EMC CX3-10 User manual

1
This document explains how to install CX3-series hardware in cabinets
that conform to the National Electrical Manufacturer’s Association
(NEMA) standards for 19-inch cabinets (in which the left and right
mounting channels are 19 inches apart). It covers mounting hardware
for SPS, SPE3, and DAE3P components, and describes how to cable the
system to AC power and set up the back-end (disk I/O) bus. In most
cases, the illustrations and examples refer to standard cabinets that are
40U tall.
Topics are:
◆Device placement requirements......................................................... 1
◆Device height requirements................................................................ 5
◆Power requirements............................................................................. 4
◆Installing a 1U storage processor enclosure (SPE3) in a cabinet.... 8
◆Installing a 1U SPS tray and SPS units in a cabinet....................... 13
◆Installing a 3U disk enclosure (DAE3P) in a cabinet..................... 20
◆Setting up an installed storage system............................................ 28
Note: Instructions for adding switches to a storage system are included in the
device-specific documentation that accompanies the switch.
Device placement requirements
This document provides the steps required to install rails and enclosures
in both EMC and non-EMC cabinets. Unless otherwise specified, the
illustrations depict the 40U-C cabinet.
EMC
Rails and Enclosures
(CX3-10 Class and CX3-20 Class Storage Systems)
Field Installation Guide
P/N 300-004-546
REV A03
July 20, 2007

2EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide
Device placement requirements
Figure 1 Typical cabinet front and rear views
Before attaching the mounting rails or trays in any cabinet, you must
decide where to put them. Where you install the devices depends on
the kinds of devices you will install and the height of each device.
Position in the cabinet
Devices with internal cooling fans or blowers that move air from
front to back (or vice versa) and not from beneath or above have no
special cooling requirements that direct placement in the cabinet. All
of the storage systems and enclosures mentioned in this document
have fans or blowers that move air from front to back.
EMC220
3
Fr
o
nt R
ea
r

EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide 3
Device placement requirements
In most cases, you should install devices starting at the bottom of the
cabinet. Installing bottom to top offers the advantages of stability and
convenient cable access from beneath.
We recommend the device placement configuration shown (from the
rear) in Figure 2.
Figure 2 Sample device placements with an SPE3
Note: Place the disk enclosure (DAE3P) that contains specially marked "array
software" disks 0-4 as close as possible to the CX3-series storage processor
enclosure (SPE3). In most cases, install that first enclosure (sometimes called
the DAE3P-OS, or vault) directly above the standby power supply (SPS).
Stack additional DAE3Ps directly above the DAE3P-OS.
EMC3477
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EXPPRI
EXP
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A
B
SPE3
1U SPS
DAE3P-OS

4EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide
Power requirements
Review your plan to make sure all devices will fit in the cabinet. It is
also important to verify cabling lengths before installing any
enclosure.
Power requirements
Power distribution must support the number of outlets required for
the device and the device power rating.
Use the published technical specifications and device rating labels to
determine the current draw of each device in your cabinet and
calculate the total. Use the following values to calculate current draw
for CX3-series storage-system components.
Note: These are maximum ratings for a class family, to guide the
sizing of power distribution components at the rack level. Since model
configurations and drive types vary, they may not be appropriate to
estimate typical power consumption.
Note: For high availability, the left and right sides of any rack or cabinet must
receive power from separate branch feed circuits.
CX3-10//20
1000 W SPS
SPE3
(CX3-10)
SPE3
(CX3-20)
DAE3P
disk enclosure
0.2 A@ 100 V AC
0.1 A @ 200 V AC
2.4 A @ 100 V AC
1.5 A @ 200 V AC
3.3 A @ 100 V AC
1.9 A @ 200 V AC
4.4 A @ 100 V AC
2.2 A @ 200 V AC

EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide 5
SPE3, DAE3P, and SPS operating limits
SPE3, DAE3P, and SPS operating limits
The ambient temperature specification is measured at the front bezel
inlet. The site must have air conditioning of the correct size and
placement to maintain the specified ambient temperature range and
offset the heat dissipation listed below.
IMPORTANT: For systems mounted in a cabinet, the operating limits listed
above must not be exceeded inside the closed cabinet. Equipment mounted
directly above or below an SPE3 storage system must not restrict the
front-to-rear airflow of the storage system. The cooling airflow through the
storage system is approximately 64 cubic feet per minute (cfm). Cabinet
doors must not impede the front-to-rear airflow. The cabinet must exhaust air
at a rate that is equal to or greater than the sum of the exhaust rates of all the
equipment mounted in the cabinet. For example, in a cabinet containing one
SPE3 (64 cfm) and six DAE3Ps (55 cfm), the cabinet must exhaust at least
64+6x55 cfm, which equals 394 cfm.
Device height requirements
Device height requirements and cabinet mounting measurements are
based on NEMA units (U’s). See Table 1.
Requirement Description
Ambient temperature 10°C to 40°C (50°F to 104°F)
Temperature gradient 10°C/hr (18°F/hr)
Relative humidity 20% to 80% noncondensing
Elevation 2438 m (8,000 ft) at 40°C
3077 m (10,000 ft) at 37°C
Table 1 NEMA unit heights
Number of U’s Actual height
1U 1-3/4 inches
2U 3-1/2 inches
3U 5-1/4 inches
4U 7 inches

6EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide
Device height requirements
The predrilled holes in the cabinet channels are based on the U
measurement. The holes are predrilled at distances of 1/2 inch, 5/8
inch, 5/8 inch (totaling one U), then 1/2 inch, 5/8 inch, 5/8 inch
(another U), and so on. On EMC 40U and 40U-C cabinets, the 1U
increments are marked by a horizontal line or small hole in the
channel. See Figure 3 on page 7 on the next page.
Table 2 lists the vertical space requirements of typical rackmounted
devices.
Table 2 Height requirements of typical devices
Height
Number of
cabinet channel holes Typical device example
1U, 1-3/4 in, 45 mm 3 CX3-10, CX3-20 and
CX3-40 SPS, CX3- series
SPE3, some switches
2U, 3-1/2 in,90 mm 6 CX3-80 SPS,
some switches
3U, 5-1/4 in, 133 mm 9 EMC DAE2P, DAE3P
4U, 7 in, 178 mm 12 CX3-series SPE2

EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide 7
Device height requirements
Figure 3 U increments in a cabinet front channel
EMC2205
1
2
3
4
5
6
7
8
1U (1.75-in.)
Increment

8EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide
Installing a 1U storage processor enclosure (SPE3) in a cabinet
Installing a 1U storage processor enclosure (SPE3) in a cabinet
Follow the steps below to install a 1U SPE3 device in a standard 19"
NEMA cabinet.
Enclosure mounting kit
Before you start, be sure you have all the materials listed in Table 3.
Tools are not part of your purchased enclosure assembly.
Installing the adjustable rails
1. Locate and unpack the rail kit that accompanied your enclosure.
The front edge of each rail is stamped L or R for left and right
sides, when they face the cabinet front.
Table 3 Enclosure mounting kit materials
Component Use
2 adjustable rails (20.5-34 inches) Attach front to back on either side
between NEMA channels in a standard
19" cabinet
Ten (10) Phillips M5 12.7 mm screws Attach the rail mounting hardware in a
40U cabinet
2 latch brackets
Secure 1U bezel in 40U cabinets
1U bezel (front rack panel) with keys EMI shielding
EMC3429
(L)
(R)

EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide 9
Installing a 1U storage processor enclosure (SPE3) in a cabinet
2. From the front of the cabinet, insert the alignment pin on the right
mounting rail assembly into the middle hole of the selected 1U
space on a rear channel. Figure 4 shows the correct channel holes
for the alignment pins.
Figure 4 Aligning pins in a 1U section on the cabinet rear rails
1U
Alignment Pin
Here
EMC29
2

10 EMC Rails and Enclosures (CX3-10 Class and CX3-20 Class Storage Systems) Field Installation Guide
Installing a 1U storage processor enclosure (SPE3) in a cabinet
Refer to Figure 5 as you perform steps 3through 6.
3. Pull the adjustable rail forward to the inner side of the front
channel (the surface facing the rear of the cabinet), and align the
three holes on the rail with those in the channel.
4. Secure the rail to the front channel using one of the provided
screws at the top hole of the rail. Leave the screw slightly loose to
allow for adjustment after you install the enclosure.
5. Repeat steps 2through 4on the left side, with the left rail.
6. From the rear of the cabinet, use two of the provided screws to
secure each rail to the rear channel. Tighten the screws.
Figure 5 Installing the adjustable mounting rails
EMC3430
Right rear
Screw (2)
Mounting rail Alignment pin
Left front
Screw (1)
Mounting rail
Alignment pin
Alignment pin
Adjustable rail
Front