Originally posted by: aashishgr

hello friend

i require chattr like functionalities in aix 6.1 .I was unable to find one.

I want a file to be immutable and appendable ,are there any thing to achive that in aix.

please help!!!!1

Originally posted by: GarlandJoseph

There is no equivalent function in aix...try using CHMOD (The GPFS filesystem that can run on AIX does have immutable and appendable options.

Originally posted by: aashishgr

First of all Thank You Joseph

 But can we install gpfs package in jfs2 file system to use the mmchattr functionalities available with gpfs

And can immutability is achived via CHMOD , I also tried ACL but root can delete such files any way.

So please ,can you help me with this.

Originally posted by: Wouter Liefting

The "immutable" and "append only" attributes are attributes of the file system itself. They're supported in ext2/3/4 (Linux) and GPFS (both on Linux and AIX) but not on JFS/JFS2 (AIX).

So it's not enough to install the GPFS package: You also need to convert your JFS2 filesystem to GPFS. (Probably through a backup/restore operation: There is no "upgrade" path from JFS2 to GPFS, or something like that.)

I'm curious about your use case though. Yes, root can change the permissions and ACLs through chmod, but root can also change the immutable and append only flags. So it doesn't matter whether a file is read only or immutable: root will be able to change that file anyway, and there is no effective way of preventing this. Not on AIX and not on Linux. Indirectly you might be able to achieve something like that through SELinux or RBAC though.