THe E9000 connected with Oceanstor 5500 V3 storage array and the storage resource had been mapped into E9000 blade.the OS in blade is ESXI 6.0.
when custoemr want to migrate one VM thta the migration interrupted.the datastore status is offline in VM.
There is no alarm on Oceanstor 5500 V3 and E9000.
1: ask customer to collect the E9000 logs and storage logs to analyzed.
From the E9000 logs, we founs many information reported as below with red marked, that means the FC link status is not stable.
2: From storage logs, we found some back bad error reported.this error means the iSCSI has some problem.
3: checked the disk information, we found the disk sector is 4K.there is compatibility is between Oceanstor 5500 V3R1C20 and 4K disk.
this site that customer equiped 4K disk in storage Oceastor 5500 V3R1C20. that storage version has a compatibility issue. it will result this issue, please check the detailed information as below:
1, install patch V300R001C20SPH001
2, Recovery fault page:
Force to flash all LUNs. （Developer:/> change lun_fault_page recover lun_id_list=*）
Please run this command for every 4K disk LUNs then issue can be solved.