Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
An interesting ARM single board computer for NAS
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo on ARM
View previous topic :: View next topic  
Author Message
crocket
Guru
Guru


Joined: 29 Apr 2017
Posts: 454

PostPosted: Mon Jan 06, 2020 12:07 am    Post subject: An interesting ARM single board computer for NAS Reply with quote

Helios64 Official Announcement ! - Kobol Blog.

It is also suitable as an ARM build machine because it has RK3399 SoC with 4GB ECC RAM. If 4GB RAM is not enough for compilation, utilize swap on HDDs.
Back to top
View user's profile Send private message
pjp
Administrator
Administrator


Joined: 16 Apr 2002
Posts: 18735

PostPosted: Mon Jan 06, 2020 3:15 am    Post subject: Reply with quote

Soldered RAM? Is footprint the only technical reason to not have more?

Price seems OK, but not compelling (it'd have to win in a features / capabilities evaluation against competiors rather than being an easy yes).
_________________
Magna Carta (1215) | Spectral evidence no longer permissible (c. 1792) | Cancel culture, deplatforming (c. 2016)
Back to top
View user's profile Send private message
crocket
Guru
Guru


Joined: 29 Apr 2017
Posts: 454

PostPosted: Mon Jan 06, 2020 3:59 am    Post subject: Reply with quote

It's cheaper than many competitor NAS products with 4GB ECC RAM. It is also more flexible than ready-made NAS products. It consumes little power. I think price is the reason that it doesn't have more RAM. No affordable ARM single board computer has 8GB RAM, yet.

If you want more ECC RAM, you will have to look for other products for now.
Back to top
View user's profile Send private message
pjp
Administrator
Administrator


Joined: 16 Apr 2002
Posts: 18735

PostPosted: Mon Jan 06, 2020 5:36 am    Post subject: Reply with quote

$300 isn't that cheap, so at least for me, that's close enough to require a comparison. RAM sockets aren't a new technology (which is why I wondered about size vs. technical limitations).

The cost is tempting, especially with 1Gb and 2.5Gb Ethernet. But I'm thinking for more general use than a dedicated NAS. 4GB doesn't seem sufficient for ZFS.
_________________
Magna Carta (1215) | Spectral evidence no longer permissible (c. 1792) | Cancel culture, deplatforming (c. 2016)
Back to top
View user's profile Send private message
crocket
Guru
Guru


Joined: 29 Apr 2017
Posts: 454

PostPosted: Mon Jan 06, 2020 6:04 am    Post subject: Reply with quote

If you limit the size of ZFS ARC and do not use ZFS deduplication, 4GB can be enough. Smaller ZFS ARC means slower performance.
Back to top
View user's profile Send private message
erm67
l33t
l33t


Joined: 01 Nov 2005
Posts: 647
Location: EU

PostPosted: Mon Jan 06, 2020 1:56 pm    Post subject: Reply with quote

pjp wrote:
Soldered RAM? Is footprint the only technical reason to not have more?

Price seems OK, but not compelling (it'd have to win in a features / capabilities evaluation against competiors rather than being an easy yes).

4GB is the max supported ram, there would be little use for dimm sockets.


Quote:
Memory
Dynamic Memory Interface (DDR3/DDR3L/LPDDR3/LPDDR4): Compatible with JEDEC standard DDR3-1866 /DDR3L-1866 /LPDDR3-1866 /LPDDR4 SDRAM. Support 2 channels, each channel is 16 or 32bits data width. Support up to 2 ranks (chip selects) for each channel; totally 4GB(max) address space. Maximum address space of one rank in a channel is also 4GB, which is software-configurable


According to some news they switched from Marvell SoC to Rockchip RK3399, A Marvell SoC would be a lot better ....

