A.Full backup + Differential incremental backup

B.Cumulative incremental backup + Differential incremental backup

C.Full backup + Cumulative incremental backup

D.Full backup

A.At this time, the master-slave relationship of the directories at both ends specified by the Pair remains unchanged.

B.A pair split occurs. The possible cause is a temporary link abnormality or network bandwidth expansion.

C.After the pair is resynchronized, the difference data and the synchronized data that have not been copied to the secondary directory due to the split operation in the last synchronization need to be resynchronized.

A.When the IB switch is used in the OceanStor 9000 network, the server can be equipped with a 2-port IB network card, providing two 40GE QSPP+ Ethernet optical ports for connecting to the IB switch.

B.C72 is a large-capacity archive node device with a height of 4U. It is used in large-capacity application scenarios. It has 72 service hard disk slots and 4 operating system hard disk slots.

C.All types of storage nodes support inserting an SSD disk in slot 0 as a read cache to improve system read performance.

D.P25 is a high-performance storage node device with a height of 2U. It is used in OPS-intensive application scenarios. It has 25 front-mounted service hard disk slots and 2 rear 2.5-inch operating system hard disk slots.

A.OceanStor 18800F

B.OceanStor 18500

C.OceanStor 18900

D.OceanStor 18800

A.1+1

B.2+2

C.4+4

D.2+1