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тАО02-04-2009 07:25 AM
тАО02-04-2009 07:25 AM
EVA used sapce
Is there a way of understanding how much space is actually being used on a vdisk as opposed to allocated? I know I could go to the server and try and work this figure out but just wondered if there was a trick to working that out from the EVA perspective.
Thanks in advance,
Mike
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тАО02-04-2009 07:32 AM
тАО02-04-2009 07:32 AM
Re: EVA used sapce
As you write and delete files, most blocks will have some data on it, even if it belongs to a deleted file, the EVA does not know that.
The EVA does not read the MFT, or whatever table the OS uses to keep track of which files are active and which are deleted.
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тАО02-04-2009 08:04 AM
тАО02-04-2009 08:04 AM
Re: EVA used sapce
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тАО02-04-2009 09:54 AM
тАО02-04-2009 09:54 AM
Re: EVA used sapce
As far as I can tell, the EVA (which shares no development history with the VA7000) does track it, too, in order to optimize CA + BC replication (never-written areas do not get 'copied'), but this information is not accessible (at least by the end-user).
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тАО02-04-2009 01:05 PM
тАО02-04-2009 01:05 PM