Free space on datastore.

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Re: Free space on datastore.

Veeam Logoby Shestakov » Wed Feb 15, 2017 4:55 pm

Hi Nick,
by default VBR alarms you when datastore has less than 10% of free space. I would suggest to increase datastore so you have 15-20% left.
Do you use Veeam ONE? It has a number of capacity planning reports which help to estimate the needed amount based on the performance trends.
Thanks!
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Re: Free space on datastore.

Veeam Logoby westinbuilding » Wed Feb 15, 2017 6:11 pm

Hi Shestakov, thanks for the quick reply.

No, we do not have Veeam ONE.

I did increase datastore capacity...let's see what happens...
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Re: Free space on datastore.

Veeam Logoby Vitaliy S. » Wed Feb 15, 2017 8:07 pm 1 person likes this post

Break/fix approach can certainly help here, but using a proactive approach in monitoring your infrastructure would be a preferred way, especially when Veeam Availability Suite has Veeam ONE license key included > Predefined Veeam ONE Reports, Predefined Veeam ONE Dashboards and Data Protection Monitoring.

Just my 2 cents.
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Re: Free space on datastore.

Veeam Logoby micahvm » Fri Feb 17, 2017 7:54 pm

When I upgraded to 9.5 I started receiving warnings on a number of my virtual machines because Veeam detected the amount of free space being less than 10%. I decreased that to 5% and a lot of the warnings went away, but not all of them. My recommendation would be to add an option so that I can select either a percentage or an amount of actual disk space remaining (it was previously 10 GB). So if I have a very large datastore, say greater than 1 TB, I don't need to have a significant amount of disk space available just so I don't get a warning from Veeam.

My biggest concern is that if this warning is always happening, it will be ignored, which then defeats the purpose of having a warning.

I did open case #02066626 and they said the best way to get the developers to look into this is to post it on the forums.
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Re: Free space on datastore.

Veeam Logoby Shestakov » Sat Feb 18, 2017 4:51 pm

Hello Miach,
I believe the idea is to keep VBR UI from monitoring options overloading. If you have Veeam ONE you may adjust the alarms for every datastore.
Thanks
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Re: Free space on datastore.

Veeam Logoby Gostev » Sat Feb 18, 2017 5:45 pm

micahvm wrote: I decreased that to 5% and a lot of the warnings went away, but not all of them.

10% is the official VMware best practice. If you don't care to follow them - you could simply reduce this value to whatever makes sense to you, potentially even down to 1% (which is by an order of magnitude smaller than the best practice)? In fact, setting this value to 1% will let you get warnings at 10GB for a 1TB datastore - just as you had this configured previously.
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Re: Free space on datastore.

Veeam Logoby micahvm » Mon Feb 20, 2017 2:25 pm

Gostev wrote:10% is the official VMware best practice.


Is there a reason that this was changed from 10GB in version 9.0 to 10% in version 9.5?
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Re: Free space on datastore.

Veeam Logoby foggy » Mon Feb 20, 2017 3:04 pm

The primary reason, I believe, it was adjusted with VMware best practice. 10% is much more flexible than the fixed threshold, considering variety of environment sizes (10 GB of free space is way too low for a multi-TB production datastore holding large VMs).
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[MERGED] Minimum required space to perform a backup

Veeam Logoby klemeste » Wed May 31, 2017 1:27 pm

Hi

I'm currently managing to migrate from Veeam 7 to Veeam 9.5.
I've deployed a second Veeam 9.5 infrastructure next to my existing v7 one and I'm migrating step by step all my jobs.

I've got an issue with one VM: it consists in a VMDK 1,95TB hosted in a 2TB datastore.
Despite the low space potentially used for snapshots, the Veeam 7 job performs successfully (the night during minimal usage to limit snapshot size) but on Veeam 9.5:
31/05/2017 03:16:05 :: Production datastore XXXXX is getting low on free space (46.8 GB left), and may run out of free disk space completely due to open snapshots.

How is calculated this minimum requirement? Has it evolved since Veeam 7? Can I bypass this control?

Thank you in advance
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Re: Free space on datastore.

Veeam Logoby foggy » Wed May 31, 2017 3:39 pm

Stephan, please review the considerations above, should answer your questions.
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[MERGED] Veeam backup Error unsufficient free disk

Veeam Logoby gaj » Fri Jul 21, 2017 1:27 pm

Hello,

I have this message when i run a backup “Production drive D:\ getting low on free space (199,2 GB left), and may run out free disk space completely due to open snapshots”
D: disk there are 724 GB free, I don't understand why job is not running .

Image
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Re: Veem backup Error unsufficient free disk

Veeam Logoby DGrinev » Fri Jul 21, 2017 2:07 pm

Hi Jack and welcome to the community!

It seems you went below 10% of free disk space which is minimum by the best practices of VMware.
Please review this thread for additional information. Thanks!
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Re: Free space on datastore.

Veeam Logoby gaj » Fri Jul 21, 2017 2:37 pm

Hi DGrinev,

i don't use vmware and my vm backup is 127 GB and i have 724 GB free dis, i don't understand, can you give me the best parameter .
thanks
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Re: Free space on datastore.

Veeam Logoby gaj » Fri Jul 21, 2017 2:40 pm

i don't know where is tools>option, i have only General options

veeam-backup-replication-f2/change-threshold-for-low-disk-space-t2907.html
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Re: Free space on datastore.

Veeam Logoby DGrinev » Mon Jul 24, 2017 11:55 am

Hi Jack,

You can find it in General Options -> Notifications -> Skip VM processing when free disk space is below, by lowering this parameter the job should start processing.
However, I'd recommend you to contact the support team and let them take a look on the issue with the disk space. Thanks!
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