kishor bhagwat wrote:
Not true. You can have zero data loss solutions - problem is...they need humungous bandwidth and/or they screw up your application response times.
Agreed. But practically, do these solutions ensure zero data loss? That would be utopia!
You have these options for Linux/*nix -
- journalling file system
- tar, gunzip
- dd, cp
- fsck
- taper, cdrw-taper
- linux single
- http://linux-ha.org/
- http://www.linuxvirtualserver.org/
- and so on...
none of these will work. you need to use proprietary solutions that will ...
True, proprietory software and hardware based solutions do exist. But that's not what we are looking for. The above options (recovery & availability) are the closest that open source can get to, especially Heartbeat and Failsafe http://oss.sgi.com/projects/failsafe/. Right? Does anyone know about any other open-source solution? I don't know how linux-ha will work over a WAN connection. Never done that. But it should be possible. Google brings up a few interesting links.
Nilesh.