Hmmm I recently decomisioned my 4224 but never had any issues cooling with the stock fan setup. It blows a lot of air even when slowed down for noise. Just ensure you close the vents on any trays you are not using.
I use a marine inverter/charger Magnum MS2812 but there is a smaller MS2012.
It'll run continuous duty (2000w for the MS2012), has a 30A @ 120v input and a big charger (200+ Amp DC).
I work in the marine industry so am familiar with them. I got mine used.
I would go option A
But don't bother with a expansion card... get a Netapp DS4246 off ebay. (Or a DS4486 for 48 disks)
They're usually quite cheap and great hardware.
I didn't pull PSU's out when testing, just ran them unplugged.
All fans on them run regardless if they are powered directly or not.
I would say noise was the same with 2 or 4 PSUs powered.
I rewired my low voltage during home during a renovation 1.5 years ago.
Here are my recommendations and discoveries after the fact;
Cat6 wiring:
Use boxes of Cat6a. Cost difference to cat5e is negligible and support for video and 10g over cat6a is superior.
Cat6a terminates to keystones...
I made one but as others have mentioned it will not support the switch's weight.
I have most of the weight sitting on a couple ears mounted under my desk from a print on thingiverse.
Also the holes are slightly small for the screws into the switch.
The screws will tap a thread in the print if...
Just got a couple of these units finally.
My unit has 2 IOM6's with 4 PSUs
Unit all 4 PSU I get;
4.2 amps at initial startup
3.2 amps mid startup
1.4 amps idle
1.0 amps with only 1 PSU enabled
Noise is very acceptable IMO.
Let me know if you guys have any questions I can awnser
For those that need a full height bracket
There is a 3d printed model available on thingiverse
Full Height Bracket for QSFP PCIe Network Adapter (HP/Mellanox 649281-B21 Infiniband) by samuelpinches
I printed a couple myself. Work fine but you'll need screws and nuts
I'll measure when it shows up but I'm still 10 days out likely. (Shipping to Canada)
You shouldn't need transposers unless you want to use SAS dual link on a SATA drive.
Do you need the controller redundancy?
I have one on the way.
Bought from this seller.
Going for $280 atm
https://www.ebay.ca/itm/NetApp-DS4486-NAJ-1101-24-Port-4U-Disk-Shelf-w-2x-IOM6-Controller-4x-PSUs/254420348162
Good idea, let me know if you wanna move anything into your post.
LSI 9240 (and others) Driver Installation
Instructions include binding the driver properly and loading the driver before installation...
I think its worth mentioning...
Just deal with 4k sectors now. Build your ZFS pool to support them now
If in a year or two a drive needs to be replaced and no 512 sector drives are available your performance using a 4k sector drive will be terrible.
Its better to create a 4k pool now...
If it helps anyone I've tested the M1015 (lsi 9240-8i) in a s775 Gigabyte P35 and a socket939 nf4-sli based motherboards and it will not work in either
(Testing included testing 1x and 4x slots modified to accept the 8x card, using 16x pcie for the HBA and old pci gfx card, and the SLI...
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