MP unit and pair deletion

The unit assigned to an S-VOL cannot be used if a pair is created because the MP unit assigned to the P-VOL is also assigned to the S-VOL. Deleting the pairs returns the allocation of processor responsibility to the state it was before the pairs were created. However, the allocation cannot be returned in either of the following cases:

  • A user changed the allocation of the MP unit for the P-VOL or S-VOL of the SI pair.
  • When the pair is deleted, the write pending rate of the MP unit to which the S-VOL belongs is 50% or more, or the write pending rate of the original unit is 50% or more.
For and , this operation is supported by DKCMAIN program versions 80-05-31-00/00-02, 80-05-47-60/00-02, and 80-05-60-60/02-01 or later. For VSP G200, G400, G600, G800 and VSP F400, F600, F800, DKCMAIN firmware versions 80-04-30-60/00-01, 83-04-48-60/00-02, and 83-04-60-60/01-01 or later.

If the original MP unit is already removed, assign another MP unit.

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