New new rack

This is a 4 post DAMAC rackmount cabinet, 47U in height. Adjustable depth verticals, currently set for 29 inches. This unit bears serial number 008392. No model number is evident. Sides and doors are removed due to a lack of space.

This rack was purchased from the good folks at Genesis Electronics Recycling.

Square holes, round holes, brackets and such

Got rack mount hardware (shelves or brackets) already set up with threaded screw holes? (Screws go through the rack's uprights into threaded holes in the rackmount hardware behind the uprights.) Want to put it in a square hole rack and still have things line up? Are the heads on your #10-32 machine screws small enough that they go right through the rack? Here's what I've done:

• Acquire (2) 3/8 inch outer diameter nylon flat washers for each hole
• Acquire (1) 7/16 or 1/2 inch outer diameter metal flat washer for each hole
• Place metal flat washer on screw
• Place nylon flat washers on screw
• Attach screw, guiding nylon washers into square holes on rack uprights
• Enjoy the well aligned, secure connection between the rack and shelf/brackets

My local Lowes store carried everything to make this work, mounting the round hole Dell rails in the square hole DAMAC rack. Parts list:

• #10 nylon washers, .375 (3/8) inch outer diameter, 2 for each hole (32 total to mount two sets of rails)
• #10 metal flat washer, 1 for each hole (16 total to mount two sets of rails)
• Dell rackmount rails for PowerEdge 2650 and PowerEdge 2850
• #10-32 screws for Dell rails

Rack contents

elevation	front/rear	make and model	serial number	hostname	notes
47	rear	Force10 Networks S50	DE4543035	theupperforce10switch
46	rear	Ortronics cable organizer			OR-FCM-19-1XL or something similar
45	rear	Force10 Networks S50	DE4624139	thelowerforce10switch
47-45	front	Ortronics 3U shelf, 12 inches deep			Currently contains a power strip (attached to UPS at bottom of rack), two external USB hard drives, and the cable modem.
44	rear	Qlogic SANbox 2	S04080008	thefcswitch
43	front/rear	SilverStorm 9024 (9024-CU24-ST2)	00000242	theibswitch	I move bits around really fast
42	front/rear	shelf			The FC switch at elevation 44 sits atop the Infiniband switch at elevation 43, which sits on this shelf.
41	front/rear	Dell PowerEdge 1950	FD5RMF1	sacredchao
40-27	front/rear	Dell PowerVault 136T	83TD511	honkingbigtapelibrary	big old honking huge LTO library. It might be nice to replace this with something like an HP MSL6060 (60 slots and 4 drives in 10U (4U smaller than this one) with more modern drives available) some day. But the PV136T is perfectly serviceable for the present.
26	rear	APC Masterswitch AP9210	WA9913001274		Horizontally mounted, network attached rackmount PDU
24	front/rear	Sun SunFire V20z	XG443888262		1U Wintel (AMD Opteron, actually) server
23	front/rear	shelf
22-20	front/rear	JNCS ?????	?????	bitkeeper	nothing to do with BitMover, Inc. software. It's the backup server. (Clever name, what?)
19	front/rear	Dell PowerEdge 1950	1G5RMF1	gulik
18-17	front/rear	Dell PowerEdge 2950	GT54RF1	van-van-mojo
16	front/rear	IBM x330 (8674-11X)	78-GR473	hungmung	Serial number found on sticker on bottom of case
14	front/rear	LeftHand Networks NSM100	1F01300240312		1U iSCSI storage appliance
13	front/rear	Sun SunFire V210	FM33910143	bitemelarry	1U SPARC system
12	front/rear	Sun SunFire X4100	0552AM1984
10	front/rear	Apple Xserve G5/2.3 DP (PCI-X)	QP5260YBSLZ	kallisti	1U two socket PowerPC Mac server
9-8	front/rear	HP 9000 A500 (rp2470)	USR4304CDC		2U PA-RISC server
6-5	front/rear	Dell PowerEdge 2650	5FMFZ51		future test lab machine
4-3	front/rear	Dell PowerEdge 2850	77RL171		future test lab machine
2-1	front/rear	APC SmartUPS 1400	AS0243110956	keepsmegoing