昨天nbu的几个备份策略突然报错

(98) error requesting media (tpreq)

具体的信息是这样的

06/18/2008 12:00:24 - requesting resource bwdb-hcart2
06/18/2008 12:00:24 - requesting resource bkup.NBU_CLIENT.MAXJOBS.bwdb
06/18/2008 12:00:24 - requesting resource bkup.NBU_POLICY.MAXJOBS.bw_db_arch
06/18/2008 12:00:25 - awaiting resource bkup.NBU_POLICY.MAXJOBS.bw_db_arch. Will retry logical later.
06/18/2008 12:24:19 - awaiting resource bwdb-hcart2. Waiting for resources.
          Reason: Robotic library is down on server, Media server: bwdb,
          Robot Type(Number): TLD(0), Media ID: N/A, Drive Name: N/A,
          Volume Pool: DB_bw_arch, Storage Unit: bwdb-hcart2, Drive Scan Host: N/A
06/18/2008 12:37:14 - granted resource bkup.NBU_CLIENT.MAXJOBS.bwdb
06/18/2008 12:37:14 - granted resource bkup.NBU_POLICY.MAXJOBS.bw_db_arch
06/18/2008 12:37:14 - granted resource U525L2
06/18/2008 12:37:14 - granted resource HPUltrium2-SCSI1
06/18/2008 12:37:14 - granted resource bwdb-hcart2
06/18/2008 12:37:17 - started process bpbrm (pid=15576)
06/18/2008 12:37:17 - connecting
06/18/2008 12:37:25 - connected; connect time: 0:00:00
06/18/2008 12:37:30 - mounting U525L2
06/18/2008 12:51:48 - Error bptm (pid=15589) error requesting media, TpErrno = Robot operation failed
06/18/2008 12:54:57 - Warning bptm (pid=15589) media id U525L2 load operation reported an error
06/18/2008 12:54:58 - current media U525L2 complete, requesting next media Any
06/18/2008 13:29:16 - Error bptm (pid=15589) NBEMM returned an extended error status: invalid error number (2005023)
06/18/2008 13:29:19 - end writing
error requesting media (tpreq) (98)

手工发起备份报错如下

06/19/2008 09:02:29 - requesting resource r3prd-hcart2-robot-tld-0
06/19/2008 09:02:29 - requesting resource bkup.NBU_CLIENT.MAXJOBS.r3prd
06/19/2008 09:02:29 - requesting resource bkup.NBU_POLICY.MAXJOBS.r3_db_arch
06/19/2008 09:02:30 - awaiting resource r3prd-hcart2-robot-tld-0. Waiting for resources.
          Reason: Robotic library is down on server, Media server: r3prd,
          Robot Type(Number): TLD(0), Media ID: N/A, Drive Name: N/A,
          Volume Pool: DB_r3_arch, Storage Unit: r3prd-hcart2-robot-tld-0, Drive Scan Host: N/A

提示机械臂down掉了，使用ioscan检查带库状态

#[/]ioscan -fnCtape
Class     I  H/W Path       Driver   S/W State   H/W Type     Description
==========================================================================
tape      0  0/1/1/1.2.0    stape    CLAIMED     DEVICE       HP      C5683A
                           /dev/rmt/0m            /dev/rmt/0mnb          /dev/rmt/c3t2d0BESTn   /dev/rmt/c3t2d0DDSb 
                           /dev/rmt/0mb           /dev/rmt/c3t2d0BEST    /dev/rmt/c3t2d0BESTnb  /dev/rmt/c3t2d0DDSn 
                           /dev/rmt/0mn           /dev/rmt/c3t2d0BESTb   /dev/rmt/c3t2d0DDS     /dev/rmt/c3t2d0DDSnb
tape      3  0/4/1/0.97.26.255.1.3.0  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/3m             /dev/rmt/3mn            /dev/rmt/c18t3d0BEST    /dev/rmt/c18t3d0BESTn
                           /dev/rmt/3mb            /dev/rmt/3mnb           /dev/rmt/c18t3d0BESTb   /dev/rmt/c18t3d0BESTnb
tape      7  0/4/1/0.97.26.255.1.3.1  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/4m             /dev/rmt/4mn            /dev/rmt/c18t3d1BEST    /dev/rmt/c18t3d1BESTn
                           /dev/rmt/4mb            /dev/rmt/4mnb           /dev/rmt/c18t3d1BESTb   /dev/rmt/c18t3d1BESTnb
tape      5  0/4/1/1.97.25.255.1.3.1  stape    NO_HW       DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/5m             /dev/rmt/5mn            /dev/rmt/c13t3d1BEST    /dev/rmt/c13t3d1BESTn
                           /dev/rmt/5mb            /dev/rmt/5mnb           /dev/rmt/c13t3d1BESTb   /dev/rmt/c13t3d1BESTnb
tape      6  0/4/1/1.97.25.255.1.3.2  stape    NO_HW       DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/6m             /dev/rmt/6mn            /dev/rmt/c13t3d2BEST    /dev/rmt/c13t3d2BESTn
                           /dev/rmt/6mb            /dev/rmt/6mnb           /dev/rmt/c13t3d2BESTb   /dev/rmt/c13t3d2BESTnb

