Quantum QXS-448 User manual

QXS 48-Drive Rackmount Install
Guide
This document contains the following topics:
Before You Begin 2
Attach side brackets 4
Rails Assembly 5
Install Rails (Square, Round, Pre-tapped Hole-Racks) 7
Install and Secure the Chassis 21
Next Steps 24
© 2016 Quantum Corporation. All rights reserved. Artico, Be Certain, DLT, DXi, DXi Accent, DXi V1000, DXi V2000,
DXi V4000, GoVault, Lattus, NDX, the Q logo, the Q Quantum logo, Q-Cloud, Quantum, the Quantum logo, Quantum Be
Certain, Quantum Vision, Scalar, StorageCare, StorNext, SuperLoader, Symform, the Symform logo, vmPRO, and Xcellis
are either registered trademarks or trademarks of Quantum Corporation and its affiliates in the United States and/or other
countries. All other trademarks are the property of their respective owners. Quantum specifications are subject to change.
6-68391-01 Rev C, December 2016 *6-68391-01*

Before You Begin
QXS 48-Drive Rackmount Install Guide 2
Before You Begin
These instructions are for the following systems:
lQXS-448
lQXS-648
Complete the following:
lVerify that the installation site meets the chassis’s requirements for space and airflow, temperature, and
power (see the web-posted setup guide for your chassis).
lConsidering your system configuration and weight distribution, determine where you will install each
chassis within the rack or cabinet. Install the first chassis in the lowest rack space you plan to use. Install
each remaining chassis into the next-higher available space within the rack, until all chassis are secured
in place.
lConfirm that you have cables of appropriate type and length to connect to hosts and to power outlets.
Caution: Be sure you are properly grounded before touching a static-sensitive component to minimize
potential for electronic discharge.
The person using these instructions must be qualified to service and install storage products.
Caution: Two people are needed to lift and move the chassis. Use care to avoid injury.
Required Tools
Required tools include:
l#2 Phillips screwdriver
lAntistatic protection devices.

Before You Begin
QXS 48-Drive Rackmount Install Guide 3
Rackmount Bracket Kit Hardware
Use fasteners that pertain to your rack type.
Code Part description Qty
Rails and brackets
- Side bracket 2
- Left rail (front sleeve with rear insert) 1-ea.
- Right rail (front sleeve with rear insert) 1-ea.
Screws
A #8-32 x 3/16, FH100, PLP, SS 4
B #8-32 x 3/8, FH, PLP2, SS 6
C #10-32 x 3/4, Truss, PLP, SS; or
M5 x 10, PH, PLP2, SS; or
M6 x 10, PH, PLP2, SS; or
#12-24 x 3/8, PH, PLP, SS
8
D #10-32, Shoulder, Round hole mtg; or
#10-32, Shoulder, Square hole mtg; or
#10-32 x 0.319, FH100, PLP2, SS; or
M5 x 8.4, FH, PLP2, SS; or
M6 x 9.4, FH, PLP2, SS; or
#12-24 x 0.354, FH100, PLP2, SS
4
E #6-32 x 1/4, PH, PLP, SS, Patchlock 3
Nuts
F #10-32, STL - Cage Nut; or
#10-32, UNF - Clip Nut
8
Use fasteners that pertain to your rack type.

Attach side brackets
QXS 48-Drive Rackmount Install Guide 4
Figure 1: 48-Drive Storage Chassis (bezel and disks are not installed)
Attach side brackets
Using a total of four #8-32 x 3/16 flathead Phillips screws (two per bracket), attach the side bracket to rear
mounting holes on each side of the chassis.
Figure 2: Attaching Side Brackets
11
1. Screw: Code A — P/N: 01-00000142

