topic Re: How to enable the space guarantee for SAN volume? I am not using snapshot for that volume also the fractional reserve is set to 100. in Network and Storage Protocols

How to enable the space guarantee for SAN volume? I am not using snapshot for that volume also the fractional reserve is set to 100.

SIP006174 — Thu, 05 Jun 2025 07:15:59 GMT

I have 2.4 TB aggr with 3 volumes.

volume1 is 1 TB with 300 GB free space with 700 GB actual data.

volume 2 is 1 TB ONLY 58 GB FREE SPACE WITH JUST 650 GB ACTUAL DATA (where is the reamining space)the space guarantee shows "volume-disbaled" for this volume

volume 3 is 400 GB with 50 GB free space with 300 GB actual data.

Please see the PIC for more details

Re: How to enable the space guarantee for SAN volume? I am not using snapshot for that volume also the fractional reserve is set to 100.

radek_kubka — Tue, 06 Apr 2010 14:14:11 GMT

Hi,

There could be a number of reasons for this behaviour, most of them associated with the aggregate running out of space.

Try typing "volume guarantee disabled" in the search field on NOW & you will get links to a number of Knowledgebase Articles.

In particular these two seems to be helpful:

https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb10092 (if you are on ONTAP prior to 7.3)

https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb38514 (if you just upgraded to 7.3)

Regards,
Radek

Re: How to enable the space guarantee for SAN volume? I am not using snapshot for that volume also the fractional reserve is set to 100.

ogra — Tue, 06 Apr 2010 14:16:28 GMT

Hi,

Do you want to enable space reservation ?

if yes, you can simply type : vol options <vol-name> guarantee=volume

Can you say, what kind of data is inside volume 2. As I can read it properly, you are wondering where has the space gone ?

Can you describe it better ?

Re: How to enable the space guarantee for SAN volume? I am not using snapshot for that volume also the fractional reserve is set to 100.

SIP006174 — Wed, 07 Apr 2010 05:31:21 GMT

I have already set the guarantee option to VOLUME. But it shows disabled.

Its an one TB volume with 825 GB of LUN ( No space reservation) inside.

Now i am working in the below link to find out solution for my problem

Please go through attached doc to get the situtauion in detail...

Aggregate 'aggr1'

Total space WAFL reserve Snap reserve Usable space BSR NVLOG A-SIS

2921GB 292GB 131GB 2498GB 0KB 262GB

Space allocated to volumes in the aggregate

Volume Allocated Used Guarantee

vmvolume00 1029GB 563GB volume

vmvolume01 731GB 726GB volume(disabled)

vmvolume02 402GB 172GB volume

Aggregate Allocated Used Avail

Total space 2163GB 1461GB 72GB

Snap reserve 131GB 15GB 116GB

WAFL reserve 292GB 30GB 261GB