NetApp Snapshots calculation

[1VINAYKUMAR]

Hi Everyone,

I am learning the NetApp Snapshots. going through netapp link https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-AE967C4E-B5D4-4F12-BF33-0CB64C7D9264.html

can anybody explain me with examples. its a bit difficult to understand the %used and %total values.

systemA> snap list vol0

Volume vol0
%/used %/total date name
---------- ---------- ------------ --------
0% ( 0%) 0% ( 0%) Jan 19 08:01 hourly.0
1% ( 1%) 1% ( 1%) Jan 19 00:01 nightly.0
2% ( 2%) 2% ( 2%) Jan 18 20:01 hourly.1
3% ( 2%) 2% ( 2%) Jan 18 16:01 hourly.2
3% ( 2%) 3% ( 2%) Jan 18 12:01 hourly.3
5% ( 3%) 4% ( 3%) Jan 18 00:01 nightly.1
7% ( 4%) 6% ( 4%) Jan 17 00:00 nightly.2
8% ( 4%) 7% ( 4%) Jan 16 00:01 nightly.3
10%( 5%) 9% ( 4%) Jan 15 00:01 nightly.4

regards

Vinay

[JGPSHNTAP]

It has to do with active file system vs snapshot.

you might get a better idea of you do df -Vg vol0 and look at snap reserve

[rwelshman]

you can also run the snap delta command to get some more details of the amount of space being used by each snapshot with relation to the current volume usage.