Is there any change in the backend CLARiiON configuration? Had you added or deleted any LUNs from Celerra Storage group recently? If so, have you ran server_devconfig commands on all the data movers (including standby mover)?

This issue may happen, when Celerra finds any change in the backend configuration compared to what it expects to see.

However, best option is to open a SR with NAS support.

Thanks,
Sandip

nothing quick in the knowledgebase

I suggest you open a case with EMC customer service and have them take a look

please, if you have an EMC support contract open a service request with EMC customer service

If they can dialin and get the Celerra config plus Clariion SP collects this should be so much easier and quicker

even try server_devconfig -probe -scsi -nondisks
but didn't solved it

we've found the binary server_devconfig on the nas os but how to use it ?

Some lun has been created recently, but don't know anything about the command you talk about. How to launch it. Through gui ?

we have launched server_devconfig -probe -scsi -disks
for both datamovers but nothing has changed

sr created