First post, by wierd_w
Ok, It's rude of me to hijack somebody else's thread, so here is one of my own instead.
About two weeks ago, I scored a pair of what looks like 30 or 40U 4 post racks for free, after we upgraded the in-house cable system.
They have an antedeluvian 12 channel analog cable TV system installed, that can accept what looks like analog composite inputs, and then encode and combine them for a local cable tv system. I dont need that, but maybe someday I'll play with it.
Just not today.
I took my dirty, used shelves home and put them in my 'for projects' room, which happens to also be where I am growing some indoor tomatoes. (Which is why images of this room are bathed in purple glow. The DEA will be sorely disappointed.)
For completeness and to avoid the inevitable commentary, yes, really. Tomatoes.
Yesterday, I got 2 Netapp DS2246 SAS shelves (full of 900gb sas disks) delivered and installed in the racks.
These shelves need a special cable, but are otherwise just dumb SAS shelves that can work with a generic SAS HBA in a linux box, which is how I intend to do this build.
I have centered the shelves with 4U of space between them, so I can put the head unit (after I build it) in that space, then have primary array shelves on the top part of the rack going up, and mirror array shelves on the bottom going down, in a nice orderly manner.