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HP XP P9500 Storage User Manual

Page 10

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Though the volumes are paired (DUPLEX status), data in the P-VOL and S-VOLs may not be the
same because update copying occurs asynchronously, and therefore later data exists in the P-VOL.
You can ensure that P-VOL and S-VOLs data are the same at a certain point in time, by splitting
pair.

Also, data in the P-VOL and the data in the S-VOL may not be the same if a copy operation is
completed without host I/O. As mentioned above, the P-VOL and S-VOLs can be made the same
by splitting the pair.

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