Hi There is a good reason to split some directories. /home if set on / fs then any user can fill up your / fs and fail the server. /var might fill up very quickly in different logging bursts or application errors or loops and fail the entire server. No matter how much free space its got Same for /opt /tmp etc... You want to make sure nothing will write logs/data to your / fs. It is not a nice situation to have a full / fs. Sometimes it easy to recover and some times it is a real pain.
I always split them up. Another thing is that you really need to use hyperpav with a one disk config. z/VM hyperpav is not enough. You need it inside your linux as well. Offer Baruch On Dec 19, 2014 1:24 AM, "Mark Post" <[email protected]> wrote: > >>> On 12/18/2014 at 09:32 AM, "Levy, Alan" <[email protected]> wrote: > > Does it make sense in just setting up one mod 29 (32000+ cylinders, app > 21G) > > and let the btrfs use the whole thing instead of breaking it up into > smaller > > pieces (var, opt, home, etc) ? > > Without anything to back this up, my concern is that having everything on > one virtual device number might cause I/O performance problems. Hopefully > someone who does performance analysis for a living is looking at various > layouts and will talk about their results. > > > Mark Post > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