Rails Assembly
QXS 48-Drive Rackmount Install Guide 5
Rails Assembly
Note: The two rail kit installation pictorials immediately following show the left and right rails viewed
from the front and looking rearward. An assembly and an exploded view is provided for each rail.
Left Rail Assembly
Complete steps 1–3 to assemble the rails.
Note: Refer to callout 1 in Figure 3 below for the assembled left rail (ready for installation into the rack).
1. Slide the rear rail insert (callout 4, Figure 3 below) into the front rail sleeve (callout 2, Figure 3 below).
Figure 3: Left Rail Kit Components (assembly and exploded views)
1
23
4
5
1. Left rail assembly
2. Front rail sleeve
3. Rail shelf
4. Rear rail insert
5. Screw: Code B - P/N: 01-00000262-00-01
2. To determine the cabinet depth required by the rails, fit the rail assembly (callout 1) to the rack and note
which tapped holes in the rear rails align with the front rail’s slotted holes. If cage nuts are pre-installed,
remove them.

Rails Assembly
QXS 48-Drive Rackmount Install Guide 6
3. Using the measurements recorded in sub-step 2 above, select two or three #8-32 x 3/8 flathead Phillips
screws (depending on your cabinet depth) to loosely attach the rear rail insert (callout 4) to the front rail
sleeve (callout 2).
You will tighten the screws later.
Right Rail Assembly
Complete steps 1-3 above to assembly the right rail.
Figure 4: Right Rail Kit Components (assembly and exploded views)
1
2
3
4
5
1. Right rail assembly
2. Front rail sleeve
3. Rail shelf
4. Rear rail insert
5. Screw: Code B - P/N: 01-00000262-00-01

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 7
Install Rails (Square, Round, Pre-tapped
Hole-Racks)
This section provides the rail installation of three different types of racks. Information is as follows:
lSquare Hole-Rack Rail Installation below
lRound Hole-Rack Rail Installation on page 12
lPre-tapped Hole-Rack Rail Installation on page 16
Square Hole-Rack Rail Installation
Complete steps 1–4 to install the rails.
1. For square-hole racks, install cage nuts in the front rack holes where chassis ears will be attached.
a. Before rail installation, refer to Figure 5 below for location of screws and cage nuts for the front
of the chassis.
Figure 5: Screws and Cage Nuts for Chassis Front
1 2
4
3
4
3
4
3
4
3
1. Left Rail
2. Right Rail
3. Screws Installed into Threaded Holes in Rail
4. Cage Nut Installed (for chassis screws)
b. Before rail installation, refer to Figure 6 on the next page for location of screws and cage nuts for
the rear of the chassis.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 8
Figure 6: Screws and Cage Nuts for Chassis Rear
1
2
3
4
3
4
4
4
1. Left Rail
2. Right Rail
3. Screws Installed into Cage Nut
4. Cage Nuts Installed in Rack
Note: If you insert the cage nuts incorrectly, use a Cage Nut Removal Tool to easily remove the
cage nuts from the rack holes.
Position the rail's front and back mounting flanges so that through holes align with corresponding rack
holes, and note the locations.
Note: Align the bottom of the rail with the bottom of the rack unit where you would like to install the
rails. Rails should not be installed where the rail will straddle rack units (U). Most racks provide
alignment markers indicating the rack units used for rail installation.
Attach two cage nuts at the front of the rack, and two at the rear, per the red "X" marks shown in the
following installation detail views (Figure 7 on the next page).
Note: The rail kit supports either the RAID (controller) or expansion chassis.
On the following diagram, elevation numbers are arbitrary and represent vertical location within the
rack.The 1U rack heights are shown next to cage nut installation locations.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 9
Figure 7: Cage Nut Placement
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
1
2
3
1. Cage nut (Code F — P/N: 01-00000279-00-04
or 01-00000270-00-01)
2. Front View
3. Rear View
Note: Install the cage nuts at the same square hole elevations—two per column—on all four rack
posts.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 10
2. For the square-hole racks, use two shoulder screws of the appropriate size (square-hole shoulder) to
attach the front of the rail assembly to the front of the rack.
Do so by attaching the screws through the two tapped holes on the front rail. See Figure 8 below.
Figure 8: Rail Attachment to Front of Rack (screws fastened to back of rack post - facing rearward)
l
12
12
12
1. Left rail with square holes
2. Right rail with square holes
3. Depending upon rack type, use two #10-32 x 3/4 truss Phillips screws or #12-24 x 3/8 Phillips screws or
appropriate metric (5 or 6 mm) pan head screws to attach the rear rail assembly to the rear of the rack.
See Figure 9 on the next page.
Use one of the following Code C screws (part numbers):
l01-00000264-00-01
l01-00000267-00-01
l01-00000269-00-01
l01-00000190
Note: While tightening the screws, push the rails outward to maximize the opening width.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 11
Figure 9: Rail Attachment to Rear of Rack (screws fastened to the cage nuts)
4
33
21
4
44
1. Left rail
2. Right rail
3. Screws
4. Cage nuts (installed in rack)
4. Tighten the two screws that secure the two rail pieces (front and rear). See Figure 10 below.
Figure 10: Installed Rail Kit Assemblies (securing two rail pieces together)
1
2
3
Note: Callouts apply to both rails
1. Left rail assembly
2. Right rail assembly
3. Installed depth

