Dr Data - Davor Vusir tells you how to... -

Build a home server - take two, part 1.

The new approach - OS install
I have two 60 GB SSD disks. So far, after having installed OS, VirtualBox and other applications, I have used 3,5 GB on root. My guess is that when completed I will have used up cirka 4 GB on root. It seems kind of hefty to dedicate two 60 GB quite expensive SSD disks and not fully use them. And I really want to take advantage of the nifty features ZIL and L2ARC...

You do not have to dedicate whole disks to ZFS. But if you do, ZFS uses the disks cache. That is of course an advantage. ZFS can also use partitions, which I will use to fully utilize the SSD disks.

Follow this (among many) guide to create a ZFS root mirror: http://www.freebsdwiki.net/index.php/ZFS,_booting_from. The only thing I did different was partitioning:

# gpart add -b 34 -s 128 -t freebsd-boot -l boot0 ada0
# gpart add -s 12288M -t freebsd-swap -l swap0 ada0
# gpart add -s 16G -t freebsd-zfs -l root0 ada0
# gpart add -s 4096M -t freebsd-zfs -l zil0 ada0
# gpart add -t freebsd-zfs -l cache0 ada0

# gpart add -b 34 -s 128 -t freebsd-boot -l boot1 ada3
# gpart add -s 12288M -t freebsd-swap -l swap1 ada3
# gpart add -s 16G -t freebsd-zfs -l root1 ada3
# gpart add -s 4096M -t freebsd-zfs -l zil1 ada3
# gpart add -t freebsd-zfs -l cache1 ada3

This gives you the following layout:

[root@ohlala ~]# gpart show

=>      34 117231341 ada0 GPT (55G)
        34      128 1 freebsd-boot (64k)
       162 25165824 2 freebsd-swap (12G)
  25165986 33554432 3 freebsd-zfs (16G)
  58720418  8388608 4 freebsd-zfs (4.0G)
  67109026 50122349 5 freebsd-zfs (23G)

=>      34 117231341 ada3 GPT (55G)
        34      128 1 freebsd-boot (64k)
       162 25165824 2 freebsd-swap (12G)
  25165986 33554432 3 freebsd-zfs (16G)
  58720418  8388608 4 freebsd-zfs (4.0G)
  67109026 50122349 5 freebsd-zfs (23G)
[root@ohlala ~]#

Edit /etc/fstab:


 /dev/gpt/swap0  none    swap    sw      0       0
 /dev/gpt/swap1  none    swap    sw      0       0

After reboot you should have an output similar to this:

[root@ohlala ~]# df -h


Filesystem          Size    Used   Avail Capacity  Mounted on
zroot                12G    345M     12G     3%    /
devfs               1.0k    1.0k      0B   100%    /dev
zroot/home           12G     46M     12G     0%    /home
zroot/tmp            12G     55k     12G     0%    /tmp
zroot/usr            15G    3.1G     12G    20%    /usr
zroot/var            12G     97M     12G     1%    /var

[root@ohlala ~]#

Part 2 - Configure basic monitoring.

2012-05-25 @ 05:53:35 Homeserver Permalink

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Dr Data - Davor Vusir tells you how to...

You have now reached the place on the Internet where you will get information about how to install and configure a perfectly viable SOHO server. Build, install, enjoy!

Build a home server - take two, part 1.