client backup was not attempted because backup window closed 錯誤解決一例

今天有個備份策略出問題，報錯內容是這樣的：

04/24/2008 00:03:00 - requesting resource bfepdb-hcart2
04/24/2008 00:03:00 - requesting resource bfbkup.NBU_CLIENT.MAXJOBS.bfepdb
04/24/2008 00:03:00 - requesting resource bfbkup.NBU_POLICY.MAXJOBS.bfep_db
04/24/2008 00:03:00 - awaiting resource bfepdb-hcart2. Waiting for resources.
          Reason: Tape media server is not active, Media server: erpdb,
          Robot Type(Number): TLD(0), Media ID: N/A, Drive Name: N/A,
          Volume Pool: DB_ep_full, Storage Unit: bfepdb-hcart2, Drive Scan Host: N/A
client backup was not attempted because backup window closed (196)

在master server開啟控制檯,deivce--host,發現的status是“active for disk”。由於這個media server上面連線的是磁帶庫。正常應該是“active for type and disk”於是在這臺機器上執行tpconfig –d,一直沒有反饋資訊。

1.透過bpps檢視程式：

NB Processes
------------
    root 11379     1  0 15:24:23 ?         0:00 /usr/openv/netbackup/bin/bpcompatd
    root 11384     1  0 15:24:28 ?         0:00 /usr/openv/netbackup/bin/nbsl
    root 11356     1  0 15:24:17 ?         0:00 /usr/openv/netbackup/bin/nbnos
    root 11391     1  0 15:24:29 ?         0:00 /usr/openv/netbackup/bin/nbsvcmon

MM Processes
------------
    root 11494 11364  0 15:30:37 ?         0:00 tldd
    root 11364     1  0 15:24:20 ?         0:00 /usr/openv/volmgr/bin/ltid
    root 11497 11364  0 15:30:39 ?         0:00 avrd
    root 11480     1  0 15:30:34 ?         0:00 vmd

沒有發現異常情況。

2.在master server上執行:

vmdareq -a

發現沒有bfepdb這個media server的資訊，決定重啟nbu程式。netbackup stop後bpps -a

NB Processes
------------

MM Processes
------------

3.ioscan -fnC tape

Class     I  H/W Path        Driver S/W State   H/W Type     Description
=========================================================================
tape      0  0/0/1/0.4.0     stape  CLAIMED     DEVICE       HP      C5683A
                            /dev/rmt/0m            /dev/rmt/0mnb          /dev/rmt/c0t4d0BESTn   /dev/rmt/c0t4d0DDSb 
                            /dev/rmt/0mb           /dev/rmt/c0t4d0BEST    /dev/rmt/c0t4d0BESTnb  /dev/rmt/c0t4d0DDSn 
                            /dev/rmt/0mn           /dev/rmt/c0t4d0BESTb   /dev/rmt/c0t4d0DDS     /dev/rmt/c0t4d0DDSnb
tape      7  0/10/0/0.97.26.255.1.3.0  stape  CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                            /dev/rmt/7m             /dev/rmt/7mn            /dev/rmt/c16t3d0BEST    /dev/rmt/c16t3d0BESTn
                            /dev/rmt/7mb            /dev/rmt/7mnb           /dev/rmt/c16t3d0BESTb   /dev/rmt/c16t3d0BESTnb
tape      8  0/10/0/0.97.26.255.1.3.1  stape  CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                            /dev/rmt/8m             /dev/rmt/8mn            /dev/rmt/c16t3d1BEST    /dev/rmt/c16t3d1BESTn
                            /dev/rmt/8mb            /dev/rmt/8mnb           /dev/rmt/c16t3d1BESTb   /dev/rmt/c16t3d1BESTnb
tape      3  0/12/0/0.97.25.255.1.3.1  stape  CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                            /dev/rmt/3m             /dev/rmt/3mn            /dev/rmt/c14t3d1BEST    /dev/rmt/c14t3d1BESTn
                            /dev/rmt/3mb            /dev/rmt/3mnb           /dev/rmt/c14t3d1BESTb   /dev/rmt/c14t3d1BESTnb
tape      4  0/12/0/0.97.25.255.1.3.2  stape  CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                            /dev/rmt/4m             /dev/rmt/4mn            /dev/rmt/c14t3d2BEST    /dev/rmt/c14t3d2BESTn
                            /dev/rmt/4mb            /dev/rmt/4mnb           /dev/rmt/c14t3d2BESTb   /dev/rmt/c14t3d2BESTnb

裝置也沒有什麼異常情況。

4.接著netbackup start，再手工啟動策略問題依然存在。

5.再次netbackup stop後執行bp.kill_all，徹底殺掉nbu程式，再netbackup start啟動nbu，vmdareq -a一切正常。

# netbackup start

NetBackup Database Server started.
NetBackup Notification Service started.
NetBackup Enterprise Media Manager started.
NetBackup Resource Broker started.
Media Manager daemons started.
NetBackup request daemon started.
NetBackup compatibility daemon started.
NetBackup Job Manager started.
NetBackup Policy Execution Manager started.
NetBackup Service Layer started.
NetBackup is not configured for clustering.
NetBackup Service Monitor started.

# vmdareq -a

Drive2 - AVAILABLE
     bfbkup UP
     erpdb UP
Drive3 - AVAILABLE
     bfbkup UP
     erpdb UP
HPUltrium2-SCSI0 - AVAILABLE
     bfbkup UP
     erpdb UP
HPUltrium2-SCSI1 - AVAILABLE
     bfbkup UP
     erpdb UP

6.結論

出現這種問題，可能是由nbu程式的異常造成的。但是正常的重啟可能仍然不能解決問題，這時候需要執行bp.kill_all指令碼來停止nbu的後臺駐留程式。