troubleshooting Question

VMware ESXi 5.5 VDDK delta generation

Avatar of mfg1
mfg1Flag for United Kingdom of Great Britain and Northern Ireland asked on
VMwareHardwareVirtualization
1 Comment1 Solution92 ViewsLast Modified:
Hi,

I am using a backup solution which protects the VM at hypervisor level (I am using ESXi 5.5). It relies on creating a delta file of the VMDK's attahced to the VM. The schedule is weekly and I am concerned the vmdk delta file seems quite large. I have a VM with Windows Server 2012R2 used as a terminal server, it only has 1 vmdk attached. The delta file created between weekly backups is nearly 30GB! This seems huge for a terminal server with no real data on it. The vmdk total size is 100GB.

1. does this seem normal?

2. is there any way of reducing this delta size? (data deplucation in Server 2012?)

3. is the delta generation a limititation of ESXi? (compared to ESX?)

4. does it rely on the virtual hardware specs of the VM as well? i.e. if it has 16GB RAM assigned, I think this affects the swap size? does it also affect the delta?


I hope that all makes sense.

Thanks for your responses
ASKER CERTIFIED SOLUTION
Join our community to see this answer!
Unlock 1 Answer and 1 Comment.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 1 Comment.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros