Re: [HTCondor-users] change spool file location from the local administration machine to a network one

[Rich Pieri <ratinox@xxxxxxx>]

--On March 25, 2013 9:10:57 AM -0500 Christopher Harrison 
<harrison@xxxxxxxxxxxxxxxx> wrote:

> I might recommend a SSD for the submit machine's "spool" area.   I have
> experienced extremely fast io access, reduced latency and improved
> throughput just by installed the ssd's.   Just one item you might want to
> consider.

I actively discourage the use of flash-based SSDs for anything that 
qualifies as mission critical. They're expensive, they're disposable, and 
they're not reliable under power faults. Use RAM-based SSDs instead. They 
cost more than flash but they're faster than flash, they're more dependable 
than flash, and they don't have limited write life like flash.

If you want to do it on the cheap then try a RAM disk on the master for 
spooling submissions. You lose the dependability of battery-backed RAM so 
you lose your entire spool area on a power fault but that's what going 
cheap gets you. :)

--
Rich Pieri <ratinox@xxxxxxx>
MIT Laboratory for Nuclear Science