sys是数据库库中权限最高的用户，在登录时，我们可以用os认证的方式直接登录，也可以利用sqlplus “sys/your_password@your_tnsnames as sysdba”来登录。特别是对于后面的这种远程登录，在第三方的备份备份软件中需要配置。因此这个文件对 […]
hp开启异步IO后仿佛没生效
按理说，在正常情况下，hp主机开启了异步IO之后，主机的wio会有较大幅度的下降，在我们的系统中，wio一般会下降到10%以下。但是最近遇到的情况就非常奇怪，开启异步IO之后，观察wio却仍然很高，在30%～50%，业务忙时cpu idle在个位数。仿佛和没开wio一样。 检查的时候发现，相关参数都 […]
解决Legato问题，相信LTT吧！
最近遇到某省的legato备份问题，这个问题在春节后一来就遇到了。在legato界面，我们看到的报错是：
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…… 02/24/10 12:01:00 nsrd: savegroup info: starting db_arch (with 1 client(s)) 02/24/10 12:01:15 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:01:15 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:01:53 nsrd: Jukebox 'msl6000' failed: No such file or directory 02/24/10 12:01:53 nsrd: Jukebox 'msl6000' failed: No such file or directory 02/24/10 12:01:54 nsrd: media info: suggest mounting QWB507L2 on ah-db01 for writing to pool 'miscdb' 02/24/10 12:01:54 nsrd: media waiting event: Waiting for 1 writable volumes to backup pool 'miscdb' tape(s) on ah-db01 02/24/10 12:01:56 nsrd: Jukebox 'msl6000' failed: No such file or directory 02/24/10 12:01:56 nsrd: Jukebox 'msl6000' failed: No such file or directory 02/24/10 12:02:05 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:05 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:14 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:14 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:21 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:21 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:40 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:40 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:44 nsrd: shutting down remote daemons 02/24/10 12:02:45 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:45 nsrd: Jukebox 'msl6000' failed: Input/output error 02/24/10 12:02:45 nsrd: media info: Suggest manually labeling a new writable volume for pool 'dbreport' 02/24/10 12:02:45 nsrd: media event cleared: Waiting for 1 writable volumes to backup pool 'miscdb' tape(s) on ah-db01 02/24/10 12:02:45 nsrd: media waiting event: Waiting for 1 writable volumes to backup pool 'miscdb' tape(s) on ah_bak01 02/24/10 12:02:53 savegrp: group db_arch aborted. …… |
基本看到的情况是在备份的时候，开始做verify label的时候，报错No such file or directory和In […]