Optional job settings, Using compression – HP Storage Mirroring Software User Manual
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Migration
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Optional job settings
When you are creating a migration job, you will have an opportunity to configure optional
job settings when you get to the Migration summary workflow page. If you want to
configure optional settings, click Configure next to the options section.
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E-mailing target event messages
Using compression
To help reduce the amount of bandwidth needed to transmit Storage Mirroring Data
Migration data, compression allows you to compress data prior to transmitting it across
the network. In a WAN environment this provides optimal use of your network resources.
If compression is enabled, the data is compressed before it is transmitted from the
source. When the target receives the compressed data, it decompresses it and then
writes it to disk.
By default, compression is set to None, which means it is disabled. The compression
levels can be set at Minimum, Medium, or Maximum. Each level requires more
overhead than the previous level of compression. If you notice an impact on performance
while compression is enabled in your environment, either adjust to a lower level of
compression or leave compression disabled.