Host-based backup of VMware vSphere VMs.
Post Reply
pizzim13
Enthusiast
Posts: 94
Liked: 6 times
Joined: Apr 21, 2011 7:37 pm
Contact:

Granular control over VM parallel processing

Post by pizzim13 »

I see that there is one check box to enable parallelization of VMs and their disks for both backups and restore jobs. Is there anyway to disable the parallel processing of disks while keeping the parallel processing of VMs. I find that processing VMs with multiple virtual disks that are on the same datastore can really beat up the underlying physical disks.
veremin
Product Manager
Posts: 20415
Liked: 2302 times
Joined: Oct 26, 2012 3:28 pm
Full Name: Vladimir Eremin
Contact:

Re: Granular control over VM parallel processing

Post by veremin »

Is there anyway to disable the parallel processing of disks while keeping the parallel processing of VMs.
No, in concepts of VB&R single task is equal to single virtual disk. Thus, parallel processing is defined by number of virtual disks (not VMs) that can be processed simultaneously.
I find that processing VMs with multiple virtual disks that are on the same datastore can really beat up the underlying physical disks.
But how this would be different from the situation when disks belonging to different VMs that reside on the same datastore will be processed at the same time?
tsightler
VP, Product Management
Posts: 6035
Liked: 2860 times
Joined: Jun 05, 2009 12:57 pm
Full Name: Tom Sightler
Contact:

Re: Granular control over VM parallel processing

Post by tsightler »

If you enable storage latency control (assuming you have at least enterprise license), then Veeam will monitor latency on the datastore during backup and not start additional tasks if the datastore is being hammered, even on the same VM. It can even throttle the backup if datastore latency goes over the secondary threshold.
mma
Service Provider
Posts: 111
Liked: 21 times
Joined: Dec 22, 2011 9:12 am
Full Name: Marcel
Location: Lucerne, Switzerland
Contact:

Re: Granular control over VM parallel processing

Post by mma »

There is even a veeam controlled limit of backup related snapshots (in other words backup tasks) per datastore.

Default is max. 4 snapshots per datastore. You can change this wit the key
HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication\MaxSnapshotsPerDatastore (REG_DWORD)

Regards
Marcel
Post Reply

Who is online

Users browsing this forum: No registered users and 29 guests