- Posts: 19
- Liked: never
- Joined: Sep 27, 2011 12:41 pm
- Full Name: Manuel Righi
I have a B&R 188.8.131.52 on a Virtual Machine.
During backup job my vCPU (on Backup VM) is 100%
My infrastructure is:
DELL R510, Ram 32 Gb, 2x Xeon E5620 (quad core), 12 HD (2Tb cad) SAS Nearline 7200 rpm (RAID 5), controller PERC H700 integrated
DELL MD1200, dual controller, 12 HD (3 Tb cad) SAS Nearline 7200 rpm (RAID 5), connected to Dell R510 with controller PERC H800 (cache 1gb) and SAS cable
Esxi 5.1 is installed on USB pendrive.
I have 2 VM's.
One VM is for data storage with Windows 2012 (datastore is local disks on R510)
One VM is for backup with Windows 2012 (vdisk with S.O. is on local disk on R510, vdisks for backup is on MD1200)
The VM for data storage is big (8 Tb actually).
When backup job is running, the vCPU of Backup VM is 100 %.
I try to assign 8vCPU to Backup VM, but all vCPU is 100%.
The backup job mode is "Reversed Incremental".
Can you help me to reduce cpu usage ?
- Product Manager
- Posts: 16666
- Liked: 1390 times
- Joined: Oct 26, 2012 3:28 pm
- Full Name: Vladimir Eremin
Assuming that this machine is also playing the role of your default proxy and no additional ones are being used, I’d say, it’s something totally expected, taking into account on-the-fly data compression and deduplication.
In order to decrease CPU utilization, it might be worth deploying additional proxy server and using it during backup/replication job. Thus, the compression and deduplication tasks would be offloaded to it, letting you primary VB&R be responsible for only management tasks.
Hope this helps.
- Posts: 44
- Liked: 10 times
- Joined: Sep 27, 2011 5:11 pm
- Full Name: Todd Leavitt
this is also from a Dell R910 (700H) and a MD3200 (with 1200 attached).
- SVP, Product Management
- Posts: 24416
- Liked: 3402 times
- Joined: Jan 01, 2006 1:01 am
- Location: Baar, Switzerland
Users browsing this forum: Bing [Bot] and 17 guests