FAS and V-Series Storage Systems Discussions

lun space bigger than parent volume

aborras

Hi guys,

 

I'm a little bit confused about how ontap manage space. I have been testing man things and a strange thing ocurred. Here it is:

 

- Create a volume: 50 GB (vol_A)

- Create a LUN: 10 GB (lun_1 --> Parent volume is 'vol_A') using SnapDrive and add to Cluster Shared Volumes.

 

For now everything is okay. I can see in OnCommand System Manager that the volume available space is 40 GB.

 

The problem comes when I copy some file in that LUN (5 GB file for example). When I go back to OnCommand System Manager I see that the volume available space is 42, 43 or 44 GB (it's not exactly everytime). Then If I expand the LUN using SnapDrive the maximum size of the LUN that I can expand is 54 GB ----- (10 GB LUN + volume available space)...

 

Could you help me?

 

It's annoying because I don't have the control of the real space.

 

Thank you very much,

0 REPLIES 0
Announcements
NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner
Public