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add trunas server build notes
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zfs/truenasbuild.md
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# TrueNAS CORE server build
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Following [Guide to ₿itcoin & Lightning️ on FreeNAS / TrueNAS from @set586](https://github.com/seth586/guides/blob/master/FreeNAS/bitcoin/README.md)
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[FreeNAS became TrueNAS CORE](https://www.ixsystems.com/blog/freenas-truenas-unification/)
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[TrueNAS CORE Docs](https://www.truenas.com/docs/core/)
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[CORE Hardware Guide](https://www.truenas.com/docs/core/introduction/corehardwareguide/)
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## Hardware
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Chose an affordable HP ProLiant ML310e Gen8 v2 microserver
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[User Guide](https://content.etilize.com/User-Manual/1028053012.pdf)
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up to 32 GB ECC RAM
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120GB SSD to boot
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6 x 1 TB SSD for storage
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### Redundant disks
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TrueNAS uses ZFS.
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Recommended type: RAID-Z2 (Double parity with variable stripe width)
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[ZFS / RAIDZ Capacity Calculator](https://wintelguy.com/zfs-calc.pl)
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You can’t add drives to a volume once its setup, however you can replace drives with larger drives.
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6 drives in RAIDZ2 (more than 50% of additive capacity)
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4 drives in RAIDZ2 (less than 50% of additive capacity)
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#### Drive connectors:
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* 1 can boot from USB (SSD with a USB to SATA adapter)
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* 2 x onboard SATA
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* 4 x onboard SATA controller -> hotplug cage
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* \+ optional SAS card / HBA (2x4 SATA connector=8)
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max 6 without SATA card (+ USB)
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max 14 (+ USB)
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#### Physical drives
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* 4 or 8 in hotplug cage
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* 6\*2 2.5" or (2\*2 2.5"+ 2\*1 3.5") in 5.25 Optical Bay Drive Slot Case Adapter
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max 20 2.5"
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or
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12 2.5" + 2 3.5"
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#### Actual:
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* 4 onboard SATA -> 4 2.5" adapter in LFF hotplug cage
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* 2 onboard SATA
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* 2 from SATA card -> 4 2.5"
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* 2 from SATA card -> 2 3.5"
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10 disks
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#### Mirrored boot drives:
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Could benefit from a RAID card:
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https://www.truenas.com/community/threads/to-boot-with-usb-or-ssd-or-nvme.83594/post-620199
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RAID 1 configurations can tolerate one drive failure. If one physical drive in a RAID 1 configuration fails, the RAID volume is still intact as a degraded RAID 1.
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#### Harware notes
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B120i is just software RAID
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[B120i User guide](http://docshare04.docshare.tips/files/31252/312525081.pdf)
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Use the onboard SAS adapter (4 SATA connections) or choose a reputable HBA:
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https://www.servethehome.com/buyers-guides/top-hardware-components-freenas-nas-servers/top-picks-freenas-hbas/
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In BIOS setup
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System Options, SATA Controller Options, Embedded SATA Configuration, Enable SATA AHCI support
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The embedded storage controller supports SATA drive installation only. For SAS drive installation, install a Smart Array card and a Mini-SAS cable option kit. Optional Smart Array controllers support both SATA and SAS drives.
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Beware! The two system fans are custom, and cannot be replaced with standard ones. A dead fan will prevent your system from even booting! So as you get it, better take a couple spares on the ebay/aliexpress ecc
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TEST:
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* does the onboard SATA controller work together with the B120i?
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* can the B120i be used to boot?
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#### Hardware debug
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[POST debug flowchart](https://i.stack.imgur.com/5NtIt.png)
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from https://serverfault.com/questions/465883/hp-proliant-dl360-g7-hangs-at-power-and-thermal-calibration-screen
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[HP ProLiant Servers Troubleshooting Guide](http://h10032.www1.hp.com/ctg/Manual/c00257512.pdf)
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### Redundant power
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#### UPS
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[APC UPS config](https://www.cyberciti.biz/faq/how-to-install-apc-ups-on-freenas-server/)
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#### Dual power supply
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Can be connected to 2 UPS-es, the second backed by a large battery or generator
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### Redundant network
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E.g broadband + 4G
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* router level (1 NIC)
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* dual router (2 NICs)
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The router + modem needs to be connected to the UPS as well.
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## Setting up TrueNAS
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[Encryption](https://www.truenas.com/docs/core/storage/pools/storageencryption/)
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Keys for data-at-rest are managed on the local TrueNAS system.
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DebianVM:
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set VNC to 800x600:
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https://www.truenas.com/community/threads/debian-vm-display-is-not-clear-with-vnc.88501/post-613065
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fix boot: https://www.truenas.com/community/threads/howto-how-to-boot-linux-vms-using-uefi.54039/
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Fix GUI desktop:
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https://www.truenas.com/community/threads/debian-vm-with-gui.90808/post-629025
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