Hi all,
As you all probably know. if the root filesystem is full on boot, XCP rarely
boots properly(and most times you don't even reach a login prompt).
In most cases, admins dont know what to do in the situation.
To combat this, I've started to develop an early init script, which
intelligently tries to free enough space to boot properly(I estimate around
50MB is safe), before any of the xen related tools and XAPI starts. I
believe it will make the product more resilient.
I'm thinking up strategies on how to free up space. I've come up with the
following
1) Clean out /tmp
2) gzip /var/log/{xensource.log.*,SMlog.log.*,messages.*}, using /dev/shm as
temporary space.
3) Check the viability of moving files from the main partition, to the
backup partition, move log files from one to the other.
4) Just deleting log files if all else fails or maybe drop to a login
prompt?
Also, is there a way I can tell XAPI to alert the user that this has
happened, taking into account that this will be before XAPI is started?
Perhaps generating an alert and placing it in /var/xapi/blobs/messages?
Thanks,
David
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