Also the RK339 has only one 4 lanes PCI-E 2.1 slot, the max theoretical speed should be 2 GB/s (If I am not wrong) and they connected 1 2.5Gbit/s ethernet and 5 sata controllers to this slot. I 'd wait for some benchmarks .... at least they did not use an onboard gigabit-usb adapter ;-)
_________________
Ok boomer
True ignorance is not the absence of knowledge, but the refusal to acquire it.
Ab esse ad posse valet, a posse ad esse non valet consequentia

My fediverse account: @erm67@erm67.dynu.net
Back to top
View user's profile Send private message
erm67
l33t
l33t


Joined: 01 Nov 2005
Posts: 647
Location: EU

PostPosted: Mon Jan 06, 2020 2:28 pm    Post subject: Reply with quote

crocket wrote:
If you limit the size of ZFS ARC and do not use ZFS deduplication, 4GB can be enough. Smaller ZFS ARC means slower performance.


You mean the problem was a too smaller ARC?
https://www.phoronix.com/scan.php?page=article&item=ubuntu1910-ext4-zfs&num=2

In fact the only good benchmark used 1000 1MB files i.e. was entirely in RAM/ARC....
_________________
Ok boomer
True ignorance is not the absence of knowledge, but the refusal to acquire it.
Ab esse ad posse valet, a posse ad esse non valet consequentia

My fediverse account: @erm67@erm67.dynu.net
Back to top
View user's profile Send private message
pjp
Administrator
Administrator


Joined: 16 Apr 2002
Posts: 18735

PostPosted: Mon Jan 06, 2020 6:54 pm    Post subject: Reply with quote

erm67 wrote:
Quote:
Memory
Dynamic Memory Interface (DDR3/DDR3L/LPDDR3/LPDDR4): Compatible with JEDEC standard DDR3-1866 /DDR3L-1866 /LPDDR3-1866 /LPDDR4 SDRAM. Support 2 channels, each channel is 16 or 32bits data width. Support up to 2 ranks (chip selects) for each channel; totally 4GB(max) address space. Maximum address space of one rank in a channel is also 4GB, which is software-configurable


According to some news they switched from Marvell SoC to Rockchip RK3399, A Marvell SoC would be a lot better ....

Also the RK339 has only one 4 lanes PCI-E 2.1 slot, the max theoretical speed should be 2 GB/s (If I am not wrong) and they connected 1 2.5Gbit/s ethernet and 5 sata controllers to this slot. I 'd wait for some benchmarks .... at least they did not use an onboard gigabit-usb adapter ;-)
Thanks. I don't believe I've ever noticed a reference to channels and bits. I'll try to remember when I look at other solutions. This definitely looks like a pass (for me).
_________________
Magna Carta (1215) | Spectral evidence no longer permissible (c. 1792) | Cancel culture, deplatforming (c. 2016)
Back to top
View user's profile Send private message
erm67
l33t
l33t


Joined: 01 Nov 2005
Posts: 647
Location: EU

PostPosted: Mon Jan 06, 2020 9:19 pm    Post subject: Reply with quote

I was wrong, according to rockchip the theoretical max speed of the pcie slot is 5GTransfer/s, it might be enough for 5 rotational disks, and nobody owns a 2.5Gbit/s switch anyway ..... I still wait for benchmarks.


test posted on the forum for the rockpro64, a board that uses the same RK3399 SoC show a 1.5Gbytes/s speed in practice.
https://forum.pine64.org/showthread.php?tid=6513&pid=40714#pid40714
_________________
Ok boomer
True ignorance is not the absence of knowledge, but the refusal to acquire it.
Ab esse ad posse valet, a posse ad esse non valet consequentia

My fediverse account: @erm67@erm67.dynu.net
Back to top
View user's profile Send private message
xaviermiller
Bodhisattva
Bodhisattva


Joined: 23 Jul 2004
Posts: 8623
Location: ~Brussels - Belgique

PostPosted: Fri Jan 10, 2020 12:33 pm    Post subject: Reply with quote

Hello,

Pre-orders are open!
_________________
Kind regards,
Xavier Miller
Back to top
View user's profile Send private message
crocket
Guru
Guru


Joined: 29 Apr 2017
Posts: 454

PostPosted: Tue Feb 04, 2020 10:24 pm    Post subject: Reply with quote

Compared to NAS options with 2~4GB non-ECC RAM in my local market, this one is better and cheaper. If I wanted to buy a NAS, there are good reasons to buy this one. Helios64 can also serve as an ARM build machine with swap on HDDs.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo on ARM All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum