VxRail: iSCSI datastore causing host not responding and all VMs on it disconnected
Summary: iSCSI datastore causing host not responding and all VMs on it disconnected because of some of the hosts have SW iSCSI with port binding and vmk's in different subnets. and when using different subnets , The port binding should be removed ...
This article applies to
This article does not apply to
This article is not tied to any specific product.
Not all product versions are identified in this article.
Symptoms
- Host connection and power state Dial home or customer reporting host not responding from the vCenter view and all the VMs in that host not responding, yet the host itself is reachable on the network and all the VMs on it are accessible.
Cause
-One or more VMs are connected to iSCSI datastore, While some of the hosts have SW iSCSI with port binding and vmk's in different subnets.
For Example :
Adapter Vmknic IPv4 IPv4 Subnet Mask
------- ------ ---- ----------------
vmhba40 vmk4 XXX.XXX.241.XX 255.255.255.0
vmhba40 vmk5 XXX.XXX.244.XX 255.255.255.0
==This deployment usually required by RecoverPoint
Adapter Vmknic IPv4 IPv4 Subnet Mask
------- ------ ---- ----------------
vmhba40 vmk4 XXX.XXX.241.XX 255.255.255.0
vmhba40 vmk5 XXX.XXX.244.XX 255.255.255.0
==This deployment usually required by RecoverPoint
Resolution
Remove the port binding as we don't need a port binding if the iSCSI and vmk ports are on different subnet.
Action Plan :
To remove the vmk's from port binding, Please follow procedure below:
1) Migrate all VMs to other servers
2) Get the host into Maintenance mode
3) Unmount all iSCSI datastores (unmount, DO NOT delete them)
4) Remove the vmkernel ports from port binding if you get prompted that you are about to remove the last vmkernel port from the setup, click YES
The steps to Remove the vmkernel ports from port binding:
https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.html.hostclient.doc%2FGUID-94CBA46B-B8B8-4377-B936-CC71C1880E02.html
5) Perform a storage rescan
6) Reboot the server
7) Exit maintenance mode
8) Migrate VMs from another host to the updated host, and repeat the process
Action Plan :
To remove the vmk's from port binding, Please follow procedure below:
1) Migrate all VMs to other servers
2) Get the host into Maintenance mode
3) Unmount all iSCSI datastores (unmount, DO NOT delete them)
4) Remove the vmkernel ports from port binding if you get prompted that you are about to remove the last vmkernel port from the setup, click YES
The steps to Remove the vmkernel ports from port binding:
https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.html.hostclient.doc%2FGUID-94CBA46B-B8B8-4377-B936-CC71C1880E02.html
5) Perform a storage rescan
6) Reboot the server
7) Exit maintenance mode
8) Migrate VMs from another host to the updated host, and repeat the process
Affected Products
VxRail Appliance FamilyProducts
RecoverPoint, VxRail Appliance FamilyArticle Properties
Article Number: 000059616
Article Type: Solution
Last Modified: 10 May 2023
Version: 3
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.