Problem and solution when a host of an OceanStor V3 storage system cannot deliver services

Publication Date:  2016-12-02 Views:  95 Downloads:  0
Issue Description
Problem and solution when a host of an OceanStor V3 storage system cannot deliver services
Solution
Cause:
The disk enclosure that encounters a power failure is a sub-group of RAID 10. Data can also be written into other sub-groups. However, if a disk enclosure encounters a power failure, the metadata logs of more than three disks are recorded. Currently, the RAID 1 group has only four disks. Therefore, the logs of a maximum of four disks are recorded. If the logs of extra three logs must be recorded, the logs fail to be recorded and an I/O failure is returned to the host.
Solution:
Power on the disk enclosure to solve the problem.

END