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Setup Guide: Installing Media Center on FreeNAS server
madbrain:
Thank you very much for putting together this guide. I may very well end up following in your steps - with different hardware, though.
I do have a couple questions :
1) what is the idle power consumption of your server ? Have you checked with a kill-a-watt ?
2) how are you backing up all this data, if you are backing it up at all ?
stevemac:
hi,
I haven't checked the power consumption - will do so & report back. Its operation is covered by PV panels during daylight hours - so only costing me at night
I am still in the freenas infancy & it is only holding data that can be recovered (re-rip of media or the files are already on other machines).
Before I move more important data to it will be testing recovery options (offsite hard drive and or rync data to offsite NAS or cloud service). Only smaller / critical files would be in the rsync / cloud storage. Will also need to investigate encryption.
Steve
stevemac:
Finally got round to checking the server's power consumption. At 240VAC 50Hz it is idling along between 130 and 140 watts. That's with the following
* 5 x mechanical HDD
* 1 x SSD
* 2 x HBAs (via PCI-e slots)
* 2 x VMs running (but not doing much)
One of the HBAs will be removed the next time I have the case open - so it might decrease a little
Serving a MKV file via DLNA to a Samsung TV did not change the consumption
I'll report back again after loading up the CPU and disk activity
Looking at FreeNAS builds on new hardware - users are reporting 72 - 80 watts at idle.
regards,
Steve
stevemac:
I noticed an issue with the date/time on the virtual machines.
Whilst the UTC and local time settings were correct on the FreeNAS server & the timezone settings were correct on the guests, the date/time was incorrect on the guests.
performed the following on the debian VMs (guests) to fix it
* Set system date correct for my timezone
* updated /etc/adjtime so that the 3rd line was LOCAL not UTC
* Copied system date to hardware clock
* rebooted the guest
regards,
Steve
madbrain:
--- Quote from: stevemac on May 12, 2017, 06:23:56 am ---Finally got round to checking the server's power consumption. At 240VAC 50Hz it is idling along between 130 and 140 watts. That's with the following
* 5 x mechanical HDD
* 1 x SSD
* 2 x HBAs (via PCI-e slots)
* 2 x VMs running (but not doing much)
One of the HBAs will be removed the next time I have the case open - so it might decrease a little
Serving a MKV file via DLNA to a Samsung TV did not change the consumption
I'll report back again after loading up the CPU and disk activity
Looking at FreeNAS builds on new hardware - users are reporting 72 - 80 watts at idle.
regards,
Steve
--- End quote ---
Thanks. That is useful. I have solar PV as well, but also two electric cars and lots of other things going on. I have a net positive electric bill, and the marginal cost of anything that runs 24/7 can be high.
72-80 watts idle is better than what I have with my Skylake PC with lots of drives, which is about 90 watts idle best case.
It's a lot more than my ODROID XU4 with external dual-drive USB 3.0 dock . Using ext4 I have managed 75 MB/s file transfer over LAN gigabit ethernet interface with a single client. Not maxing the interface, but this is pretty good.
I should measure the power consumption with a few drives. Right now, I'm running with a 6TB Toshiba N300 in one of the docks, and an 8TB Seagate Backup Plus which is too slow for NAS and will be removed shortly when I have more/faster drives.
Altogether I would be surprised if I'm exceeding 30W idle and 40W with active drives. All the drives power down when idle. XU4 power consumption cannot be more than 20W as it uses a 5V/4A power supply.
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