Re: freezing a drive

"linux_101" <geetakhetan@xxxxxxxxxxx> wrote in message
news:1156894688.466880.256130@xxxxxxxxxxxxxxxxxxxxxxxxxxxx

I couldnt find much online about api's that allow freezing a drive.
Any pointers are highly appreciated.

What do you mean by "freezing a drive"? Simply removing write
permissions?

Actually preserving the state at a given time T. So if I were to say,
backup a partition, no matter if someone is accessing it time T+n, I
should have the state of when i issue the command at time T. Any idea
how i might go about it ?

As root:
# wall "Going offline for backup in 3 minutes. Please save your work \
NOW and log out."; sleep 180; init 1; ${backup_command}; init [35]
.

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