As said i have not measured the traffic but noticed that backup tasks (VCB / BE Agent Backup of files within the VM's) take longer as before the upgrade.
Here are some details of our cluster:
2 x Dell PE 2950 (identical systems with: Dual Quadcore 3 GHz, 24 GB RAM, 2 single port QLogic 4050c iSCSI HBA's, 1x Intel Quadport NIC)
2 x Dell PE 2900 (identical systems with: Dual Quadcore 3 GHz, 24 GB RAM, 2 single port QLogic 4050c iSCSI HBA's, 2 x Intel Quadport NIC's)
1 x Dell MD 3000i (2 x Dual Port iSCSI Controller)
1 x Dell MD 3000i (2 x Dual Port iSCSI Controller)
1x Dell MD 1000 (attached to one of the MD 3000i)
4 x Dell managed PowerConnect switches
Each QLogic HBA displays:
4 targets
9 Devices
22 Paths
The server share 5 data stores:
Datastore1: 36 VM's/Templates 1,09 TB
Datastore2: 3 VM's/Templates 196 GB
Datastore3: 1 VM 136 GB (RDM DB store for SQL Server running on Datastore1)
Datastore4: 1 VM 136 GB (RDM Log store for SQL Server running on Datastore1)
Two other LUN's on the SAN are used by our physikal Backup Server (2 TB / 1,2 TB)
We have two server rooms in different buildings. The vSphere cluster is split over both server rooms (1 x PE2900 / 1 x PE2950 / 1 x MD3000i / 2x Switch) in each room).
The switches connect the 4 ports of each md3000 to the HBA's providing full redundancy. One port of each switch is connected to a cisco stack that has multiple fiber connections to a stack in the other building.
The SAN traffic between the buildings is separated from the LAN by use of a VLAN. All ports in the SAN network use the same subnet.
The servers use the ESXi 4 installable version installed on local RAID 1 disks.
I can provide more details e.g. firmware when i'm in the office tomorrow.
Thanks!
Mirko
