Increasing VSS shadow copy space

I need to increase the VSS shadow copy space to unlimited in a server with three drives - C,E and X
C (44GB free of 195GB),
E (351GB free of 1.14TB)
X (285GB free of 488GB)

According to Microsoft Technet, this is the syntax I need to use
vssadmin resize shadowstorage /for=<ForVolumeSpec> /on=<OnVolumeSpec> [/maxsize=<MaxSizeSpec>]

So is this the correct syntax for my C, E and X drives?

vssadmin resize shadowstorage /for=C: /on=C: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=C: /on=E: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=C: /on=x: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=E: /on=E: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=E: /on=C: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=E: /on=X: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=X: /on=X: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=X: /on=C: [/maxsize=<UNBOUNDED>]
vssadmin resize shadowstorage /for=X: /on=E: [/maxsize=<UNBOUNDED>]
DonKwizoteAsked:
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kevinhsiehCommented:
I believe that each volume can use shadow storage on only a single volume. It looks like you are trying to store shadow copies for C: on C:, D:. and X:. I believe that you need to pick only one destination for shadow copies for each drive. For example, you could do this, which would place the shadow copies for each volume on a different volume, which is best practice.

vssadmin resize shadowstorage /for=C: /on=x: /maxsize=<UNBOUNDED>
vssadmin resize shadowstorage /for=E: /on=C: /maxsize=<UNBOUNDED>
vssadmin resize shadowstorage /for=X: /on=E: /maxsize=<UNBOUNDED>

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DonKwizoteAuthor Commented:
Hi,
I get this message now

C:\Users\srvadmin>vssadmin resize shadowstorage /for=C: /on=x: /maxsize=UNBOUNDED
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.

Error: The specified volume shadow copy storage association was not found.


C:\Users\srvadmin>vssadmin resize shadowstorage /for=E: /on=C: /maxsize=UNBOUNDED
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.

Error: The specified volume shadow copy storage association was not found.


C:\Users\srvadmin>vssadmin resize shadowstorage /for=X: /on=E: /maxsize=UNBOUNDED
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.

Error: The specified volume shadow copy storage association was not found.
DonKwizoteAuthor Commented:
I was getting the error because volume shadow copying was not enabled
DonKwizoteAuthor Commented:
Thanks
DonKwizoteAuthor Commented:
Thanks
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Windows Server 2008

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