534.How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has not yet completed?
A. Issue the ALTER DISKGROUP ... ADD DISK command.
B. Issue the ALTER DISKGROUP ... UNDROP DISKS command.
C. Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.
D. Retrieve the disk from the Recycle Bin after the operation completes.
Answer: B
A. Issue the ALTER DISKGROUP ... ADD DISK command.
B. Issue the ALTER DISKGROUP ... UNDROP DISKS command.
C. Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.
D. Retrieve the disk from the Recycle Bin after the operation completes.
Answer: B
只要删除操作还没有真正完成，就可以取消删除磁盘的操作，UNDROP命令仅对磁盘的暂挂删除操作起作用；它对于已经完成的删除操作没有影响。
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/81227/viewspace-2117651/ ，如需转载，请注明出处，否则将追究法律责任。
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