单项选择题

A.The associated JFS2 log device has failed. Check the log device and varyon the device.
B.The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
C.Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot.
D.The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.