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How to move 1.5TB to ISCSI Drive

Posted on 2011-09-26
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Last Modified: 2012-08-13
Hello there,

I have 1.5TB of data on a IBM LUN that i want to move to an iSCSI Drive, both drive are visible to the server, but, what would be the best and safer way to move this data over???

thanks
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Question by:Tanus Sacin
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kevinhsieh earned 500 total points
ID: 36707945
You should use robocopy or richcopy

Robocopy sourcepath desinationpath /mir /sec /r:w /w:1

You can run it several times to get all the files and changes. I also like to swap drive letters when done to keep all of the shares the same. Reboot when done and the shares will get recreated on the new volume.
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by:Tanus Sacin
ID: 36708900
how long would you think that will take?
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by:PeteEngineer
ID: 36708958
XXCOPY this too in the list
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by:Callandor
ID: 36709373
>how long would you think that will take?

Optimistically, it will take the time running at the hard disk rate of transfer.  Most hard drives will have 70MB/sec sustained throughput, so allowing for overhead, assume 50MB/sec - that works out to 30000 sec, or 8.33 hours.
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by:kevinhsieh
ID: 36710415
It will take a bit of time. You can run robocopy multiple times, and it will only copy over the changed files. Run it once or twice when the volume is active, and then one final time just before you do the cut over. The /mir switch mirrors the destination, so any files that get deleted at the source between runs will also get deleted on the target.
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by:Tanus Sacin
ID: 36893611
running now...
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