Physical Reallocation of a SnapMirror source volume increases the amount of data to transfer for the next SnapMirror update.

• A. True
• B. False
• C. NA
• D. NA

Answer: (B)

SnapMirror updates send only the blocks that have changed since the last transfer. A physical reallocation on the source volume rearranges where blocks live but does not by itself change the actual data content. Because the delta is based on data changes, not on block moves, reallocation does not increase the amount of data to transfer for the next update. Only if the reallocation results in blocks being rewritten with new data would those blocks be transferred as part of the delta.