Redundancy iSCSI SAN networking
Posted on 2013-01-18
I am using EqualLogic iSCSI SAN with VMWare in office. My configuration like this..
2 x 10Gbps LAN switch as iSCSI SAN / LAN core switch (these 2 switches are stacked each other)
I have two VLAN configured in the iSCSI switch, VLAN10 and VLAN20.
VLAN10 is for iSCSI SAN connect to EqualLogic
VLAN20 is for LAN connect to Server and the other LAN switches.
These two switches provides 48 ports (24 ports each).
On iSW1, port 1 - port 14 assigned to vlan10 and port 15 to port 24 assigned to vlan20
On iSW2, port 1 - port 14 assigned to vlan10 and port 15 to port 24 assigned to vlan20
All VMs are on VLAN20, (192.168.0.x)
VLAN10 is for storage network. (10.0.0.x)
Port 22,23,24 on iSW1 and iSW2 are used to connect to another 3 LAN switch (LAG Group)
iSW1/22 <--> SW3/44
iSW1/23 <--> SW4/G2
iSW1/24 <--> SW5/G2
iSW2/22 <--> SW3/43
iSW2/23 <--> SW4/G1
iSW2/24 <--> SW5/G1
SW3, SW4, and SW5 are for LAN which are all workstation and other network equipment.
I found that if I turned off iSW2, I can still able to connect all hosts in VMware VMs but if I turn off iSW1, I cannot access to all hosts in VMware VMs which do not provide me the redundancy expectation.
Each VM host has redundancy NIC connect to iSW1 and iSW2.
any wrong with this configuration?