HP XP P9500 Storage - Manual (Page 46)

Auto LUN
The following table shows when Continuous Access Synchronous volumes may be used as Auto
LUN volumes.
Used as Auto LUN volume? Volume/pair status
No P-VOL/S-VOL in COPY status
Yes P-VOL/S-VOL in PAIR status
Yes P-VOL/S-VOL in PSUS status
Restrictions
The following restrictions must be followed when a Continuous Access Synchronous volume in PAIR
status is used as a Auto LUN volume:
•
Set I/O rates less than 50 IOPS while migrating volumes; if more than 50 IOPS, volumes may
not be migrated.
•
If a data path failure occurs, remove the failure then migrate the volume.
•
If an external volume or a THP V-VOL is used, information from before the volume is migrated
displays in the secondary system Remote Web Console window. If the Auto LUN is completed
and the Continuous Access Synchronous pair is split and resynchronized, the volume’s
information is updated.
•
Do not migrate P-VOL and S-VOL at the same time, or a host I/O timeout will occur.
•
Do not change the status of a volume during migration; the status may not change.
46 Sharing Continuous Access Synchronous volumes