情景描述：
1、首先执行shutdown immediate ,无法关闭
2、执行了shutdown abort 正常关闭
3、执行startup ，数据库一直处于mount状态，如下：
SQL> startup
ORACLE instance started.
Total System Global Area 5368709120 bytes
Fixed Size 2028456 bytes
Variable Size 3338669144 bytes
Database Buffers 2013265920 bytes
Redo Buffers 14745600 bytes
Database mounted.
4、查看alert日志,发现数据库在做恢复，详细信息如下：
........
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
MMNL started with pid=12, OS id=192976
Tue Aug 18 11:05:25 2009
starting up 1 shared server(s) ...
Tue Aug 18 11:05:28 2009
ALTER DATABASE MOUNT
Tue Aug 18 11:05:33 2009
Setting recovery target incarnation to 2
Tue Aug 18 11:05:33 2009
Successful mount of redo thread 1, with mount id 3804362616
Tue Aug 18 11:05:33 2009
Database mounted in Exclusive Mode
Completed: ALTER DATABASE MOUNT
Tue Aug 18 11:05:33 2009
ALTER DATABASE OPEN
Tue Aug 18 11:05:33 2009
Beginning crash recovery of 1 threads
parallel recovery started with 7 processes
Tue Aug 18 11:05:35 2009
Started redo scan
Tue Aug 18 11:05:43 2009
Completed redo scan
184664 redo blocks read, 109154 data blocks need recovery
Tue Aug 18 11:07:04 2009
Started redo application at
Thread 1: logseq 3935, block 60011
Tue Aug 18 11:07:08 2009
Recovery of Online Redo Log: Thread 1 Group 1 Seq 3935 Reading mem 0
..........
请大伙帮我看看是什么问题，数据库是否正在恢复，怎样查看还得多久才能恢复完成？谢谢了