Thin Image host access and pair status
The status of HTI pairs depends on whether the hosts can read from or write to the HTI pair P-VOL or S-VOLs.
The following table explains the host access and pair status.
|
HTI pair status |
P-VOL |
S-VOL |
||
|---|---|---|---|---|
|
Read |
Write |
Read |
Write |
|
|
SMPL |
Yes |
Yes |
No |
No |
|
SMPL(PD) |
Yes |
Yes |
No |
No |
|
COPY |
Yes |
Yes |
No |
No |
|
PAIR/PFUL |
Yes |
Yes |
No |
No |
|
PSUS/PFUS |
Yes |
Yes |
Yes |
Yes |
|
RCPY |
Yes |
Yes |
No |
No |
|
PSUE |
Yes |
Yes |
No |
No |
|
Legend Yes: Hosts can access the volume No: Hosts cannot access the volume |
||||
If a host uses a software application to monitor HTI pair volumes other than HTI, the S-VOL status determines if the software application ends abnormally. For example, if the S-VOLs are in a status other than “PSUS” and “PFUS”, the host can reject access.
If a host connects to at least two ports, an abnormality can occur with ports that are not connected to S-VOLs rejecting access from hosts. To resolve these issues, close the software application that monitors volumes.