Notifications on production datastores (feature req v9.5)

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Notifications on production datastores (feature req v9.5)

Veeam Logoby ljverschuren » Wed Nov 23, 2016 3:06 pm

With version 9.5 for VMware vSphere, the Notifications on free disk space have been changed from a setting in absolute GB's to a percentage. Since we use rather big datastores (5-10TB) the default percentage level is generating a lot of warnings on free space, while having enough. It would be great if this could be set again to absolute GB's (or having the choice in either percentage of absolute value)?

Anyone recognizing this change?
ljverschuren
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Re: Notifications on production datastores (feature req v9.5

Veeam Logoby Shestakov » Wed Nov 23, 2016 3:25 pm

Hello,
indeed the option has been changed from GBs to %, but it`s a configurable value.
You may calculate the needed percentage and set the parameter.
Thanks!
Shestakov
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Re: Notifications on production datastores (feature req v9.5

Veeam Logoby ljverschuren » Wed Nov 23, 2016 3:46 pm

Hi,

Off course you can calculate, but setting a value to for example 2% is ok for a 10TB datastore, but for a 50GB datastore it is not. Having a mixed environment with various datastore sizes I would prefer an absolute value for this setting.
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Re: Notifications on production datastores (feature req v9.5

Veeam Logoby Gostev » Wed Nov 23, 2016 4:37 pm

Well, it's exactly the opposite actually. Percent value works much better for environments with varying datastore size due to its dynamic nature (larger datastores tend to have more and larger VMs, which will consume free space much faster during backup). Using percent value was driven by the customer feedback and VMware best practices, and based on multiple "production down" situations we have been observing in support in the past years due to using the absolute warning amount.

Remember that VMware explicitly recommends keeping 10% of datastore capacity available to accommodate VM snapshots (instead of recommending some absolute amount regardless of datastore size). In fact, this recommendation is exactly where the default 10% warning-threshold comes from.

That said, the absolute stop-threshold value is still available as before, using the same old registry key (see What's New in 9.5 for details). You can use this to protect those tiny datastores from overfilling if you choose to set your warning-threshold % to a very low value.
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Re: Notifications on production datastores (feature req v9.5

Veeam Logoby Shestakov » Wed Nov 23, 2016 5:31 pm

To get more flexibility can also use Veeam ONE alarms if you have the full Veeam Availability Suite.
Thanks!
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