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User56
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Minimum free Space on vsphere Host for B+R Backup?

Post by User56 » Jun 20, 2019 2:36 pm

Hello,

Client have Veeam B+R Version 8 with vsphere 6.5
vSphere Host has only 100 GB free and I need 40 GB to add to a Virtual Mashine

Do you think there could haben a collision /escalation? (when backup is starting?)

I know that official recommendation is 20-25% free space.

New Server is arriving within the next month.

thx, best regards

vijayG
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Re: Minimum free Space on vsphere Host for B+R Backup?

Post by vijayG » Jun 20, 2019 2:40 pm

if you don't have enough space on Datastore, Veeam Backups will not happen.
recommended free space is 20% on host

vmJoe
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Re: Minimum free Space on vsphere Host for B+R Backup?

Post by vmJoe » Jun 20, 2019 2:45 pm

There needs to free space large enough to hold a VMDK(s) snapshot during a backup and maintain any growth of the snapshot during a backup cycle.

If a snapshot fills up a datastore, all VMs running on that datastore will stop functioning properly.

I have seen customers not keep a lot of free space on a datastore and Veeam still backups VMDKs on that datastore with now issue because none of the VMs were large, or highly transactional. If you VMs are highly transactional I recommend leaving that 20% free space on them.
Joe Gremillion
NA Core Solutions Architect - Central region

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