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techs:nas:omv

Learn OMV

Hasee K650D-i5 D1, i5-4210M, 8GB DDR3, GTX850M 2G DDR3 (not used),

LEVEN mSATA SSD 64GB (Amazon)

Plugins I used:

Name Note
WOL
SnapRAID
symlinks
downloader

软路由

Filesystem

MergerFS

使用 mergerfs 合并多块硬盘的剩余空间 (2018-02-05)

  • 基于FUSE

读写性能如何?

SnapRAID: https://www.snapraid.it/

目录级别的冗余存储:SnapRAID (2018-03-08)

  • 不是RAID
  • 配置单独的奇偶校验盘,来实现对其它盘的数据恢复
  • 同步和计算都不是实时的,因为不是RAID

Backup

Laptop to OMV

Use UrBackup. Set up using this dockerhub link.

:todo: 安装完才发现 UrBackup 似乎是专注于 windows 整机备份的,不是专注于文件备份。我是否需要整机备份?太庞大了……可以考虑排除掉数据文件,只备份系统部分,不知道会有多大。

:todo: 单纯的文件备份,是否可以考虑filegee这种不需要服务器端的方案?

OMV to HDD

Check Full Disk Mirroring / Backup with Rsync.

:TODO: set up and record the command used at last.

WD Easystone (brand for BestBuy specially) 14TB. (Check Hard Drivers to see how to prepare a new drive properly.)

Q&A

Gracefully shutdown or suspend after power loss, when using laptop battery

Copied from here:

Necroing to post the solution:

You need the UPower package. OMV just so happens to use Debian as its backbone too, so it's easy to install:

sudo apt-get install -y upower

From there, just configure /etc/UPower/UPower.conf using nano. I set it at 95%, or a little after the machine loses AC power.

Also don't forget to enable (so it runs at boot) and start the service:

sudo systemctl enable upower.service
sudo systemctl start upower.service

The downside is that it will not power up automatically when AC power comes back, but you can just set up Wake-on-LAN from the router and use that instead.

Change laptop lid action

nano /etc/systemd/logind.conf 

Enable HandleLidSwitch=ignore.

Blank or turn off screen automatically

nano /etc/default/grub

Set GRUB_CMDLINE_LINUX=“consoleblank=30”. (Screen will go off after 30 seconds.)

update-grub
reboot

Ref: https://forum.openmediavault.org/index.php?thread/22507-how-to-make-screen-off-after-some-time/&postID=198453#post198453

It seems a bug that when I use CPU hardware decoding through Jellyfin, the screen will light up, ignoring the above setting. So I have to keep the lid close, which physically turns the screen off I guess.

Power-off external USB drives safely

This command completely turns off the external drive.

udisksctl power-off -b /dev/sd*

Reboot the system and the USB drive can be reconnected, which seems the only way.

Set up network in command line

Find the network hardware name (mine is enp4s0f2) using: ip a

Then edit this file: nano /etc/networks/interfaces

Add these lines to the end:

iface enp4s0f2 inet static
      address 192.168.86.xx
      address 192.168.86.1

Then restart the network by ipdown enp4s0f2 then ipup enp4s0f2.

Should let OMV manage the network configuration and set via OMV webui, but in my case it fails connecting automatically. After the above changes, I got connect to OMV webui, set ethernect connection there, and removed my changes to /etc/networks/interfaces.

Speed test in command line

Install iperf3 on all testing ends.

Use one end as a server, run this: iperf -s

Then at the testing end, run this for summary: iperf -c IP_of_the_above_server

Privileges and permissions

Privileges and permissions explained under OMV

- All shared folder created via webUI, has default 2775 permission, with a root:users folder ownership.

Useful links

techs/nas/omv.txt · Last modified: 2022/02/26 04:36 by foreverph