topic Re: Used / Free Space difference between LUN (in Oncommand System Manager) and Host (Local Drive) in ONTAP Discussions

Used / Free Space difference between LUN (in Oncommand System Manager) and Host (Local Drive)

SIVAKUMAR03 — Thu, 05 Jun 2025 06:06:42 GMT

Please find the below details.

In Server, LUN mbs_sql_snap Volume Details Local Driver G:

The Same LUN ,While Checking from OnCommand Manager shows different.

Please advise .

Re: Used / Free Space difference between LUN (in Oncommand System Manager) and Host (Local Drive)

superderivatives — Thu, 28 Mar 2013 10:18:16 GMT

Hi,

This is because the lun see gigabyte as 1000 megabytes, rather than 1024 like windows reads it, as well as The file system (format of the hard drive; NTFS, Fat32) itself takes up space too.

if you want to get a disk size of 70GB, you need to create a netapp lun of size: 70x1024: 71680MB

good luck

Ariel

Re: Used / Free Space difference between LUN (in Oncommand System Manager) and Host (Local Drive)

SIVAKUMAR03 — Thu, 28 Mar 2013 10:33:10 GMT

Please go thru complete snap shot , Problem is

Host : Local Driver G: ( Lun /mbs_sql_snap) Free Space is 62.7 GB Avalibale

But in On command System Manager

Same Lun : /mbs_sql_snap : Free Space is 1.6 GB Avalibale

why same LUN shows different figure.?