Existing Set Customer of Database Uses a Raw Device, Due

Multiple Choice

Existing set customer of database uses a raw device, due to the large amount of data in the database. The customer plans to replace the old storage with new storage devices. In the process of environmental inspection lvcb engineers found the following: #getlvcb -TA sjklv Intrapolicy = copies = 0 interpolicy = lvid = lvname = label = machine id = number Ips = 0 relocatable = strict = stripe width = 0 stripe size in exponent = 0 type = upperbound = 0 fs = time created = time modified = As the vg is too large, the expansion of vg is impossible. As the service window is very short, and customers do not want to avoid the risk of large adjustments of the whole original environment, what is the recommended approach?

A) Based on lvcb offset reconstruction nude equipment, and the database level 0 backup import
B) Use the dd command for data migration
C) Use the cplv command for data migration
D) Use migratepv for data migration