Hi Guys,
I've inherited a VM system at my new job and looking over the configuration which I feel is incorrect but would like a steer from some on you experts.
The System
1 Dell Compellant FC Storage
3 VM Hosts
The hosts have the following NIC assigmnets
2 x 10GB cards configured a a pair, servicing all Virtual Machine VLANs
2 x 1GB cards for Management (VMKernal Port)
4 x 1GB cards for VMotion
All the 1GB cards are using an MTU of 1500
One of the Hosts is using MTU of 9000 for the 10GB cards but the other 2 are using an MTU of 1500
The switches are using an MTU of 1500 for all VLAN - HP 2920 switches, they seem to assign Jumbo Frames on the VLAN no the switch ports
Should I enable an MTU of 9000 for the VMotion cards - and switch VLAN for VMotion - and also the 10GB cards and the switch VLANs that these cards carry?
Do you have any suggestions for a better configuration?
Also, these hosts are providing a live environment. How would you suggest any changes are made to prevent an outage - if this is possible?
Any help would be really appreciated