VMware ESXi 5.0 and EqualLogics SAN failure
Ran into an interesting issue this weekend when doing a storage vMotion from one EqualLogics array to another. During the move of a live VM the ESXi (verison 5.0) lost connection to one of the volume in the the storage array and since our vCenter server was on that volume we also lost the management server. At the same time another ESXi (version 5.0 also) lost connection to two volumes on the same storage array. We had total of three arrays that were lost, but the VMs that are connected from another ESXi server to those volumes were still up and running.
Log onto the actual ESXi box but rescanning the storage or trying to get the storage back online did not work. For some reason the iSCSI channel was being used and would not let go. The only solution seems to be to reboot the ESXi server.
Did anyone run into this kind of issue and what might of caused it and how to fix it?
Please help...
Our current setup...
3 ESXi (version 5.0) servers
HA and DRS is turned on
All servers in the same cluster
3 EqualLogics array in two different group connected via iSCSI
Log onto the actual ESXi box but rescanning the storage or trying to get the storage back online did not work. For some reason the iSCSI channel was being used and would not let go. The only solution seems to be to reboot the ESXi server.
Did anyone run into this kind of issue and what might of caused it and how to fix it?
Please help...
Our current setup...
3 ESXi (version 5.0) servers
HA and DRS is turned on
All servers in the same cluster
3 EqualLogics array in two different group connected via iSCSI
yes, update to ESXi 5.0 U1
ASKER
hanccocka : Do you know what was causing the issue? NIC card or iSCSI or etc...
paulsolov :
Q1 : Yes the vMotion was on the same VLAN / subnet as the iSCSI.
Q2 : iSCSI is not routed. 4 ESXi NIC ports are all on the SAN network isolated from all others.
paulsolov :
Q1 : Yes the vMotion was on the same VLAN / subnet as the iSCSI.
Q2 : iSCSI is not routed. 4 ESXi NIC ports are all on the SAN network isolated from all others.
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ASKER
Thanks guys... Your answers helped out a lot.
The upgrade to U1 will occur soon and the reconfiguration of the vMotion will be made to just isolate the iSCSI traffic from vMotion traffic on a different network.
The upgrade to U1 will occur soon and the reconfiguration of the vMotion will be made to just isolate the iSCSI traffic from vMotion traffic on a different network.
Is your iscsi routed or is all traffic going from your ESXi hosts to the Equalogic on the same broadcast domain (layer 2 connectivity)?