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The inode I never knew
File contents and metadata When you change permissions on a file, the file contents aren't affected. The change is made to the i-node. So what's an inode? A quick visit to Wikipedia explains: "An inode stores all the information about a regular file , directory , or other file system object, except its data and name. " - inode, from Wikpedia All of that file "header" information is known as metadata. Here's how it is explained by the whitepaper, Inproving Database Performance with the AIX Concurrent I/O . My emphases... [More]
Tags: ls ctime file mtime lock aix istat inode find contents metadata |
UPDATED: Long user names in AIX
User names on AIX used to be restricted to eight characters. That's still the default setting but since AIX 5.3 you can increase the length up to an amazing 256 characters, if users really want to spend the morning logging in. You can view the current maximum login name using: lsattr –El sys0 | grep max_logname Update: I incorrectly had listed the parameter as max_login. The correct parameter is max_logname. Thanks to jabber44 for the correction. or via smit System Environments -> Change / Show Characteristics of... [More]
Tags: long login names user max_logname find cut aix permission login_name_max paste truncate chown putty tar who |
