DataDomain configuration

[marcy]

Hello,

I have a question about VEEAM B&R (version 9.5b) in combination with a DataDomain DD2200 with a total of 12TB memory capacity.

Via Backup Copy Job we backup the entire VMWare environment every five days and keep 2 revisions.
According to VEEAM the size is about 9.47TB.

Now we have the problem that the storage capacity of the DataDomain is running low (< 1TB) and the question is whether there is a problem with the configuration or deduplication of the DataDomain.

The backup contains two larger VMs (Exchange 1.9TB, File 1.5TB) and otherwise only very many small VMs.

Active Tier:
Resource Size GiB Used GiB Avail GiB Use% Cleanable GiB*
---------------- -------- -------- --------- ---- --------------
/data: pre-comp - 83029.5 - - -
/data: post-comp 11921.6 11508.6 413.0 97% 0
/ddvar 49.2 14.5 32.2 31% -
/ddvar/core 49.2 2.9 43.8 6% -
---------------- -------- -------- --------- ---- --------------

From: 2020-06-22 07:00 To: 2020-06-29 07:00

Pre-Comp Post-Comp Global-Comp Local-Comp Total-Comp
(GiB) (GiB) Factor Factor Factor
(Reduction %)
---------------- -------- --------- ----------- ---------- -------------
Currently Used:* 83029.5 11508.6 - - 7.2x (86.1)

[HannesK]

Hello,
the values shown in the Veeam UI are not really relevant. Veeam does not know about the details on data reduction happening on a deduplication appliance.

https://www.veeam.com/kb1745 links to https://support.emc.com/kb/534885 with the best practices. That whitepaper should have all configuration options included.

Best regards,
Hannes