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Decrease Volume Size

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Last Modified: 2020-10-17
Can I decrease the volume size for some of my windows drives?   I have seen KBs stating both. I am using AWS with Windows Server 2016.  Does it matter if they are MBR or GUID?
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Sr. Systems Engineer
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Just make sure you have a valid backup before trying any of this!
David Johnson, CDSimple Geek from the '70s
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my question is why do you want to change the volume size? The only rationale that I can understand is to add another volume onto the disk. Having multiple volumes on a disk means that the i/o is split between the 2 volumes.  Back in the day when you were limited in the # of physical disks due to hardware limitations I can understand this.

It will not decrease your aws storage costs.
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my question is why do you want to change the volume size? The only rationale that I can understand is to add another volume onto the disk.

Not necessarily

I ran into a issue a year ago where a servers C partition was almost maxed out and the drives second partition (E) had a massive amount of unused space

Freeing up 100G from the E partition and re-allocating it to the C partition resolved the servers issues caused by low disk space
David Johnson, CDSimple Geek from the '70s
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@kenfcamp.. I have no idea why you had 2 volumes on 1 physical disk. This was probably a physical disk in which you were physical drive limited.  The author is using virtual disks (re AWS) which do not have this limitation.
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@David Johnson...  There was no drive limitation, it was a 600G drive as partitioned by dell when they received it

The point I was trying to make, is that there are more reasons to want to expand or shrink a volume other than "adding" another volume

The disk being physical vs virtual is irrelevant
Seth SimmonsLead Systems Administrator
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Commented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: 'Steve Agnew' (https:#a43081594)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

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