Different volume size in "df -Vh" and "vol size" output

DHAKSHINAMOORTHY_B — Thu, 05 Jun 2025 05:39:57 GMT

Hi All,

df -Vh and vol size output showing different sizes in one of our DB Server volume which is in snapmirror. Please find the below output, let me know why this difference came.

Filer2> df -Vh DBVOLUME

Filesystem total used avail capacity Mounted on

/vol/DBVOLUME/ 2805GB 2162GB 642GB 77% /vol/DBVOLUME/

/vol/DBVOLUME/.snapshot 0MB 320MB 0MB ---% /vol/DBVOLUME/.snapshot

Filer2>

Filer2> vol size DBVOLUME

Warning: Volume 'DBVOLUME' has fs_size_fixed option set. The file system

size may differ from the volume size.

See 'vol status -b' for more detail.

vol size: Flexible volume 'DBVOLUME' has size 4806g.

Filer2>

Filer2> vol options DBVOLUME

nosnap=off, nosnapdir=off, minra=off, no_atime_update=off, nvfail=off,

ignore_inconsistent=off, snapmirrored=on, create_ucode=off,

convert_ucode=off, maxdirsize=45875, schedsnapname=ordinal,

fs_size_fixed=on, guarantee=none, svo_enable=off, svo_checksum=off,

svo_allow_rman=off, svo_reject_errors=off, no_i2p=off,

fractional_reserve=0, extent=off, try_first=volume_grow,

read_realloc=off, snapshot_clone_dependency=off, dlog_hole_reserve=off

Filer2>

Re: Different volume size in "df -Vh" and "vol size" output

JGPSHNTAP — Mon, 24 Mar 2014 12:20:22 GMT

it's a snapmirror target, do vol size on source

Re: Different volume size in "df -Vh" and "vol size" output

martin_fisher — Mon, 24 Mar 2014 17:00:04 GMT

The volume is a snapmirror destination, so as JGPSHNTAP has suggested, run the commands on your source volume.

the 'vol size' command will return the size of the volume, where as the 'df' (disk free) will return info regarding space utilization.

A volume can be hugely oversized, when compared to the totals reported using df.

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Different volume size in "df -Vh" and "vol size" output

Re: Different volume size in "df -Vh" and "vol size" output

Re: Different volume size in "df -Vh" and "vol size" output