On Wed, Feb 26, 2014 at 4:21 PM, Les Mikesell <lesmikesell@xxxxxxxxx> wrote:
> On Wed, Feb 26, 2014 at 3:12 PM, <m.roth@xxxxxxxxx> wrote:
>>>>
>>> Is there a way to get /home, /var, and /opt installed as directories
>>> on that other "one big partition"? /var in particular has an odd mix
>>> of OS and 'your' data and logs that may turn out to be big. And you
>>> may not know ahead of time what to allocate for it as a separate mount
>>> point.
>>>
>> Here at work, /home is *always* NFS-mounted. Even so, I'd think 250G is
>> easily big enough for / to include /var, even with a moderately large d/b
>> there.
>
I think 250G is overkill unless you have need for all that
space. A lot of my installs are
512MB-1GB : /boot
2GB : /
2-4GB : /usr, lvm
2-4GB : /var, lvm
--- optional ---
XGB : /usr/local, lvm
XGB : /var/something for apache or mysql or storing penguins, lvm
/boot is never in a lvm and I usually do not put / in a lvm either;
the rest are always in lvm so I can move and resize them as needed.
And even that might be way too much:
My kvm-based vm host (centos 6.4):
[root@vmhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 1.9G 638M 1.2G 35% /
tmpfs 7.7G 0 7.7G 0% /dev/shm
/dev/sda1 472M 149M 299M 34% /boot
/dev/mapper/vmhost_vg0-usr
4.0G 1.5G 2.4G 38% /usr
/dev/mapper/vmhost_vg0-var
4.0G 1.2G 2.7G 30% /var
fileserver:/home/raub
197G 163G 35G 83% /home/raub
[root@vmhost ~]#
My nagios/rsyslog thingie:
[raub@scan ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda2 2.0G 675M 1.3G 36% /
tmpfs 246M 0 246M 0% /dev/shm
/dev/vda1 504M 106M 373M 23% /boot
/dev/mapper/nagios_vg0-usr 2.0G 584M 1.3G 31% /usr
/dev/mapper/nagios_vg0-var 2.0G 440M 1.5G 23% /var
fileserver:/logs 20G 651M 19G 4% /var/log/syslog
[raub@scan ~]$
As you can see, even 2GB is overkill for my root partition. Remember:
if you are using lvm you can move the other partitions to another
drive or raid without rebooting. And, you can set all that during the
install without losing your sleep.
> But as a generic question: is there a way to get the installer to put
> some top-level directories into subdirectories on a different volume
> so they share space but aren't part of the root volume? You can do
> each as a separate mount point, but sometimes I want the effect you
> get with symlinks - which involves some awkward juggling for
> system-installed directories that already have contents.
>
> --
> Les Mikesell
> lesmikesell@xxxxxxxxx
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