Problem Description : Our Customer is not able to create a new DATA DISK in ISM .
When he tried to do that from ISM he received a FAILED message like in below picture.
The received message is, "Some node of current Cluster is not connected to the storage unit" .
The sytem is a NAS - N8500: V200R001C00SPC104 with Oceanstor S5500T V100R005C00;
Current version: N8500: V200R001C00SPC104 with storage S5500T: V100R005C00
In order to fix this issue we recommend to upgrade the NAS device to : N8500: V200R002C00SPC100 and the S5500T storage version should be : V100R005C30SPC300.
We only supported offline upgrade, so the service will stop when we upgrade the equipments, the service stop time will be about 6-8 hours at least . Take in consideration 10 hours as downtime .
Final Solution :
For this option - “create data disk ” – the button is an old interface for an old version n8500 ( for all the newest version we don’t have this option, this button has been removed from ISM), and a compatibility issue occurs when you tried to use it in old version, like a solution (without firmware upgrade ) we can create a lun ( and mapping ) in a normal way “Storage resource””luns”-create a lun.