secondary suspended With Swap for failover. | - |
Here are the status states for paircreate/pairsplit and parresync
| Status | Paircreate Copy | Paircreate Nocopy | Pairsplit -r or -rw | Pairsplit -P | Pairsplit -S | Pairresync |
|---|---|---|---|---|---|---|
| SMPL | Accepted | Accepted | Rejected | Rejected | Acceptable | Rejected |
| COPY | Acceptable | Acceptable | Accepted | Rejected. | Accepted | Acceptable |
| PAIR | Acceptable | Acceptable | Accepted | Accepted | Accepted | Acceptable |
| PSUS | Rejected | Rejected | Acceptable | Acceptable | Accepted | Accepted |
| PSUE | Rejected | Rejected | Rejected | Rejected | Accepted | Accepted |
| PDUB | Rejected | Rejected | Rejected | Rejected | Accepted | Accepted |
Here is the manual for replication if you want to read more about it. - http://www.hds.com/assets/pdf/cci-user-and-reference-guide.pdf
