FBWF and left free space

[Stefanie Niefer]

Hi there,

I'm going to expierience the new fbwf. There is some stange behavior:

My drive C: has a partition of about 807MB.

Without FBWF enabled, I got 723 MB used, and 84 MB free, and a total
of 807 MB. That's fine so far.
But if I enable FBWF, then I got about 721 MB used, and 126 MB free.
Wich is a total of about 848 MB.
I checked it by rightclicking of my first volume (C.

However, Disk Management says, that my partition is still 807 MB.

So it is a little bit strange for me, that I should become more free
space on my drives, when I use FBWF.

I'm using normal NTLDR and disabled all EWF-Components. Also I'm using
uncompressed NTFS. FBWF is configured with 128 MB not pre allocated
Memory.

Can anyone explain that?

Thanks a lot,
Steffi

 

[archilea]

Hi there,

I'm going to expierience the new fbwf. There is some stange behavior:

My drive C: has a partition of about 807MB.

Without FBWF enabled, I got 723 MB used, and 84 MB free, and a total
of 807 MB. That's fine so far.
But if I enable FBWF, then I got about 721 MB used, and 126 MB free.
Wich is a total of about 848 MB.
I checked it by rightclicking of my first volume (C.

However, Disk Management says, that my partition is still 807 MB.

So it is a little bit strange for me, that I should become more free
space on my drives, when I use FBWF.

I'm using normal NTLDR and disabled all EWF-Components. Also I'm using
uncompressed NTFS. FBWF is configured with 128 MB not pre allocated
Memory.

Can anyone explain that?

Thanks a lot,
Steffi

Steffi,

Perhaps you have FBWF compression enabled, and it is reporting based
upon it's expected compression ratio?

If you enter fbwfmgr /displayconfig it should tell you what the
current value of the compression setting is.

 

[Milong Sabandith [MS]]

FBWF works in a Virtual mode.

The space remaining is equal to your cache remaining.
So in your case, you have a cache of 128MB. You are consuming 2 MB and so
have 126MB free.

The total disk size is going to reflect that fact that your cache effectily
increases your capacity.

In Feature Preview 2008, we added a new mode Actual.
The total diskspace and remaining will reflect actual disk numbers.

-milong

 

[Stefanie Niefer]

Hi Milong,

In Feature Preview 2008, we added a new mode Actual.
The total diskspace and remaining will reflect actual disk numbers.

I think I understood. Well, the problem I see is, that I got enough
space left on my cf card, to hold a file with about 200MB. I define a
write through folder, but the file cannot be copied, because there is
not enough space left, since fbwf is configured to 128MB only.
However, it should work, if I'm going to copy that file into a write
through defined folder, wich actually will result in that not enough
space error.

So I'm going to test fp2008 in ctp. Thanks for that information!

Steffi