HP Storage Mirroring Software - Manual (Page 541)

Mirroring Page 540 of 677
File difference mirror options compared
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File Differences—Any file that is different on the source and target based on the
date, time, and/or size is transmitted to the target. The mirror sends the entire file.
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File Differences and Only if Source is Newer—Any file that is newer on the
source than on the target based on date and/or time is transmitted to the target. The
mirror sends the entire file.
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File Differences and Checksum—This option is dependent on the global
checksum all option on the Server Properties source tab.
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Checksum All disabled— Any file that is different on the source and target
based on date, time, and/or size is flagged as different. The mirror then
performs a checksum comparison on the flagged files and only sends those
blocks that are different.
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Checksum All enabled—The mirror performs a checksum comparison on
all files and only sends those blocks that are different.
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File Differences, Only if Source is Newer, and Checksum—Any file that is
newer on the source than on the target based on date and/or time is flagged as
different. The mirror then performs a checksum comparison on the flagged files and
only sends those blocks that are different.