Data Protection Manager VMware ESXi
For the 0.5 Tb appliance you’ll need 850Gb of space, for the 1Tb appliance you’ll need 1.57Tb of space, and for the 2TB you’ll need 3.02TB of space.
Here is an example which can be found in the VDP 5.1 Admin Guide – and I strongly recommend to download this file from VMware vSphere Data Protection page.
There is limit (I imagine that it’s soft limit, which can be tweaked throug a conf. file) of a a number of VMs that can be backed up by single VDP appliance. VDP can back up to 8 simultaneously backups of 8 VMs. That’s why you can deploy several VDP appliances in your environment. There can be Maximum 10 VDP appliances connected to single vCenter server.
vSphere Data Protection is more efficient than vSphere Data Recovery (VDR)
The main difference is in the size of segments. The VDP uses Variable where VDR uses Fixed-Length Data Segments. To eliminate a redundant data (and save a lot of storage space) at a segment (or subfile) level there are basically two methods. Fixed or Variable. So the deduplication mechanism is more sophisticated than used in VDR, and so we should see better backup performance and lower storage needs.
Fixed-length - Fixed-block or fixed-length segments are commonly employed by snapshot and some deduplication technologies. But still, small changes to a dataset can change all fixed-length segments in a dataset, despite the fact that very little of the dataset has been changed.
Variable-length – vSphere Data Protection uses an intelligent variable-length method for determining segment size that examines the data to determine logical boundary points, eliminating the inefficiency.
vSphere Data Protection’s algorithm analyzes the binary structure of a data set (all the 0s and 1s that make up a dataset) in order to determine segment boundaries that are context-dependent. Variable-length segments average 24 KB in size and are compressed to an average of 12 KB. By analyzing the binary structure within the VMDK files, vSphere Data Protection works for all file types and sizes and intelligently deduplicates the data.
vSphere Data Protection – the user management.
If you’re using Microsoft AD, and vCenter server running Windows Server x64, you must make sure that a user with sufficient priviledges is added to the Administrator’s role in vCenter. If you don’t, then the VDP appliance won’t connect to vCenter and you’ll end up with an error like this while following the deployment assistant.
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SUBCOMMITTEE ON OVERSIGHT AND INVESTIGATION
MANAGEMENT OF THE HANFORD SPENT FUEL PROJECT
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