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Copying files from a compressed drive to an uncompressed drive

Posted on 2011-03-03
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Last Modified: 2012-05-11
We have a client that we just started working with. Soon into the relationship we notcied that they compressed a partition or "drive" on their server because they were running out of room. We are now replacing their server with a much larger server and we are not compressing the drives...

We are migrating from a Server 2003 box with a RAID 1 with NTFS partitions to a SBS 2011 box with a RAID 5 for the data drive.

Will the files that were on the compressed partition decompress when moving them to the new server? Has anyone seen any issues come up with files like Quickbooks or other DB files?
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Question by:ITnavigators
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by:David
ID: 35033539
As long as you copy the files via standard copy, robocopy, file manager, ftp, etc ... then they will automatically do what you hope they will do.

If, however you were writing pass-through logic that read raw physical blocks from the disk, then you WOULD get compressed data.
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David earned 2000 total points
ID: 35033545
(I am assuming that we are talking the native windows compressed volume API, and not some 3rd-party file compression software that works on a volume level)
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by:ITnavigators
ID: 35033564
Yes native Windows. That answers my question. Thank you! Have you heard of issues with Quickbooks fatafiles or other DB's having problems after being copied to a non-compressed drive?
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by:David
ID: 35034034
No, but this is how I deal with such things ... compress the files into .zip, gz, or whatever format you prefer.  Send it compressed.  Not only will it transfer faster, but if there is any data corruption, then you'll find out when you see an error message after trying to unzip it.   Can't beat that !
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