HA Datastores

[FLINTY1]

** NEWBIE **

Appologies if this is not the right Technology Group. 

We have recently purchased a VRTX Chassis. After configuration we are getting a warning " The number of vSphere HA heartbeat datastores for this host is 1, which is less than required: 2".

After attempting to create a new datastore I dont see any VMFS \ disk/LUN for provisioning. I only see the Local OS ATA disk. We have configured a Raid 6 SAN and given the only datastore half the disk space. There are 3TB of disk space available but i am not seeing these in vSphere Client when attempting to create a new Datastore. 

The details of the VRTX is PowerEdge M640 (VRTX) - VMware ESXi, 6.7.0, 16316930.

I would be grateful if someone could offer and guidance - assistance.

Regards.

[fabio1975]

Ciao 
you have two options:
- Deactivate the warning, more details in this KB also of the possible contraindications

HA error: "The number of heartbeat datastores for host is 1, which is less than required: 2" (200473...

- Or create a second shared VMFS datastore
It is not clear to me if you have created a single virtual volume that occupies all the space of the raid configured with all the disks present and on which you have created a datastore using only part of the space or you have created a virtual volume using only part of the disks or part of the raid configured

[FLINTY1]

Hi Fabio1975

The first option would not be our best option.

Regarding the second option

Or create a second shared VMFS datastore
It is not clear to me if you have created a single virtual volume that occupies all the space of the raid configured with all the disks present and on which you have created a datastore using only part of the space or you have created a virtual volume using only part of the disks or part of the raid configured.

I think a datastore was created using only part of the space on the Raid 6.  How can i check what has been created. I am very new to VRTX. Thanks in advance.

[fabio1975]

Ciao 

you can start to see this video

https://www.dell.com/support/manuals/it-it/poweredge-vrtx/cmcvrtx33ug/creating-virtual-disk-using-cm...

and read this documentation

Dell Chassis Management Controller Version 3.3 for Dell EMC PowerEdge VRTX User's Guide | Dell Itali...

Sorry, but i am not a VRTX expert 🙂

[Csanyi]

I'm using version 7, i can't seem to find any of the options in these instructions:

To disable the HA error message:

1. Log in to vCenter Server.
2. Right-click the cluster and click Edit Settings.
3. Click vSphere HA > Advanced Options.
4. Under Option, add an entry for das.ignoreInsufficientHbDatastore.
5. Under Value, type true.
6. Click Cluster Features.
7. De-select Turn on vSphere HA and click OK.
8. Wait for all the hosts in the cluster to deconfigure HA, then right-click the cluster and click Edit Settings.
9. Click Cluster Features.
10. Click Turn on vSphere HA.
11. Click OK.

[scott28tt]

Thread reported to moderators so it can be moved to the correct area.

[fabio1975]

Ciao @Csanyi 

you need:

after

and 

after add insert: 

das.ignoreInsufficientHbDatastore  and insert under value true

After disabling and re-enable the vSphere HA.

[depping]

Just so you understand, the HA Datastore Heartbeat mechanism is a way for HA to determine if a host is impacted by a failure or not. In your case, with a VRTX solution, it is okay to only have 1 datastore. We have the same with vSAN for instance. SImply change the advanced setting as recommend above.

[FLINTY1]

Hi All,

Thanks very much for your messages. 

Just one more thing. Can the settings be adjusted during the working day? I ask because our site is a production site and i wouldn't want any problems. 

Regards.

[depping]

Yes that is no problem. The setting simply removes the warning, doesn't do anything else than that.

[FLINTY1]

hi all.

the warning has cleared but i still see the yellow exclamation mark on the hosts.

How do i clear these. Any help would be greatly appreciated.

regards.

[fabio1975]

Ciao @FLINTY1 

do you have any warning messages on the ESXi Host?

[FLINTY1]

Hi Guys,

sorry for not getting back sooner.

I applied the fix and there are no more warnings on the hosts.

Regards.