AIX系统备份问题

janfy_yag

我在进行AIX系统备份时操作如下：\r\n#tctl -f /dev/rmt0 rewind\r\n#smit mksysb\r\n在\"备份设备或文件\"中添入\"/dev/rmt0\"后回车.\r\n执行结果如下：\r\n                                                           COMMAND STATUS\r\n\r\nCommand: OK            stdout: yes           stderr: no\r\n\r\nBefore command completion, additional instructions may appear below.\r\n\r\n\r\nCreating information file (/image.data) for rootvg..\r\n\r\nCreating tape boot image......\r\nbosboot: Boot image is 25562 512 byte blocks.\r\n\r\n***** ATTENTION *****\r\nThe boot image you just created might fail to boot because\r\nthe size exceeds the system limit.  For information about\r\nfixes or workarounds, see /usr/lpp/bos.sysmgt/README.\r\n***** ATTENTION *****\r\n\r\n\r\nCreating list of files to back up..\r\nBacking up 95131 files..............................\r\n2373 of 95131 files (2%)..............................\r\n12852 of 95131 files (13%)..............................\r\n23834 of 95131 files (25%)..............................\r\n28695 of 95131 files (30%)..............................\r\n55299 of 95131 files (58%)..............................\r\n87720 of 95131 files (92%).......................\r\n95131 of 95131 files (100%)\r\n0512-038 mksysb: Backup Completed Successfully.\r\n\r\nbosboot: Boot image is 25562 512 byte blocks.\r\n\r\n***** ATTENTION *****\r\nThe boot image you just created might fail to boot because\r\nthe size exceeds the system limit.  For information about\r\nfixes or workarounds, see /usr/lpp/bos.sysmgt/README.\r\n***** ATTENTION *****\r\n\r\n请问：\r\n1、我备份的系统有多大? \r\n2、bosboot: Boot image is 25562 512 byte blocks.这个boot image 的大小是多少，如何看？\r\n3、里面提示的attention部分是指备份boot image失败，不能用吗？还有就是提到的system limit值是多少呢?

herosongdf008

blocks好像是512字节，

dugong

1、单纯从这里看不出有多大\r\n2、写的很清楚，25562x512个字节\r\n3、attention提示说这个系统备份在启动机器的时候，也许会失败，并不是指备份失败了，这个limit值要看你机器里自己设置有多大了。

yddll

/usr/lpp/bos.sysmgt/README\r\n\r\n为什么就不看呢

athlonxeon

是否失败可以测试一下

janfy_yag

非常感谢楼上几位的解答