Maximum number of ISCSI LUNs in an Scaleout Repository

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Re: Maximum number of ISCSI LUNs in an Scaleout Repository

Veeam Logoby WinstonWolf » Thu Aug 18, 2016 6:46 am

Thank you .
We use an HP DL380 G7 with 2 x E5645 Intel Processors ( 24 Logical Processors ) and 144 GB RAM and an HP 10Gbit Network Adapter connected to the Netapp FAS .
I think this Server has enough Power ;-)
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Re: Maximum number of ISCSI LUNs in an Scaleout Repository

Veeam Logoby WinstonWolf » Thu Aug 18, 2016 6:53 am

But one Question, why you choose the "Data Locality Policy" and not the "Performance Policy" ?
The other Reason for the "Peformance Policy" will be the Place for our File Server Backup which can be in the Future Bigger than an 16TB of one single Repository from the Scale Out Repository .
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Re: Maximum number of ISCSI LUNs in an Scaleout Repository

Veeam Logoby dellock6 » Thu Aug 18, 2016 7:26 am

hi.
First, the server should be good for managing that storage, it all depends on the number of concurrent jobs you will run, but in general it has a lot of horse-power.

About the policy, the main reason as explained is that the underlying array is always the same, so it doesn't make any different to split backup files of a chain over multiple volumes, as the overall I/O will always be the same. You are only increasing the failure domain to two volumes with no performance benefit.

In regards to the size of a vm, again the policy doesn't affect this, in order to store a VM in a volume, when using per-vm chains the single vbk file has to be smaller than the volume. Counting an average 50% reduction, the VM can be as big as around 30 TB. But even with performance a single vbk is NOT splitted among volumes.
Luca Dell'Oca
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