how to make my RAID device WORM(write once and read many)

[Lowell Gilbert]

Please don't top-post.

prasadam kumar <prasadamkumar at yahoo.com> writes:

> Thanks for responding to my query,
> actually it is a raid5 storage device it contains
> firewire and usb ports, through this
> interface a user can store data to the  raid5 device
> irrespective of file system.
> once he copied data to the device it should be
> immutable(i.e cannot be modify and delete).
> Can u suggest any approach to achieve this task.

If the "system immutable" and "system undeletable" flags are not good
enough for what you want, then the OS can't help you, and you will
need a hardware solution.