Huawei OceanStor Storage Controller BBUs Are Both in a Fault

Multiple Choice

Huawei OceanStor storage controller BBUs are both in a fault alarm. Which description is correct for the upper application?

A) System does not work.
B) If the device is powered off unexpectedly, some of the business data will be lost.
C) Business performance is not affected.
D) Upper business IO read and write will not have any impact.