Vmware ESXi backup

I inherited a network that has 1 ESXi 5.0 host (w/local storage) and no backups. The local datastore has a capacity of 7TB and 4.5TB is being used.

I was thinking about going with Veaam and a NAS. Any recommendations for NAS and storage size?
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Cobra25Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
A Qnap unit, with as many disks as you can afford, 10 bays if possible.

The more spindles, the faster the unit.
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Zephyr ICTConnect With a Mentor Cloud ArchitectCommented:
I can highly recommend Synology for NAS ... You can get the model that can be built into a rack if needed, a few of my customers use it for backup as well, but they have all kinds of models, they even can be used to connect to your VMware unit using iSCSI or NFS.

Recommendation for storage size is somewhat depended on how you will backup, how long the retention will be, kind of backup, deduplication ratio, etc ... I'd start with at a minimum of maybe 5TB and leave room for expansion, some of the Synology devices allow for expansion (e.g the model 1813+)... (I'd give you links but I'm working with a very old browser because of company policy and can't get on the website)...
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would also recommend the Synology or Qnap range of NAS, and purchase a 10 bay version. (disk).
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Cobra25Author Commented:
You know i was thinking about it. Since i only have 1 host (and there is already a vmotion license) maybe i should just purchase another host and a SAN for shared storage and also stick the backups on there?
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
It's usually recommend to make your backups to a NAS, not on your SAN.

If your VMs and Backups are on the same shared storage e.g. SAN, it's a single point of failure.

SAN goes down, and all your backups are also gone.
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Cobra25Author Commented:
Thanks for the tips guys.

Andrew - any specific QNAP models you recommend?
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Cobra25Author Commented:
What RAID setup should i go with? In case i want to expand storage down the line? Anything else i should look for in a NAS?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
That depends on if you want performance, maximum storage or resillience.

RAID 5, or RAID 6
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Cobra25Author Commented:
i am thinking about this one, (i want to stay under 2k)

http://www.amazon.com/gp/product/B008TTNW5E/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A15EHDQVYNLON8

Let me know your thoughts.
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Cobra25Author Commented:
Also going for RAID-10 config.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
RAID 10 will give the maxium performance, but the trade off, is storage space.

8 Bay Qnaps are fine,
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