问题描述
今天一个客户系统遇到一个问题,RAC的一个CRS节点无法启动,当然检查状态时遇到CRS-0184错误:
[root@rac2 tmp]# /opt/oracle/product/10.2.0/crs10g/bin/crs_stat -t CRS-0184: Cannot communicate with the CRS daemon.
在系统的message文件里记录了一系列的错误提示:
[root@rac2 tmp]# tail -20 /var/log/messages Dec 1 13:34:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5234. Dec 1 13:34:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5129. Dec 1 13:35:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.4974. Dec 1 13:35:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5234. Dec 1 13:35:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5129. Dec 1 13:36:46 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.4974. Dec 1 13:36:47 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5234. Dec 1 13:36:47 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5129. Dec 1 13:37:47 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.4974. Dec 1 13:37:47 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5234. Dec 1 13:37:47 rac2 logger: Cluster Ready Services waiting on dependencies. Diagnostics in /tmp/crsctl.5129.
专家解答
检查crsctl的跟踪文件发现如下错误,原来是OCR设备不能访问:
[root@rac2 tmp]# cat /tmp/crsctl.4974 OCR initialization failed accessing OCR device: PROC-26: Error while accessing the physical storage Operating System error [No such file or directory] [2]
再进一步的检查,发现主机端这个节点无法发现存储,fdisk -l输出仅有本地存储:
[root@rac2 ~]# fdisk -l Disk /dev/cciss/c0d0: 440.3 GB, 440346238976 bytes 255 heads, 63 sectors/track, 53535 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/cciss/c0d0p1 * 1 13 104391 83 Linux /dev/cciss/c0d0p2 14 20410 163838902+ 83 Linux /dev/cciss/c0d0p3 20411 22960 20482875 83 Linux /dev/cciss/c0d0p4 22961 53535 245593687+ 5 Extended /dev/cciss/c0d0p5 22961 24235 10241406 83 Linux /dev/cciss/c0d0p6 24236 25510 10241406 83 Linux /dev/cciss/c0d0p7 25511 26785 10241406 83 Linux /dev/cciss/c0d0p8 26786 27829 8385898+ 82 Linux swap /dev/cciss/c0d0p9 27830 53535 206483413+ 83 Linux
看来需要派人去机房查看为什么主机无法发现存储了。
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