Messages in this thread | | | Subject | High-availability question | From | Modemch <> | Date | 22 Jul 1999 17:44:38 -0400 |
| |
Hi All.
Hope this is not too much off-topic. I have a client who wants to setup a high-availability linux server network. It's an ISP, so we're talking mail/web/ftp/dns/etc. I would like to have 2 identical boxes, with identical harddisks partitioned the same way, and to have the main box constantly synchronize it's filesystem with the standby box, so that when it fails, the standby just does an IP takeover, and has all the recent data in place. I would really like to do this on the lowest possible level, something like 'write this block to head x, cylinder y', instead of doing cp over nfs every 5 minutes or so. Is there anything available that would do something like that? If not, how easy would adding this to the kernel be? Can it be done it all? My idea was to have the standby box run a custom init binary, that would just sync the disks and wait for the other box to die. When it dies, it runs the real init, everything comes up, and the box takes over.
Thanks in advance.
-- Regards, Modemch
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |