HP StorageWorks Storage Mirroring for Virtual Infrastructure user's guide (T2558-96086, February 2008)

18
Set data transmission options
You can modify the data transmission options in order to make them more suitable for your environment.
Click the
Change button in the Data Transmission area. The Set data transmission options window will appear.
You can change the snapshot data compression settings in the
Compression area. The following options are
available:
•
Never—(Default) No compression will be applied to the data.
•
Only during the initial synchronization—Data will be compressed only during the initial transmission of the
flat virtual disk files.
•
Always—All transmissions associated with the protection set will be compressed.
NOTE: Enabling compression requires that additional CPU cycles be used on both the source and
target servers.
In the Frequency area, select the time and file size thresholds that will trigger data transmission.
•
Transmit when the changes reach this size (MB)—(Default = 32 MB x the number of virtual disks) Enter the size
of snapshot file (in MB) that will trigger a transmission from the source to the target. When multiple virtual
disks are used, any combination of writes across all virtual disk that accumulate to this size will trigger
replication. The minimum size allowed is 32 MB.
•
Transmit data, regardless of size, after—(Default = 15 minutes) Enter a time value and unit that will trigger a
transmission from the source to the target. The minimum time allowed is 5 minutes.
In the
Target route area, enter the IP address on the target server to which you want to send data.