Sharing Thin Image volumes with TrueCopy and Universal Replicator
You can share HTI P-VOLs with TC and UR pair volumes. The following tables list the relationship between pair tasks and status.
The following table shows the HTI tasks when the P-VOL is shared with a TC or UR P-VOL.
|
HTI task |
TC/UR status |
|||||
|---|---|---|---|---|---|---|
|
COPY |
PAIR |
PSUS |
PSUE |
Suspending |
Deleting |
|
|
Create pair |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Store snapshot data |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Restore pair |
No |
No |
Yes |
Yes |
No |
No |
|
Delete snapshot data |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Delete pair |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Legend Yes: You can perform the task No: You cannot perform the task (the command is rejected) |
||||||
The following table shows the HTI tasks when the P-VOL is shared with a TC or UR S-VOL.
|
HTI task |
TC/UR status |
||||||
|---|---|---|---|---|---|---|---|
|
COPY |
PAIR |
PSUS |
PSUE |
SSWS |
Suspending |
Deleting |
|
|
Create pair |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Store snapshot data |
No |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Restore pair* |
No |
No |
No |
No |
No |
No |
No |
|
Delete snapshot data |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Delete pair |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
*When restoring an HTI pair and you are using the P-VOL as a TC or UR S-VOL, switch tasks to the remote storage system using the following command: horctakeover Legend Yes: You can perform the task No: You cannot perform the task (the command is rejected) |
|||||||
The following table shows the TC/UR tasks when the HTI P-VOL is shared with a TC/UR P-VOL.
|
TC/UR task |
HTI status |
||||
|---|---|---|---|---|---|
|
COPY |
PAIR, PFUL |
PSUS, PFUS |
RCPY |
PSUE |
|
|
Create pair |
Yes |
Yes |
Yes |
No |
Yes |
|
Split pair |
Yes |
Yes |
Yes |
N/A |
Yes |
|
Resynchronize pair |
Yes |
Yes |
Yes |
No |
Yes |
|
Delete pair |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Switch to remote storage |
Yes |
Yes |
Yes |
No |
Yes |
|
Legend Yes: You can perform the task No: You cannot perform the task (the command is rejected) N/A: Not applicable Remote storage: Remote storage system |
|||||
The following table shows the TC/UR tasks when the HTI P-VOL is shared with a TC/UR S-VOL.
|
TC/UR task |
HTI status |
||||
|---|---|---|---|---|---|
|
COPY |
PAIR, PFUL |
PSUS, PFUS |
RCPY |
PSUE |
|
|
Create pair |
No |
No |
No |
No |
No |
|
Split pair |
Yes |
Yes |
Yes |
N/A |
Yes |
|
Resynchronize pair |
Yes |
Yes |
Yes |
N/A |
Yes |
|
Delete pair |
Yes |
Yes |
Yes |
N/A |
Yes |
|
Switch to remote storage |
Yes |
Yes |
Yes |
N/A |
Yes |
|
*Use a TC/UR S-VOL as an HTI P-VOL. Legend Yes: You can perform the task No: You cannot perform the task (the command is rejected) N/A: Not applicable |
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