发现其中一块光纤卡上的两个设备连接不上了，再查看光纤卡的状态

#[/]ioscan -fnCfc
Class     I  H/W Path  Driver S/W State   H/W Type     Description
=================================================================
fc        0  0/4/1/0   fcd  CLAIMED     INTERFACE    HP 2Gb Dual Port PCI/PCI-X Fibre Channel Adapter (Port 1)
                      /dev/fcd0
fc        1  0/4/1/1   fcd  CLAIMED     INTERFACE    HP 2Gb Dual Port PCI/PCI-X Fibre Channel Adapter (Port 2)
                      /dev/fcd1

光纤卡状态正常。到机房查看硬件设备状态，发现有一块SCSI卡无信号灯闪烁，于是重启带库，带库重启后状态正常，再扫描带机

#[/]ioscan -fnCtape
Class     I  H/W Path       Driver   S/W State   H/W Type     Description
==========================================================================
tape      0  0/1/1/1.2.0    stape    CLAIMED     DEVICE       HP      C5683A
                           /dev/rmt/0m            /dev/rmt/0mnb          /dev/rmt/c3t2d0BESTn   /dev/rmt/c3t2d0DDSb 
                           /dev/rmt/0mb           /dev/rmt/c3t2d0BEST    /dev/rmt/c3t2d0BESTnb  /dev/rmt/c3t2d0DDSn 
                           /dev/rmt/0mn           /dev/rmt/c3t2d0BESTb   /dev/rmt/c3t2d0DDS     /dev/rmt/c3t2d0DDSnb
tape      3  0/4/1/0.97.26.255.1.3.0  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/3m             /dev/rmt/3mn            /dev/rmt/c18t3d0BEST    /dev/rmt/c18t3d0BESTn
                           /dev/rmt/3mb            /dev/rmt/3mnb           /dev/rmt/c18t3d0BESTb   /dev/rmt/c18t3d0BESTnb
tape      7  0/4/1/0.97.26.255.1.3.1  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/4m             /dev/rmt/4mn            /dev/rmt/c18t3d1BEST    /dev/rmt/c18t3d1BESTn
                           /dev/rmt/4mb            /dev/rmt/4mnb           /dev/rmt/c18t3d1BESTb   /dev/rmt/c18t3d1BESTnb
tape      5  0/4/1/1.97.25.255.1.3.1  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/5m             /dev/rmt/5mn            /dev/rmt/c13t3d1BEST    /dev/rmt/c13t3d1BESTn
                           /dev/rmt/5mb            /dev/rmt/5mnb           /dev/rmt/c13t3d1BESTb   /dev/rmt/c13t3d1BESTnb
tape      6  0/4/1/1.97.25.255.1.3.2  stape    CLAIMED     DEVICE       HP      Ultrium 2-SCSI
                           /dev/rmt/6m             /dev/rmt/6mn            /dev/rmt/c13t3d2BEST    /dev/rmt/c13t3d2BESTn
                           /dev/rmt/6mb            /dev/rmt/6mnb           /dev/rmt/c13t3d2BESTb   /dev/rmt/c13t3d2BESTnb

OK，故障解决。