Re: [Xen-users] My future plan

[Michael Schmidt <michael.schmidt@xxxxxxxxxx>]

Am 08.06.10 16:12, schrieb philip tricca:
> Jonathan,
>
> Michael Schmidt wrote:
> > Hi Jonathan,
> >
> > you should think about flash or SD cards as xen-boot-drive.
> > This provides you lower costs and higher energy efficiency.
> > If you mount /tmp and /var/log to an tmpfs, this disks works very 
> > well and long.
> Be careful mounting a tmpfs on /var/log.  If you're running on SSDs 
> it's  good to minimize disk writes but in the event of a nasty error 
> that brings down your system you won't have any error logs to let you 
> know what happened when it comes back up.
> Best thing to do when you mount tmpfs on /var/log is to make a syslog 
> rule that logs ERROR messages to storage that will survive a reboot. 
> Something like:
> *.err    /var/persistent.log
>
> in /etc/rsyslog.conf should work.
Best practice: Log over the network (with e.g. syslog-ng) to a central 
syslog server.
Best Regards
-Michael Schmidt


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