robsheffield
Posts: 5
Joined: Sun Oct 27, 2013 12:40 pm

Neatest way to attach 2x USB HDD’s

Mon Jan 13, 2020 2:45 pm

Hello,

What’s the neatest and best way to attach a pair of external disks to my pi 3b+ ?
I’d like to keep things small (and low power) so 2.5” drives are what I’m looking at.
I understand the pi won’t power two spinnies at the same time particularly well. Is a powered hub my only option? Is there such a thing as a dual 2.5” hdd enclosure I could put some naked drives in to that will let me mount each disk separately? Are there even any pi cases with hdd caddies - perhaps a 3 bay I could slot the pi in to as well?

TIA

LTolledo
Posts: 2866
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Neatest way to attach 2x USB HDD’s

Tue Jan 14, 2020 11:22 am

this is my early attempt at connecting 2xUSB HDDs to RPi2Bv1.2 (using same SoC as RPi3B)
RPi2B_HDD_rack.jpg
RPi2B_HDD_rack.jpg (233.06 KiB) Viewed 594 times

1 x 2TB Seagate HDD, 1 x 1TB Marshall HDD, both in Orico Clear Case USB3.0
no USB hub, direct connection to RPi's USB hubs
powered by 5v 3.0A PSU
boot up from microSD (a must for this type of system)

used this setup for 6 months.... worked fine...

tested to stream 1080p 5.1ch encoded videos (5.5GB file size) to 4 other media players back then (file accessed from 2TB HDD).
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

robsheffield
Posts: 5
Joined: Sun Oct 27, 2013 12:40 pm

Re: Neatest way to attach 2x USB HDD’s

Tue Jan 14, 2020 9:45 pm

Not to be rude, but that’s a little messier than I’m after. Cool that it works without additional power though. I guess both disks aren’t super-active simultaneously for this to work consistently (?)

LTolledo
Posts: 2866
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Neatest way to attach 2x USB HDD’s

Tue Jan 14, 2020 10:23 pm

robsheffield wrote:
Tue Jan 14, 2020 9:45 pm
Not to be rude, but that’s a little messier than I’m after. Cool that it works without additional power though. I guess both disks aren’t super-active simultaneously for this to work consistently (?)
none taken... :D

as mentioned... it was my first attempt... to check out everything I wanted to test, using readily available items in my room.
concurrent access was one disk at a time...

I've since replaced the 1 x 2TB and 1 x 1TB with 1 x 4TB as seen in below
RPi2B_NAS_v3.0.jpg
RPi2B_NAS_v3.0.jpg (198.74 KiB) Viewed 537 times
still the same RPi2Bv1.2
been using for the last 10 months....

there is a neater one, this time based on RPi4B-2G but using 3.5" drives.
https://www.raspberrypi.org/forums/view ... S#p1541272
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

iznobe
Posts: 424
Joined: Sun Feb 05, 2017 4:14 pm
Location: Avignon , FRANCE

Re: Neatest way to attach 2x USB HDD’s

Thu Jan 16, 2020 1:55 pm

Hi

do you have already buy your HDD ?

if no , you can look at m2 SSD , it depends on what you want to do .

it is more little than HDD 2.5" , and need less power than others HDDs.
case example here : https://www.amazon.fr/gp/product/B016HL ... UTF8&psc=1

HDD example here :https://www.amazon.fr/gp/product/B07XJ9 ... UTF8&psc=1

this is working with pi3B ! ( boot and reboot without SD card ! ) ;)

robsheffield
Posts: 5
Joined: Sun Oct 27, 2013 12:40 pm

Re: Neatest way to attach 2x USB HDD’s

Sat Jan 18, 2020 7:21 pm

Cheers all,
M.2’s at the capacity I want are out of budget. Think I might stick with a single external hdd and stick it straight to my pi case.
The idea behind 2 hdd’s was to use one as a media library and the other as an Rsync mirror for that media, plus some other devices. I reckon I can move the backup to something I only occasionally plug in.

dustnbone
Posts: 201
Joined: Tue Nov 05, 2019 2:49 am

Re: Neatest way to attach 2x USB HDD’s

Sat Jan 18, 2020 9:52 pm

Most of the ones I've seen don't have external power connectors, but this one does.

https://www.amazon.com/Mediasonic-ProRa ... B01N44HETR

The only question is if the USB -> SATA bridge plays nice with Raspbian, most likely it does but I don't know for sure.

LTolledo
Posts: 2866
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Neatest way to attach 2x USB HDD’s

Sat Jan 18, 2020 11:29 pm

dustnbone wrote:
Sat Jan 18, 2020 9:52 pm
Most of the ones I've seen don't have external power connectors, but this one does.

https://www.amazon.com/Mediasonic-ProRa ... B01N44HETR

The only question is if the USB -> SATA bridge plays nice with Raspbian, most likely it does but I don't know for sure.
looks promising indeed ...
but there seems to be a "flaw in the design" of the case, as stated in the reviews on that link.

I've already looked at another maker for my next project (before I saw the above link, so I can compare with my earlier choice)
its also powered, and the kit includes PSU.
.... just having trouble sourcing a reasonably priced RPi4B-1G (for that project) where I am....
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

swampdog
Posts: 349
Joined: Fri Dec 04, 2015 11:22 am

Re: Neatest way to attach 2x USB HDD’s

Mon Jan 20, 2020 12:05 am

LTolledo wrote:
Sat Jan 18, 2020 11:29 pm
dustnbone wrote:
Sat Jan 18, 2020 9:52 pm
Most of the ones I've seen don't have external power connectors, but this one does.

https://www.amazon.com/Mediasonic-ProRa ... B01N44HETR

The only question is if the USB -> SATA bridge plays nice with Raspbian, most likely it does but I don't know for sure.
looks promising indeed ...
but there seems to be a "flaw in the design" of the case, as stated in the reviews on that link.

I've already looked at another maker for my next project (before I saw the above link, so I can compare with my earlier choice)
its also powered, and the kit includes PSU.
.... just having trouble sourcing a reasonably priced RPi4B-1G (for that project) where I am....
I know you asked for rpi3 and this is for rpi4..
https://www.raspberrypi.org/forums/view ... 3#p1532171
..and I've never tested the enclosure on anything but usb3 but they are real thin and flat so could be stuck together back to back.

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