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  #51  
Old 09-04-14, 10:40 PM
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alpenwasser alpenwasser is offline
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Quote:
Originally Posted by Feronix View Post
Now that's... industrial

I love it!

Hehe, yeah that sums it up pretty nicely, thanks!

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  #52  
Old 10-04-14, 09:22 AM
Gk1ngs Gk1ngs is offline
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Quote:
Originally Posted by Feronix View Post
Now that's... industrial

I love it!
I have to agree here. This is an Epic server build!
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  #53  
Old 11-04-14, 06:20 PM
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alpenwasser alpenwasser is offline
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Quote:
Originally Posted by Gk1ngs View Post
I have to agree here. This is an Epic server build!

Thanks, much appreciated!

Anyway:

Triple Fan Unit



As hinted at earlier, the airflow in this build will go from
the front compartment through the middle wall into the M/B
compartment and out the back.

This is pretty much how the stock configuration works,
except in that the air gets in through the front panel, not
through the side panel.

Unfortunately I forgot to take pics of the stock config, but
luckily tweaktown.com did a review on this case and took them
for me.


Source article where I got the image from can be found here.

In the stock config, the 92 mm fans are mounted inside
some plastic fan cages that allow quick and toolless fan
replacement in case of failure.

(click image for full res)



And without the fan cages:

(click image for full res)



Originally I just screwed the fans to two aluminium L
profile bars.

(click image for full res)


(click image for full res)


(click image for full res)



It was fixed to the middle wall with double-sided adhesive
tape. It's very strong stuff, so the fan unit falling off
was not a concern. Additionally, the tape has some thickness
to it, which should provide some dampening between the fan
unit and the middle wall.

(click image for full res)



Unfortunately, due to some bumps on the middle wall getting in
the way, the tape on the rear angle didn't make proper contact
with the wall. It held, but not very well.

Additinoally, I noticed that there were rather strong
vibtrations on the middle wall. It turned out that the tape
did indeed offer some decoupling, but it also did not
offer any additional strength to the middle wall (i.e. no
additional stiffness), which meant the wall could easily
vibrate.

(click image for full res)



So, I took the unit out, and while I was at it, I also cut
out some recesses for the fans which I didn't bother doing
before. I also put some dampening foam between the fans and
the alu angles.

(click image for full res)



Aaand of course I mounted the fans the wrong way
round. Sigh.

(click image for full res)



Disassemble again, reassemble.

(click image for full res)



Also: Foam between the alu angles and the wall itself:
(click image for full res)



This time I bolted it to the wall with some screws. Much
more solid now, no more vibrations.

(click image for full res)



How it looks from the other side:

(click image for full res)



Cheers,
-aw
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  #54  
Old 11-04-14, 06:29 PM
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Dicehunter Dicehunter is online now
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I'm looking forward to seeing the end product
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  #55  
Old 11-04-14, 06:35 PM
RadeonHDx RadeonHDx is offline
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This looks so crazy, but awesome. So many wires and fans!
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  #56  
Old 11-04-14, 08:05 PM
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alpenwasser alpenwasser is offline
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Quote:
Originally Posted by Dicehunter View Post
I'm looking forward to seeing the end product
As am I, thanks!

Quote:
Originally Posted by RadeonHDx View Post
This looks so crazy, but awesome. So many wires and fans!
Yeah, there are twelve fans in there, and with 24 disks it's pretty much a
case of "Cables, cables everywhere."
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  #57  
Old 12-04-14, 04:40 PM
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lAnimal lAnimal is offline
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Quote:
a case of
I see what you did there
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  #58  
Old 12-04-14, 08:17 PM
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alpenwasser alpenwasser is offline
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Storage Topology & Cabling

Quote:
Originally Posted by lAnimal View Post
I see what you did there

lol, and I didn't even do that one on purpose.


Storage Topology & Cabling


Storage Topology


In case you can't read the text, the full res version should
be more easily readable.

(click image for full res)



The idea behind the storage topology is based on the concept
Any one of the three LSI controllers can fail and I still
have all my data available.

You'll see below that I haven't yet gotten around to
installing the Velociraptor.

I use coloured zip ties to mark the cables that go to the
different controllers.

BLUE = controller 0
YELLOW = controller 1
GREEN = controller 2


Tidiness

There isn't really any space to hide the cables, so this was
rather tricky and required three attempts until I was
satisfied with the result. In the end I hid the extra cable
behind the triple fan unit, good thing they're 38 mm fans,
which makes the space behind them just about large enough to
fit the extra cable bits.

The power cables for the disks are two cables that came with
the PSU and onto which I just put a lot more connectors
while taking off the stock connectors because those were
neither placed in the correct locations nor facing in the
right direction.


Looks harmless, right? Yeah...

(click image for full res)



And the disks:
(click image for full res)



OK then, first try:
(click image for full res)


I soon realized that this wasn't going to work. The problem
was that I had the disks arranged in the same way as the
will be set up in the storage pool layout, so the disks
which go into the same storage pool were also mounted below
each other. Sounds nice in theory, but if you want to
have disk from each pool distributed among the different
controllers, you'll get quite the cable mess.

(click image for full res)


(click image for full res)



Second Try

Next try, this time I arranged the disks to that the cables
to the controllers could be better laid out. Since I wanted
to set up all the cables for all the disk slots, even ones
that will stay empty for now, I had to shuffle the disks
around when laying out the cables.

(click image for full res)


(click image for full res)


(click image for full res)



Better. But I still wasn't quite happy, mainly because...

(click image for full res)


(click image for full res)


(click image for full res)



... of this:

(click image for full res)



Third Try


This time I made sure the cables stayed tidy on both ends
while hiding the mess (which cannot be avoided since all
cables are the same length but lead to different end points,
obviously) behind the triple fan unit.

(click image for full res)



The loop of extra cable length for the top cable loom:

(click image for full res)



And the cable loom for controller 0, from the disk side...

(click image for full res)



and the M/B side. Much better IMHO.

(click image for full res)



The bottom controller had a bit more extra cable length to hide, so
that part is a bit messier.

(click image for full res)


And the middle one:
(click image for full res)



Tada! While not perfect (I'd need longer cables for that to
make cleaner runs, but I'm not buying more cables just for
the sake of that for a build that has a closed side panel),
with this iteration of my cabling I'm now rather happy:

(click image for full res)


(click image for full res)


(click image for full res)



And the other side. Much better than before methinks.

(click image for full res)


(click image for full res)



The SATA cable for the system SSD:

(click image for full res)



And the controller LEDs when there's some activity:

(click image for full res)



Now if you'll excuse me, there's a dinner waiting to be
cooked.


Cheers,
-aw
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  #59  
Old 12-04-14, 08:23 PM
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MadMarc MadMarc is offline
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Very cool project dude (as usual), nice work with the custom hd mounting system
Amazing how you managed to get even this amount of bright red cables looking tidy
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  #60  
Old 13-04-14, 12:18 AM
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alpenwasser alpenwasser is offline
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Quote:
Originally Posted by MadMarc View Post
Very cool project dude (as usual), nice work with the custom hd mounting system
Amazing how you managed to get even this amount of bright red cables looking tidy
Thanks mate, much appreciated!

And yeah, TBH I had my doubts about the cable tidiness, it was a rather
tricky undertaking. I suppose that's why it took three tries until I had an
acceptable result.
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