You can change the , and for selected mirrored pairs on your .
When the Synchronous write mode is selected, the on the primary storage array will wait until data has been successfully copied to the secondary storage array before sending and I/O completion back to the system. If the Asynchronous write mode is selected, the RAID controller module on the primary storage array will send an I/O completion to the host system before the data has successfully been copied to the secondary storage array.
Select Virtual Disk >> Remote Virtual Disk Mirroring >> Change >> Write Mode.
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Select one or more mirrored pairs.
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Select one of the following write modes:
Synchronous - This mode offers the best chance of full data from the secondary storage array in the event of a disaster, at the expense of host I/O performance and is the preferred mode of operation.
Asynchronous - This mode offers faster host I/O performance but does not guarantee that data was successfully written to the before indicating a successful write to the host system.
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Select Add to write consistency group check box if you want to ensure that writes to the secondary storage array are completed in the same order as on the primary storage array.
Note: Selecting this option might impact host I/O performance.
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Click Next to continue the mirror creation process.