Linux Hardware RAID Configuration

Jeff Garland jeff at crystalclearsoftware.com
Mon Mar 6 07:10:38 MST 2006


Kevin Brown wrote:

> Welcome to the reality of system reliability.  You think this is a pain, 
> try developing a system that will give 99.999% uptime. That is only 
> around 5 minutes of downtime in an entire YEAR.  One, maybe two reboots 
> of most systems would come very close to that not counting the time that 
> might be needed to reliably shutdown and start up various services and 
> applications.  This is where failover and multiple levels of system 
> level redundancy come into play (e.g. dual power supplies, UPS, failover 
> NIC connections, failover hardware (heartbeat software) or round 
> robin/load balancing systems).

I've spent a good part of my career working on such systems so I know 
exactly what you're talking about -- but I'm a software developer -- not 
the sysadmin that sets up the RAID stuff -- so the details here are new 
to me ;-)  As I said before, my requirements aren't for a high 
availability server -- just trying to reduce the window of possible data 
loss a little more.  If one of the 2 drives ever fail I could surely 
continue with no problem for a long time before replacing it.

Thx,

Jeff



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