job throttling

[dacky7]

Hi,

We are experiencing slow backup times, from what i can see our storage is the main bottleneck and during this job the vm being processed is throttled down to 7MB/s. Can i ask if the storage becomes free should this throttling decrease or will it remain so until the jobs complete?

regards,

[lando_uk]

Unless you've set throttling somewhere, the 7MB/s isn't being throttled, its just the speed that your repository can currently work at. Reverse incrementals can really grind your storage and backups can be this slow, you save loads of space and restore times are better, but unless you have decent IOPs they can be really slow to process.

[foggy]

Mark is correct. What kind of storage it is, how it is added to Veeam B&R console, and what backup method is used by the job in question? What bottleneck stats does it report?

[dacky7]

Hi,

Thanks for the replies

Ok so our setup is:

Veeam Backup Host:
HP DL180 G6
Smart Array P212 with BBWC.
12xHP 1TB SAS 10k drives, RAID-50
Single NIC (although id like to know if we can team this now in V8)
Veeam B&R V8 (latest Build)
Windows 2012 R2, fully updated including drivers etc

SAN:
Netapp FAS2240-2 (pair of in HA)
18x SAS 500gb drives
RAID-DP (standard setup)

DR SAN:
Netapp FAS-2220

Virtual:
3x DL380P G8
384gb ram
2x250gb sas (OS only)

Veeam Setup:
Sequence - Backup -> Replication + Tape

Backup:
on-host backup
backup repo - local
secondary - tape
guest processing: app aware on, indexing

Replication:
Destination - SAN (iscsi)
repo for meta - local
advanced - guest quiescence enabled, crash consistent, changed block enabled
direct mode
source - from backup files

report:
source 74% - proxy 5% - Network 38% - Target 25%

Anything else chaps? Our backup window has shot up since V8, i get by going with reverse-incremental this would take longer but it`s over 300% longer

Cheers,

[foggy]

source 74% - proxy 5% - Network 38% - Target 25%

Based on these, you major bottleneck is in reading data from source storage. Haven't you thought of switching to off-host backups?

[dacky7]

Hi,

What would be required / involved in moving towards off-host?

Cheers,

[foggy]

An off-host proxy (could be your physical Veeam B&R server). Also, you can monitor whether the storage is heavily loaded during backup, checking the performance with the help of Veeam ONE, for example (IOPs, read/write rate etc.).