NBU4.5備份隨機(jī)錯誤

sunboy

NBU4.5 ,server ,client都在一臺機(jī)器上，rman熱備份oracle8i數(shù)據(jù)庫，solaris8
sparc平臺，備份到外置的sdlt320磁帶機(jī)上
備份經(jīng)常會未全部結(jié)束時出錯
現(xiàn)象是比如磁帶機(jī)里面是a00002，nbu會去mount 以前的a00000，然后timeout結(jié)束
察看bptm日志：
發(fā)現(xiàn)在出錯前總是會有這樣的紀(jì)錄：
02:56:24.437 [6332] <2>; db_byid: search for media id A00002
02:56:24.437 [6332] <2>; db_byid: A00002 found at offset 3
02:56:24.437 [6332] <2>; tpunmount_all: tpunmount'ing /usr/openv/netbackup/db/media/tpreq/A00002
02:56:42.296 [6408] <2>; select_media: cannot find mounted media in standalone drive, select media from media database if possible
02:56:42.315 [6408] <2>; select_media: selected media id A00000 for backup[0], xyzsystem(rl = 3)

sunboy

然后就是：
02:56:42.315 [6408] <2>; mount_open_media: Waiting for mount of media id A00000 (copy 1) on server xyzsystem

最后一直mount timeout抱錯

哪位老大知道原因何在？

dongjh

available_media結(jié)果輸出看看

sunboy

介質(zhì)沒什么問題,也沒有frozen
# available_media
media   media   robot   robot   robot   side/   ret    size     status
ID     type    type      #     slot    face    level  KBytes
----------------------------------------------------------------------------
DataStore pool

NetBackup pool

A00000  DLT      NONE     -       -      -       3     98824832 ACTIVE
A00001  DLT      NONE     -       -      -       3     89424864 ACTIVE
A00002  DLT      NONE     -       -      -       3     6751904  ACTIVE

None pool

sunboy

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