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本帖最后由 s_p_kvw3000 于 2012-09-11 10:37 编辑
环境:NetBackup 7.1,Suse 10 x64(media & client)
每个media上配置了3个光纤口用于FT Media,每个口下面连接3-6个SAN Client,每个Client上配置2个备份策略。media的最大FT连接数设置为16。另配置NUMBER_DATA_BUFFERS=16,SIZE_DATA_BUFFERS=262144。
存储介质为VTL,配置8个驱动器,并设置MPX为4。
现象:其中一台服务器在批量(约15个)开始备份任务后,仅3-5个任务可以正常执行,其余任务均报media open error (83)错误,详细日志如下:- 09/11/2012 01:10:57 - Info nbjm (pid=5246) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=23935, request id:{DE2AF8E8-FB72-11E1-B128-3914357F5B6B})
- 09/11/2012 01:10:57 - requesting resource Any
- 09/11/2012 01:10:57 - requesting resource nbumaster.NBU_CLIENT.MAXJOBS.cbp39b
- 09/11/2012 01:10:57 - requesting resource nbumaster.NBU_POLICY.MAXJOBS.cbp39b.file
- 09/11/2012 01:10:57 - granted resource nbumaster.NBU_CLIENT.MAXJOBS.cbp39b
- 09/11/2012 01:10:57 - granted resource nbumaster.NBU_POLICY.MAXJOBS.cbp39b.file
- 09/11/2012 01:10:57 - granted resource 00A065
- 09/11/2012 01:10:57 - granted resource Drive001
- 09/11/2012 01:10:57 - granted resource nbumedia1-hcart3-robot-tld-0
- 09/11/2012 01:10:57 - granted resource TRANSPORT
- 09/11/2012 01:10:57 - estimated 8402934 kbytes needed
- 09/11/2012 01:10:57 - Info nbjm (pid=5246) started backup job for client cbp39b, policy cbp39b.file, schedule Full on storage unit nbumedia1-hcart3-robot-tld-0
- 09/11/2012 01:10:57 - started process bpbrm (pid=10221)
- 09/11/2012 01:10:59 - end writing
- media open error (83)
复制代码 观察备份期间的服务器状态(Devices-Media Servers-View FT Conncetions),显示此时仅有3个连接,而与其配置相似的另一台media上则同时有8个连接。而且出现问题的客户端也不是固定的。查看media和client上的日志,只在报告里发现有伴随的pipe open failed(17)记录。
请各位大侠帮忙分析一下,谢谢。另外,NBU的FT介质服务器每个端口最多可以同时运行多少个备份任务(任务所属客户端不同)?
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