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 12
5. Repeat steps 1–4 to secure the other side of the rail kit.
Round Hole-Rack Rail Installation
Complete steps 1–4 to install the rails.
1. For round-hole racks, install clip nuts in the front rack holes where chassis ears will be attached.
a. Before rail installation, refer to Figure 11 below for location of screws and clip nuts for the front
of the chassis.
Figure 11: Screws and Clip Nuts for Chassis Front
3123
4
45
5
1. Left Rail
2. Right Rail
3. Round-Hole Rack
4. Threaded Holes on Rail (for installing rails into rack)
5. Clip Nuts Installed (for chassis screws)
b. Before rail installation, refer to Figure 12 below for location of screws and clip nuts for the rear of
the chassis.
Figure 12: Screws and Clip Nuts for Chassis Rear
12
3
3
44

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 13
1. Left Rail
2. Right Rail
3. Round-Hole Rack
4. Clip Nuts Installed in Rack
Note: If you insert the clip nuts incorrectly, simply remove the nuts from the rack holes and
reinsert.
Position the rail's front and back mounting flanges so that through holes align with corresponding rack
holes, and note the locations.
Note: Align the bottom of the rail with the bottom of the rack unit where you would like to install the
rails. Rails should not be installed where the rail will straddle rack units (U). Most racks provide
alignment markers indicating the rack units used for rail installation.
Attach two clip nuts at the front of the rack, and two at the rear, per the red "X" marks shown in the
following installation detail views (Figure 13 below).
Note: The rail kit supports either the RAID (controller) or expansion chassis.
On the following diagram (representative rack only used for clip nut placement), elevation numbers are
arbitrary and represent vertical location within the rack. The 1U rack heights are shown next to clip nut
installation locations.
Figure 13: Clip Nut Placement
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
2
3
1
1. Clip nuts
2. Front View
3. Rear View

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 14
Note: Install the clip nuts at the same round hole elevations—two per column—on all four rack
posts.
2. For the round-hole racks, use two shoulder screws of the appropriate size (round-hole shoulder) to
attach the front of the rail assembly to the front of the rack.
Do so by attaching the screws through the two tapped holes on the front rail. See Figure 14 below.
Figure 14: Rail Attachment to Front of Rack (screws fastened to back of rack post - facing rearward)
1 2
3
3
1. Left rail (front)
2. Right rail (front)
3. Screws (for installing rails)
3. Depending upon rack type, use two #10-32 x 3/4 truss Phillips screws or #12-24 x 3/8 Phillips screws or
appropriate metric (5 or 6 mm) pan head screws to attach the rear rail assembly to the rear of the rack.
See Figure 15 on the next page.
Use one of the following Code C screws (part numbers):
l01-00000264-00-01
l01-00000267-00-01
l01-00000269-00-01
l01-00000190
Note: While tightening the screws, push the rails outward to maximize the opening width.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 15
Figure 15: Rail Attachment to Rear of Rack (screws fastened to the clip nuts)
12
3
3
1. Left rail
2. Right rail
3. Screws (clip nuts installed in rack)
4. Tighten the two screws that secure the two rail pieces (front and rear). See Figure 16 below.
Figure 16: Installed Rail Kit Assemblies (securing two rail pieces together)
1
2
3

