EqualLogic PS6210 down - no space

Question

Late yesterday, I was working in our vSphere 6.5 Environment connected to a Horizon View Desktop.

The View Desktops reside on the EqualLogic as does the other infrastructure VMs.

I lost connection and contacted our admin.

They traced the problem to the EqualLogic going down and reporting no space available.

No snapshots are being used in the EqualLogic, so we are not sure what took out the space.

The admin was able to login to the EqualLogic and based on what they see, there is 4 TB of available space reported by one controller and one controller reports 4 GB.

They tried a reboot of the EqualLogic and it did not help.

I am still trying to gather info on what the ESXi Server show for the datastore tied to EqualLogic

Any ideas on what may have happened and where to look?

thanks

dwilliam62 · Accepted Answer

Hello,   Yes, ideally iSCSI is always on its own IP subnet and with its own switches when not using DCB.    Regards,  Don

dwilliam62 · Answer

Hello,   I think when you said 'on controller' you meant 'one member'?    On a single member there are two controllers, but only one is active, so only one will see the storage space.   There is just too little information to go on here.    It sounds like a member has run out of space.    I suspect you don't have a support contract?   Depending on where you are you can purchase a one time support call and an engineer will attempt to triage the problem.    Regards,  Don

SJNAPL · Answer

I am still gathering info.

The admin is another building.

Is there a cmd that can be issued once they are in via SSH to see the space one of the members?

If it is indeed out of space, can a cmd be issued to see if a a file took up the space?

thanks

dwilliam62 · Answer

Hello,   At the CLI you can run 'show member'   That will show you the free space on each member.   Re: File. No. this is a SAN, not a NAS.  The SAN works at the block level of storage. It knows nothing of files or filesystems.   It's also not the most correct view on in-use space as a result. If you write 100GB to a new volume, SAN will show 100GB in-use.  If you delete it 100% and the host filesystem does NOT send the UNMAP command, the array will continue to show 100GB in-use.  Not every filessystem supports this command which tells the array to return space to the free space in that pool   Regards, Don

SJNAPL · Answer

The admin reported that it was not a space issue

It was an IP conflict with the SAN and host, although i am not sure how or where. He did not report the details other than saying he had to move VMs around the storage and host.

I do not know if they set up the controllers on a different network than what ESXi and the infrastructure VMs run on.

When i have set up a SAN in the past, i use a different network for the iSCSI connections. The ESXi mgt and VMs are on a separate network.

EqualLogic

EqualLogic PS6210 down - no space

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