Just installed ZimaOS 1.2.5 stable release on my ZimaBoard 832. Since I’m still testing the OS I decided to recreate mmy RAID storege from zero. After my RAID 5 (3x4TB SSD total 8TB) has been created I realised that the energy consumption almost doubled the one needed in ZimaOS 1.2.4.
Also tried to create RAID 0 and I noticed that the energy consumption of the system has returned to its initial level. I think the problem is that CPU in the case of RAID 5 is always busy at list at 25-28% while in RAID 0 it is used by 7-9%. The problem is that I’m totally sure that in ZimaOS 1.2.4 also the RAID 5 consumtion was around 7-9% (what after update in happening only under RAID 0).
Anyone knows why this is happening and how to fix? Thanks
The high occupancy should be caused by creating raid5 and then doing the parity check afterward.
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I would suspect the same thing as @Ns2Kracy
Just wait a few days and then take another look.
@emaoca can you report whether the CPU performance has decreased after a few days
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Thank you very much for your suggestion. The problem was exactly the one you pointed out. Just needed to wait half a day (even less… 4-8 hours, not sure how long exactly) and the CPU use came back to 7% and power consumption to 2.1W (as it was in 1.2.4 OS version) even if in a RAID-5 pool.
Sorry for the late reply but some commitments kept me away from my little server.
Still on power consumption, can anyone tell me if disk standby has any advantage in terms of energy savings even if I only use 2.5-inch SSDs (3x Samsung QVO 4TB)?
And then can anyone tell me if there is any good App, perhaps already present in the Zima Store, that allows me to constantly monitor energy consumption and assess how much it has been over different periods (1 month, six months, a year, etc.)?
Good morning
It’s nice to hear that the raid was only created.
I’m also building myself a little Nas with a Zima…
Basically, you can’t go wrong with an SSD, which consumes very little power in contrast to a 3.5 HHD.
Samsung QVO 4TB
Max 5.5W at 100% load, in sleep mode 35mW, absolutely nothing.
I myself bought a 5TB Seagate Barracuda ST5000LM000 128MB 2.5" (6.4cm) SATA 6Gb/s and will test it.
They are HDDs
but have very low power consumption (idle / read / write): 1.1 / 1.9 / 2.1 W
They only have a data transfer rate of 140 MB/s
but if you let them run Raid 5 or Raid 6 it shouldn’t matter that much.