Aaron Kulkis wrote: > James Knott wrote: >> Bill Anderson wrote: >>> There is no need to create the swap partitions as RAID drives. The >>> simple solution is to use the ionice command to set the I/O priority of >>> all swap partitions to the same value. The kernel then treats them in a >>> manner similar to RAID 0. For performance reasons, you don't want >>> anything to slow down swap. >>> >>> >> >> And what will happen, should a drive containing swap fail, while the >> system is running? Would you recommend that to someone when uptime is >> critical? >> > > If uptime were absolutely critical, I wouldn't be using > Linux or any standard Unix for that matter. I would be > have those apps running on QNX or a Stratus server. > > QNX is the only OS certified for "life and death" > equipment, such as hospital monitoring machines.
I wonder what their liability is if it fails. I'd love to see the EULA, just for grins. As for stratus, isn't it all about the hardware? Say, can't Linux run on some pretty high end hardware, come to think of it? We're about to install linux on big IBM iron here. But heck, even on a puny little dell, the uptime isn't bad: [EMAIL PROTECTED]:~> w 17:18:08 up 965 days, 4:48, 1 user, load average: 2.38, 2.34, 2.38 USER TTY LOGIN@ IDLE JCPU PCPU WHAT root pts/0 17:18 0.00s 0.12s 0.02s w [EMAIL PROTECTED]:~> Joe -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
