NTFS logical drive "wrong" size

[Neil Truby]

XP Home with all recent fixpacks etc:

I had a 20GByte IDE drive, which had a 10GByte Windows partition and a
10GByte Linux partition. Knowing that even the whole 20 would not survive my
kids' SIMS games for more than a month or two, I bought a 60GByte disk.

I used Ghost to copy the contents of the old disk to the new. I ended up
with a 50GByte Windows NTFS partition and my 10GByte Linux one. Since I have
now installed Linux on another server I no longer need that partition, so I
used some freeware (Disk Partitioner) to remove the Linux partition and
resize the Windows one.

This has all worked fine: Disk Partitioner and other, similar freeware all
show a single 60GByte partition. But the "Properties" section of My Computer
on XP shows my logical drive C as still only 50GByte in size - the size it
was at the completion of the Ghost procedure. Even then, it shows the
correct 60GByte size for the physical disk.

Two questions:
- I'm interested to know the reason for the discrepancy - presumably the
size of the logical drive C is stored somewhere on the VTOC and was updated
by Ghost but by my subsequent machinations.
- Can I "fix" it without redoing the Ghost copy, this time as a
partition-to-partition copy?

thanks
Neil

 

[K. Graham Clarke [MSFT]]

Well, since we don't have access to Ghost or Disk Partitioner or other
similar 3rd party products, like Partition Magic, we are not entirely sure
what they do with the master boot record and partition tables. However, if
you were to go into the built-in disk manager, you may be able to gleam some
more information.

At the Start\Run box, type "diskmgmt.msc" without quotes, and it will load.
From here, you can create, delete and format partitions-- both primary and
extended (in which logical drives may be created). So, you could try
deleting and creating a new partition and then copying data from within
Windows Explorer. Or, you may find that there is room to create another
logical drive in the same extended drive (i.e., there may be unpartitioned
drive space).

--
Have a great day!

Graham, MCSE²+I, MCSA
Microsoft Corporation Exchange Enterprise Messaging

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[Neil Truby]

Thanks.
Even diskmgmt.msc shows Drive 0 as a sinle partition ("C:") of 55Gbytes, but
Volume (C) as 45Gbytes. There is therefore no unpartitioned space upon
which another volume/logical drive could be created.

It's not really a problem I guess, I just have 10 lost Gigs I can't use, and
I'd like to understand why the discrepancy.

cheers
Neil