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amediratta

2 Intern

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2K Posts

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June 22nd, 2009 08:00

Slow mirroring

One of my customer has online mirroring enabled on a volume with around 1 TB data. He claims that when a file is modified on source, the change gets reflected in the destination in about 2 hours. Is this possible?

If it is a smaller specification, the change gets reflected online.

dramjass

151 Posts

June 22nd, 2009 08:00

This is possible depending on how much data is back-logged int he Kernel Cache/Logs. If there is a large build-up of either of these values, then all that I/O will have to be processed before the change that is being monitored after the 2 hours.

Is the smaller Spec part of the same configuration as the Spec that contains the 1 TB? If so, then what is being claimed is not consistent.

RepliStor does not have different priorities on the Spec's and will process all I/O in a FIFO method. Unless of course the Spec is disabled or set not to Mirror.

Ensure the following:
- Kernel Cache and Logs = 0
- They are using RepliStor 6.3 SP2
- There are no Sync's occurring

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