SAN Storage share to ESXI hosts

[hoiyi88]

Hi All,

We've plan to have SQL failover cluster instance, it will access the SAN storage for the share volume with RAW disk.

Does it require vCenter to manage the  share volume for RAW disk?

[HassanAlKak88]

Hello,

Yes technically you can, it is not feature related to vCenter.

[hoiyi88]

I try to run different VM on same share volume with different esxi hosts. the datastore was corrupt.

Can we use vmware essential edition to manage same share volume with different datastore?

[GaelV]

You can run different VM on the same datastore but not on the same volume except if you use RDM disks. (else it's advised to use a replication software)

In your case, i'd say it seems preferable to map .rdm in cross-way to avoid path conflicts..

Take a look at the image below :

[hoiyi88]

the VM is install on same share datastore and it don't use same vmdk. I think there have some misunderstand.

My volume is mean a LUN with SAN datastore.

RDM is for SQL FCI share disk , it should have no issue to access same share datastore? no require vCenter with cluster mode?

Thanks.

[HassanAlKak88]

Hello,

Can you share the settings for the two VMs sharing the RDM disk.

[hoiyi88]

It just RDM mapping with share bus and physical disk, refer to VMware failover cluster setup guide,

The storage vendor guy say there must have vCenter with joined cluster the management the data integrity with SAN share volume for different ESXI hosts.

RDM share with SQL failover cluster is different case, they say SQL failover cluster will handle the data integrity so no need to worries the data integrity with RDM.

[a_p_]

I try to run different VM on same share volume with different esxi hosts. the datastore was corrupt.

What exactly became corrupt? A VMFS datastore, or the daat on the RDM volume?

Please remember that a Microsoft Cluster is a Shared-Nothing cluster, which means that only one node at a time must have access to the shared volume!

For details about clustering support, and links for how to configure it see e.g. https://kb.vmware.com/s/article/2147661​

André

[hoiyi88]

The corrupt is ESXI show to share data storage with 0B and Deivce tab and showing error, uknown..

Storage vendor say two ESXI have different IO to the same volume and it will make it have issue because the ESXI don't there have two read write on the same share volume wiith two ESXi hosts.

The ESXI must joined with cluster and the vmware cluster can handle the different IO is come from which ESXi hosts.

Does it true?