maying

HP5030带库，LEGATO软件。
每次备份结束，换带写INDEX时总是报“nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd”错误，导致频繁发送告警邮件，但是备份最后是成功的，日志如下，那位高人能给分析一下？

04/27/07 20:00:01 nsrd: savegroup info: starting  db_arch (with 1 client(s))
04/27/07 20:02:55 nsrd: media info: suggest mounting CU1250L1 on ln_db01 for writing  to pool 'Default'
04/27/07 20:02:55 nsrd: media waiting event: Waiting for 1 writable volumes to backup pool 'Default' tape(s) on ln_db01
04/27/07 20:02:57 nsrd: media info: loading volume CU1250L1 into rd=ln_db01:/dev/rmt/c8t0d1BESTnb
04/27/07 20:03:15 nsrd: rd=ln_db01:/dev/rmt/c8t0d1BESTnb 1:Verify label operation in progress
04/27/07 20:03:28 nsrd: rd=ln_db01:/dev/rmt/c8t0d1BESTnb 1:Mount operation in progress
04/27/07 20:03:57 nsrd: media event cleared: Waiting for 1 writable volumes to backup pool 'Default' tape(s) on ln_db01
04/27/07 20:03:57 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh saving to pool 'Default' (CU1250L1)
04/27/07 20:03:57 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh saving to pool 'Default' (CU1250L1)
04/27/07 20:04:54 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh done saving to pool 'Default' (CU1250L1) 635 MB
04/27/07 20:05:10 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh done saving to pool 'Default' (CU1250L1) 1044 MB
04/27/07 20:05:22 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh saving to pool 'Default' (CU1250L1)
04/27/07 20:05:23 nsrd: ln_db01:/usr/rmanscript/backup_arch.sh done saving to pool 'Default' (CU1250L1) 14 MB
04/27/07 20:06:15 nsrd: write completion notice: Writing to volume CU1250L1 complete
04/27/07 20:07:03 nsrd: media info: suggest mounting CU1239L1 on ln_bak for writing  to pool 'index'
04/27/07 20:07:03 nsrd: media waiting event: Waiting for 1 writable volumes to backup pool 'index' tape(s) on ln_bak
04/27/07 20:07:05 nsrmmd #5: Start nsrmmd #5, with PID 8716, at HOST ln_bak
04/27/07 20:07:07 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:07:28 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:07:48 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:08:31 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:09:01 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:09:39 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:10:18 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:11:01 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:11:47 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:12:36 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:13:25 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:14:18 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:15:19 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:16:23 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:17:31 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:18:45 nsrd: Jukebox 'msl503' failed: All of the devices are in use by nsrmmd
04/27/07 20:20:02 nsrd: rd=ln_db01:/dev/rmt/c8t0d1BESTnb 1:Eject operation in progress
04/27/07 20:20:04 nsrd: media info: Suggest manually labeling a new writable volume for pool 'index'
04/27/07 20:22:49 nsrd: media info: suggest mounting CU1239L1 on ln_bak for writing  to pool 'index'
04/27/07 20:22:49 nsrd: media critical event: Waiting for 1 writable volumes to backup pool 'index' tape(s) on ln_bak
04/27/07 20:22:50 nsrd: media info: loading volume CU1239L1 into [url=file://\\.\Tape0]\\.\Tape0[/url]
04/27/07 20:23:07 nsrd: [url=file://\\.\Tape0]\\.\Tape0[/url] 1:Verify label operation in progress
Blat v2.4 w/GSS encryption (build : Jan 15 2005 08:32:11)
Sending E:\alert_log\1.txt to 邮件列表
Subject: LEGATO_warnning!!
Login name is
Try number 1 of 3.
04/27/07 20:23:28 nsrd: [url=file://\\.\Tape0]\\.\Tape0[/url] 1:Mount operation in progress
04/27/07 20:24:21 nsrd: media event cleared: Waiting for 1 writable volumes to backup pool 'index' tape(s) on ln_bak
04/27/07 20:24:21 nsrd: ln_bak:index:ln_db01 saving to pool 'index' (CU1239L1)
04/27/07 20:24:23 nsrd: ln_bak:index:ln_db01 done saving to pool 'index' (CU1239L1) 30 KB
04/27/07 20:24:31 nsrd: ln_bak:bootstrap saving to pool 'index' (CU1239L1)
04/27/07 20:24:37 nsrmmdbd: media db is saving its data.  This may take a while.
04/27/07 20:24:37 nsrmmdbd: media db is open for business.
04/27/07 20:24:38 nsrd: ln_bak:bootstrap done saving to pool 'index' (CU1239L1) 544 KB
04/27/07 20:24:39 nsrd: savegroup info: Added 'ln_bak' to the group 'db_arch' for bootstrap backup.
04/27/07 20:24:39 nsrd: savegroup notice: db_arch completed, total 2 client(s), 0 Hostname(s) Unresolved, 0 Failed, 2 Succeeded.
04/27/07 20:25:19 nsrd: write completion notice: Writing to volume CU1239L1 complete
04/27/07 20:35:45 nsrd: [url=file://\\.\Tape0]\\.\Tape0[/url] 1:Eject operation in progress