[auton-users] /mnt/userdirs Reminder
Michael J. Baysek
mjbaysek at cs.cmu.edu
Sun Apr 12 11:17:08 EDT 2009
There are two situations you should prefer the userdirs partition to
BigPapa.
1) High performance storage. Reading and writing many files, or very
large files, as in the case of text processing, userdirs should be used
because the performance is much faster than BigPapa.
2) Large amount of storage. Or temporary shared [shared among LOPs]
storage.
Also, there are compelling reasons not to store "vital" data in the
userdirs partition.
1) The no-quota nature of this partition lets you write more data than
you could to your BigPapa home directory. This sounds great, but keep
in mind, so can everyone else. This means that other people's activity
does have a greater chance of affecting you on the userdirs partition
than it does on BigPapa.
2) It higher chance for downtime and data loss than BigPapa. The
userdirs partition was put into service an ad-hoc solution to supply
much needed disk space. It does not have the fault tolerance that
BigPapa has. You should be reminded of this when you consider storing
mission critical data there.
More information about the Autonlab-users
mailing list