RMAN备份恢复RAC环境数据库的备份(九).docx

RMAN备份恢复——RAC环境数据库的备份（九）这篇介绍基于裸设备RAC备份的NFS MOUNT解决方案。上一篇介绍了通过建立ASM来解决归档日志的备份问题，其实这个问题还可以通过NFS MOUNT来解决。Oracle的官方文档给出的方法就是通过NFS MOUNT方式来实现。采用这个方法需要保证每个节点的归档目的地都是唯一的，并将这个归档目的地以NFS MOUNT方式加载到远端站点。首先在两个节点上分别建立归档的目的目录：# su - oracleSun Microsystems Inc. SunOS 5.8 Generic Patch October 2001$ mkdir /data1/archivelog1 /data1/archivelog2$ exit # hostnameracnode1# su - oracleSun Microsystems Inc. SunOS 5.8 Generic Patch October 2001$ mkdir /data1/archivelog1 /data1/archivelog2$ exit # hostnameracnode2在节点一设置目录的共享：# share -F nfs -o rw=racnode2 /data1/archivelog1在节点二设置目录的共享：# share -F nfs -o rw=racnode1 /data1/archivelog2在节点一加载节点二的目录：# mount racnode2:/data1/archivelog2 /data1/archivelog2在节点二加载节点一的目录：# mount racnode1:/data1/archivelog1 /data1/archivelog1在节点一上执行df –k：# df -kFilesystem kbytes used avail capacity Mounted on/dev/dsk/c1t0d0s03039584 6939814 31% //dev/dsk/c1t0d0s6 2053605 1048837 943160 53% /usr/proc 0 0 0 0% /procmnttab 0 0 0 0% /etc/mnttabfd 0 0 0 0% /dev/fd/dev/dsk/c1t0d0s1 2053605 600760 1391237 31% /varswap 8814576 16 8814560 1% /var/runswap 8814880 320 8814560 1% /tmp/dev/dsk/c1t1d0s725412617 9245022 74% /data/dev/dsk/c1t0d0s5172051% /opt/dev/dsk/c2t0d9s6 516335185 3998478 507173356 1% /data1/dev/dsk/c1t0d0s7 2205310 1310895 850309 61% /export/homeracnode2:/data1/archivelog2516335185 81325 511090509 1% /data1/archivelog2在节点二上执行df –k：# df -kFilesystem kbytes used avail capacity Mounted on/dev/dsk/c1t0d0s0855391% //dev/dsk/c1t0d0s6 2053605 775276 1216721 39% /usr/proc 0 0 0 0% /procmnttab 0 0 0 0% /etc/mnttabfd 0 0 0 0% /dev/fd/dev/dsk/c1t0d0s1 2053605 599018 1392979 31% /varswap 8606280 16 8606264 1% /var/run/dev/dsk/c2t500601603022E66Ad11986341 3862834 21% /nbuswap 8607504 1240 8606264 1% /tmp/dev/dsk/c1t1d0s7343309110% /data/dev/dsk/c2t500601603022E66Ad10s6516335185 81325 511090509 1% /data1/dev/dsk/c1t0d0s5859131% /opt/dev/dsk/c1t0d0s7 2053605 780414 121