NBU故障解决

之前备份是正常的。

虚拟带库重启后，备份时提示：Robotic library is down on server

“驱动器显示”里驱动器是UP状态，但在驱动器控制这一栏由原先的TLD变为了AVR 查看驱动器时提示“Unable to update drive path infromation. A SCSI inquiry sent to the device has Failed（16）”。

重启过MasterServer，但问题依旧。

原因是虚拟带库重启后，与之相连的两台小机Media Server不能正常找到虚拟带库的驱动器及机械手。

进入两台小机，输入-ioscan -fuC tape和-ioscan后，就找到了与其相连虚拟带库上的驱动器及机械手。（如果还找不到就多试几次）

重启Master Server及Media Server上的NBU服务，并在主服务器上“Robots”那里右键—》“inventory Robot”之后，就可以正常备份了。

nbu备份报robotic library is down on server

Robotic library is down 表示磁带库有问题，检查一下磁带库的状态是否正常，机房人员检查之后确认是正常的

4、在nbu的图形界面，重新扫描硬件，点击Configure Storage Devices后，一直点击next,直到finish

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/c3t2d0BESTnb /dev/rmt/c3t2d0DDSn /dev/rmt/0mn /dev/rmt/c3t2d0DDS /dev/rmt/c3t2d0DDSnb tape 3 0/4/1/0.97.26.255.1.3.0 stape Ultrium 2-SCSI

/dev/rmt/3m /dev/rmt/c3t2d0BEST /dev/rmt/c3t2d0BESTb CLAIMED DEVICE HP /dev/rmt/3mn /dev/rmt/c18t3d0BEST /dev/rmt/c18t3d0BESTn /dev/rmt/3mb /dev/rmt/c18t3d0BESTb /dev/rmt/c18t3d0BESTnb tape 7 0/4/1/0.97.26.255.1.3.1 stape Ultrium 2-SCSI

/dev/rmt/4m /dev/rmt/c18t3d1BEST /dev/rmt/c18t3d1BESTn /dev/rmt/4mb /dev/rmt/c18t3d1BESTb /dev/rmt/c18t3d1BESTnb tape 5 0/4/1/1.97.25.255.1.3.1 stape Ultrium 2-SCSI

/dev/rmt/5m /dev/rmt/c13t3d1BEST /dev/rmt/c13t3d1BESTn /dev/rmt/5mb /dev/rmt/c13t3d1BESTb /dev/rmt/c13t3d1BESTnb tape 6 0/4/1/1.97.25.255.1.3.2 stape Ultrium 2-SCSI

/dev/rmt/6m /dev/rmt/c13t3d2BEST /dev/rmt/c13t3d2BESTn /dev/rmt/6mb /dev/rmt/c13t3d2BESTb /dev/rmt/c13t3d2BESTnb OK，故障解决。

CLAIMED CLAIMED CLAIMED /dev/rmt/3mnb DEVICE HP /dev/rmt/4mn /dev/rmt/4mnb DEVICE HP /dev/rmt/5mn /dev/rmt/5mnb DEVICE HP /dev/rmt/6mn /dev/rmt/6mnb

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