How to check Partitions free disk space in F5?

The partitions are actually each a set of logical volumes. Before the free space on a logical volume can be checked it's need to be mounted. I wrote a little perl script that can help you get this info.

!/usr/bin/perl -W

use strict;

my $lvs = '/sbin/lvs';

open(FH,"$lvs|");
while() {
    if(/([A-Za-z0-9\.-_]+)\s+([A-Za-z0-9\.\-_]+)\s+([a-z\-]+)/) {
        if($3 eq "-wi-a----") {
            lv_usage($1,$2);
        }
        else {
            df_usage($1,$2);
        }
    }
}
close FH;


sub lv_usage {
    my $lv = shift;
    my $vg = shift;

    print "\nDisk usage for $lv\n";
    mkdir "/mnt/$lv";
    system("/bin/mount /dev/$vg/$lv /mnt/$lv -o ro,user");
    system("/bin/df -h /mnt/$lv");
    system("/bin/umount /mnt/$lv");
    rmdir "/mnt/$lv";
}

sub df_usage {
    my $lv = shift;
    my $vg = shift;

    print "\nDisk usage for $lv\n";
    system("/bin/df -h /dev/$vg/$lv");
}

The output shows something like this:

[root@nielsvs-bigip:ModuleNotLicensed:Active:Standalone] ~  ./lvm-check-free-space.pl

Disk usage for app.ASWADB.set.1.mysqldb
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-app.ASWADB.set.1.mysqldb
                       12G  680M   11G   6% /mnt/app.ASWADB.set.1.mysqldb

Disk usage for app.ASWADB.set.2.mysqldb
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-app.ASWADB.set.2.mysqldb
                       12G  753M   11G   7% /var/lib/mysql

Disk usage for app.afm.dat.afmdata
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-app.afm.dat.afmdata
                      3.8G   65M  3.5G   2% /shared/avr_afm

Disk usage for app.asm.dat.asmdata
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-app.asm.dat.asmdata
                      3.8G   65M  3.5G   2% /var/asm

Disk usage for app.avr.dat.avrdata
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-app.avr.dat.avrdata
                      3.8G   65M  3.5G   2% /shared/avr

Disk usage for dat.log.1
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-dat.log.1
                      485M   68M  392M  15% /var/log

Disk usage for dat.maint.1
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-dat.maint.1
                      291M   11M  266M   4% /mnt/dat.maint.1

Disk usage for dat.share.1
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-dat.share.1
                       20G  3.5G   16G  19% /shared

Disk usage for dat.swapvol.1
Filesystem      Size  Used Avail Use% Mounted on
-               4.0G  212K  4.0G   1% /dev

Disk usage for set.1._config
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.1._config
                      3.1G  367M  2.6G  13% /mnt/set.1._config

Disk usage for set.1._usr
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.1._usr
                      3.2G  1.9G  1.2G  62% /mnt/set.1._usr

Disk usage for set.1._var
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.1._var
                      3.1G  1.1G  1.9G  36% /mnt/set.1._var

Disk usage for set.1.root
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.1.root
                      380M  212M  149M  59% /mnt/set.1.root

Disk usage for set.2._config
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.2._config
                      3.2G  373M  2.6G  13% /config

Disk usage for set.2._usr
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.2._usr
                      3.3G  2.2G  970M  70% /usr

Disk usage for set.2._var
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.2._var
                      3.0G  1.9G  995M  66% /var

Disk usage for set.2.root
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg--db--sda-set.2.root
                      427M  179M  226M  45% /
[root@nielsvs-bigip:ModuleNotLicensed:Active:Standalone] ~ 

DISCLAIMER: Use at own risk 😉