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Re: Are the assigned capacities sufficient for my setup?

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On 7/29/2020 11:38 AM, Charlie Gibbs wrote:
> As for partition sizing, I set up my machines with three partitions:
> /, /home, and swap.

	I don't implement a separate partition for /home.  Instead, I place it 
on my data array where it gets backed up nightly, then a create a 
symlink to /RAID/home from the root directory.  That way, the user's 
files can grow to be as gargantuan as they like, they have protected 
backups, and I don't have to worry about upgrades.

>  If you're going to be installing lots of software
> on your machine (especially games), I'd recommend setting aside 20 or
> 30 gigabytes for /, since /usr can get pretty large.  I learned this
> the hard way after getting caught behind the 8-ball after a kernel
> upgrade.  Fortunately, gparted came to the rescue, allowing me to
> shave 10GB off /home and give it to /.  I use the old rule of thumb
> of twice memory size for swap, and give what's left to /home.

	By moving /home to the data array, I leave plenty of breathing space 
for /.  Since I am using SSDs for booting, I get a little generous and 
use 40GB total of swap - 20G from each drive - with 16G of memory.  I 
allocate a generous 200M of space to a /boot partition on each drive 
assembled into a RAID 1 array formatted as ext2.  Since /boot almost 
never gets written, there is no need for journalling.  That leaves a 
full 98G for / on a pair of 128G SSDs.  These can be had for as little 
as $18 each, these days.

> You definitely want /home in its own partition - it makes life
> much easier when doing upgrades, since you can completely wipe
> out / while leaving /home intact.  (Needless to say, though, I
> back up /home regularly, plus /etc and /usr for good measure.)

	I agree /home is best kept separate from /, but I disagree it is better 
to give it it's own partition on a NAS or file server.  I agree it is a 
good idea on a workstation or an embedded system, where all of the 
partitions may be somewhat limited, and in particular where there may be 
only a single hard drive or a single set of array spindles.  On a NAS or 
file server, however, the data repository needs to be huge, and given 
that /home is a lot more volatile than /, or especially /boot, I think 
putting /home on the data repository is a better idea.  After all, why 
limit its size while simultaneously eating up space that some day might 
be needed by /?  That, plus the drive(s) used by the boot system will 
likely last a lot longer if not subjected to the thrashing inherent in 
the /home directories.

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Re: Are the assigned capacities sufficient for my setup? Charlie Gibbs <cgibbs@surfnaked.ca> - 2020-07-29 20:10 +0200
  Re: Are the assigned capacities sufficient for my setup? David Wright <deblis@lionunicorn.co.uk> - 2020-07-30 04:20 +0200
  Re: Are the assigned capacities sufficient for my setup? Stefan Monnier <monnier@iro.umontreal.ca> - 2020-07-30 04:40 +0200
  Re: Are the assigned capacities sufficient for my setup? Leslie Rhorer <lesrhorer@att.net> - 2020-08-02 02:30 +0200
    Re: Are the assigned capacities sufficient for my setup? Dan Ritter <dsr@randomstring.org> - 2020-08-02 05:50 +0200
      Re: Are the assigned capacities sufficient for my setup? David Wright <deblis@lionunicorn.co.uk> - 2020-08-02 06:20 +0200
      Re: Are the assigned capacities sufficient for my setup? Leslie Rhorer <lesrhorer@att.net> - 2020-08-02 21:20 +0200
        Re: Are the assigned capacities sufficient for my setup? David Wright <deblis@lionunicorn.co.uk> - 2020-08-02 22:00 +0200
          Re: Are the assigned capacities sufficient for my setup? Leslie Rhorer <lesrhorer@att.net> - 2020-08-02 23:40 +0200
            Re: Are the assigned capacities sufficient for my setup? David Wright <deblis@lionunicorn.co.uk> - 2020-08-11 06:20 +0200

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