How can I find out the cluster size on an NTFS disk

[Bo Berglund]

When I format a new disk to NTFS I am being asked for the cluster
size. Usually I set this to 4096 but some disks seem to have different
sizes.
Now I wonder how I can investigate the cluster size property on a
disk? The disk properties say nothing about this....


Bo Berglund
bo.berglund(at)nospam.telia.com

 

[Curt Christianson]

Hi Bo,

See if this helps:
http://support.microsoft.com/kb/314878

 

[DatabaseBen]

When I format a new disk to NTFS I am being asked for the cluster
size. Usually I set this to 4096 but some disks seem to have different
sizes.
Now I wonder how I can investigate the cluster size property on a
disk? The disk properties say nothing about this....


Bo Berglund
bo.berglund(at)nospam.telia.com

 

[DatabaseBen]

if i'm not mistaken you can
simply run chkdsk from a
command window and it
will provide the stats.

 

[Nepatsfan]

When I format a new disk to NTFS I am being asked for the
cluster size. Usually I set this to 4096 but some disks seem
to have different sizes.
Now I wonder how I can investigate the cluster size property
on a disk? The disk properties say nothing about this....


Bo Berglund
bo.berglund(at)nospam.telia.com

From a command prompt (Start -> Run -> cmd.exe), enter the
following,

fsutil fsinfo ntfsinfo C:

Look under "Bytes per cluster". Change the drive letter as
needed.

Good luck

Nepatsfan

 

[Chris May]

| if i'm not mistaken you can
| simply run chkdsk from a
| command window and it
| will provide the stats.

You're correct. That will report the number of bytes per allocation unit. 4096
(4KB) is the max and is the best size to keep fragmenting to a minimum.

ChrisM

 

[Bo Berglund]

From a command prompt (Start -> Run -> cmd.exe), enter the
following,

fsutil fsinfo ntfsinfo C:

Look under "Bytes per cluster". Change the drive letter as
needed.

Thanks,
this was what I was looking for. I just wanted to check that I did not
use too small clusters...


Bo Berglund
bo.berglund(at)nospam.telia.com

 

[Nepatsfan]

Thanks,
this was what I was looking for. I just wanted to check that
I did not use too small clusters...


Bo Berglund
bo.berglund(at)nospam.telia.com

You're welcome.

Nepatsfan