Four Options to Setup a napp-it ZFS Storage Server
Option 1: napp-it barebone setup
Install your OS and napp-it manually
read napp-it.pdf
Step1: Setup your OS ex
see http://omnios.omniti.com/wiki.php/Installation
Step 2: configure you network
enable DHCP or set a fixed ip
Step 3: setup the appliance
run the online installer
wget -O - www.napp-it.org/nappit | perl
Please set a password for root and napp-it now (only on permission error messages in 151028)!
passwd root and optionally passwd napp-it
You can now manage the storage server via: http://ip_of_your_server:81
Option 2: napp-it under ESXi (All-in-One, virtualised setup)
Preconfigured image as an ESXi template, virtualized NAS/SAN
read napp-in-one.pdf
Download images...
Option 3: napp-it under Proxmox (All-in-One, virtualised setup)
https://www.hardwareluxx.de/community/threads/proxmox-stammtisch.1039627/page-91#post-30336189
https://forums.servethehome.com/index.php?threads/napp-it-for-proxmox.32368/#post-419886
Option 4: napp-it cs (preview)
https://www.napp-it.de/downloads/windows en.html
more infos: click on your OS of choice
Configure your network and install napp-it via online command
How much RAM do I need for the above setups
RAM for a ZFS filer has no relation to pool or storage size!
Calculate 2 GB for a 64bit OS, add 1-2 GB for a Solaris based filer and 3-4 GB for a BSD/Linux based filer for minimal read/write caching or ZFS can be really slow. RAM above depends on web-gui, numer of users or files, data volatility or wanted storage performance. Add more RAM for diskbased pools than SSD pools for a good performance.
Beside ZFS and performance, a web-gui wants RAM. A Solaris based ZFS filer with napp-it works with 4GB RAM but becomes faster with more so I suggest at least 6GB. Other web-guis suggest 16GB as minimum.
With napp-it cs I suggest 8 GB as minimum for the Windows machine where the frontend web-gui is running, 16GB if you additionally use ZFS on Windows on that machine.
For the ZFS filers that you want to manage with napp-it cs there is no additional RAM requirement for the server app what means that napp-it cs can manage a Solaris/Illumos based ZFS filer with 2-3 GB RAM and a BSD/Linux/OSX/Windows filer with 4-6 GB RAM what should allow to manage even a small ARM filerboard remotely with a web-gui (with ZFS and Perl on it)
Recovery:
In case of problems, try a former BE, use the bootable backup disk or restore from image with clonezilla.
If you want disaster revovery based on a current backup, replicate current BE daily or hourly to your datapool.
To recover, do a minimal setup, restore that BE and boot into.