RE: Accidentally Delete *.dbf Files, OH NO!!!

Obviously your SA is voting that you should use raw partitions instead of file system files. Of course then the nefarious forces in opposition to using raw will respond by dd'ing backups in the wrong direction and copy the contents of some recycled tape over the top of your data.

Root users tend to be able to circumvent any prophylaxis. Various alias replacements for the usual rm have been suggested, but of course the administrator will know where the "REAL" rm lives and will use it when cleaning up to avoid the hassle of being told not to delete files that look like good solutions to the space problem. (Or, more legitimately: When they inadvertantly cd to the wrong whole directory they mean to delete from and intentionally use the rm normal version to delete *.dbf, everything goes poof).

I'm not saying it is hopeless, but a creative lunatic with root authority is nearly impossible to stop.

Good luck!

mwf

-----Original Message-----

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Michael Fontana Sent: Monday, January 31, 2005 6:23 PM
To: Oracle-L_at_freelists.org
Subject: Accidentally Delete *.dbf Files, OH NO!!!

I have been working with Solaris for several years now. We have had a rare but particularly debilitating problem where certain people who will remain nameless, in an effort to "clean up" disk space, have nailed a .dbf file or two. I know I should have the solution to this on close at hand, but I seem to recall this was difficult, if not impossible, on other Unix platforms (such as AIX), because the file would be "locked" or "in use", and the nefarious "rm" command would fail. Alas, Solaris is all too willing to comply when asked.

Is there something that can be done, at the OS or Oracle level, to prevent such a thing? Needless to say, the "whackers" are using root to enter the command, so changing permissions would accomplish little. They are already set to only allow "oracle" write access.

Any help or even ridiculing chuckles and admonitions would be greatly appreciated.

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http://www.freelists.org/webpage/oracle-l Received on Tue Feb 01 2005 - 17:06:47 CST