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 16
Note: Callouts apply to both rails
1. Left rail assembly
2. Right rail assembly
3. Installed depth
5. Repeat steps 1–4 to secure the other side of the rail kit.
Pre-tapped Hole-Rack Rail Installation
Complete steps 1–4 to install the rails.
1. For pre-tapped hole-racks, only screws are required to attach the rails to the rack.
a. Before rail installation, refer to Figure 17 below for location of screws and pre-tapped holes on
the front of the rack.
b. The rail slides in behind the pre-tapped section of the rack.
Figure 17: Pre-tapped Holes to Mount Rails for Chassis Front
12 33
4
4
5
5
1. Left Rail
2. Right Rail
3. Pre-tapped Hole-Rack
4. Holes on Rail (for installing rail mounting screws to
rack)
5. Holes to Secure Chassis to Rack

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 17
c. Before rail installation, refer to Figure 18 below for screw location and placement of the rail for
mounting to the rear of the rack.
d. The rails go over the outside of the rack.
Figure 18: Screw Locations for Mounting Rails (rear)
3
2
3
4
4
1
1. Left Rail
2. Right Rail
3. Pre-tapped Hole-Rack
4. Screw Locations to Install Rail
Position the rail's front and back mounting flanges so that through holes align with corresponding rack
holes, and note the locations.
Note: Align the bottom of the rail with the bottom of the rack unit where you would like to install the
rails. Rails should not be installed where the rail will straddle rack units (U). Most racks provide
alignment markers indicating the rack units used for rail installation.
Refer to Figure 19 on the next page for placement of the rails within the rack. The red "X" identifies the
height of the chassis (2U) to be installed.
Note: The rail kit supports either the RAID (controller) or expansion chassis.
On the following diagram (representative rack only used for chassis placement), elevation numbers are
arbitrary and represent vertical location within the rack.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 18
Figure 19: Rail Placement in Rack
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
21
25
24
25
24
1 2
1. Front View 2. Rear View
2. For the racks with pre-tapped holes, use two flathead screws of the appropriate size (#10-32, #12-24,
M5, or M6) to attach the front of the rail assembly to the front of the rack using the two countersunk
holes.
Use one of the following Code D screws (part numbers):
l01-00000312-00-01
l01-00000313-00-01
l01-00000314-00-01
l01-00000318-00-01
Do so by attaching the screws through the two tapped holes on the front of the rail. See Figure 20 on
the next page.

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 19
Figure 20: Rail Attachment to Front of Rack (screws fastened to back of rack post)
1 2
1. Right rail 2. Left rail
3. Depending upon rack type, use two #10-32 x 3/4 truss Phillips screws or #12-24 x 3/8 Phillips screws or
appropriate metric (5 or 6 mm) pan head screws to attach the rear rail assembly to the rear of the rack.
See Figure 21 below.
Use one of the following Code C screws (part numbers):
l01-00000264-00-01
l01-00000267-00-01
l01-00000269-00-01
l01-00000190
Note: While tightening the screws, push the rails outward to maximize the opening width.
Figure 21: Rail Attachment to Rear of Rack (pre-tapped hole in rack)
12
12
12

Install Rails (Square, Round, Pre-tapped Hole-Racks)
QXS 48-Drive Rackmount Install Guide 20
1. Right rail 2. Left rail
4. Tighten the two screws that secure the two rail pieces (front and rear). See Figure 22 below.
Figure 22: Installed Rail Kit Assemblies (securing two rail pieces together)
1
2
3
Note: Callouts apply to both rails
1. Left rail assembly
2. Right rail assembly
3. Installed depth
5. Repeat steps 1–4 to secure the other side of the rail kit.