Revolution 2522 Installation

2522/2532 Installation
P/N: 83-00004525-11
Revision A
August 2009
© <Copyright>
Revision A edition August 2009
Product names mentioned herein may be trademarks of their
respective companies as reflected by an associated footnote. The
information in this document is subject to change without notice.
Printed in <the US>.
Copyright Protected Material 2009. All rights reserved.
R/Evolution and the R/Evolution logo are trademarks of Dot Hill
Systems Corp. All other trademarks and registered trademarks
are proprietary to their respective owners.
The material in this document is for information only and is subject
to change without notice. While reasonable efforts have been
made in the preparation of this document to assure its accuracy,
changes in the product design can be made without reservation
and without notification to its users.
Dot Hill assumes that the person using these instructions
is qualified in the servicing and installation of storage
products.

Before you begin

• Verify that the installation site meets the enclosure's
requirement for:
• Space and airflow
• Temperature
• Power
For detailed information regarding installation
requirements, see 2522/2532 information within the
web-posted R/Evolution 2002 Series Setup Guide
(setup guide hereafter).
• Considering your system configuration and weight
distribution in the rack or cabinet, determine where you
will install each enclosure within the rack or cabinet.
• Confirm that you have cables of appropriate type and
length (described herein) to connect to hosts and to
power outlets.
CAUTION: Two people are needed to lift and move
the enclosure. Use care to avoid injury.
CAUTION: Electrostatic discharge can damage
sensitive components. Be sure you are properly
grounded before touching a static-sensitive
component or assembly.

Required tools

• #2 Phillips screwdriver
• Standard screwdriver
• Antistatic protection devices
Controller/drive enclosure installation
hardware
• Controller enclosure
• Controller enclosure ear caps (2 per enclosure)
• Drive enclosure(s)
• Micro-DB9 serial cable (1 per controller module)
• Ethernet cables (1 per controller; not included)
• Power cords (2 per enclosure)
• SAS cables (1 per expansion module)
IMPORTANT: Before installing, see the "Installation
Checklist" in the web-posted setup guide.
1. Install and secure enclosures into

the rack

Use the R/Evolution Rackmount Bracket Kit Installation
instructions provided with your rail kit when installing and
securing enclosures into the rack.
Rear panel
rack mounted
component
locator view

2. Install hardware options

Install any additional disk drives and options. Refer to the
installation instructions provided with your option.

3. Cabling

Common cabling configurations address hosts, switches,
controller modules (featuring Serial-attached SCSI (SAS)
host interface protocol ), and expansion modules.

Direct connection

The 2522 and 2532 each support four server connections,
two per controller. Fault tolerance and performance
requirements determine whether to optimize the
configuration for high availability or high performance
when cabling.
Connect the appropriate cable type from the host ports on
each controller to the corresponding HBA on each server.
Several examples follow.
One server/single path
Cable required: 1 - Serial-attached SCSI (Mini-SAS 4x)
Server
One server/dual path
Cables required: 2 - Serial-attached SCSI (Mini-SAS 4x)
Server
Two servers/dual path
Cables required: 4 - Serial-attached SCSI (Mini-SAS 4x)
Server

Switch connection

The 2522 and 2532 support four switch connections, two
per controller. Connect SAS cables from controller host
ports to switch ports, and from switch ports to hosts. See
the web-posted setup guide for details.
Two servers/two switches
Cables required: 8 - Serial-attached SCSI (Mini-SAS 4x)
Server
SWA
0A
0B

Connecting remote management hosts

The management host directly manages systems
out-of-band over an Ethernet network:
1. Connect an Ethernet cable to the network port on each
controller.
2. Connect the other end of each Ethernet cable to a
network accessible by your management host
(preferably on the same subnet).

Drive enclosure cable requirements

Follow the guidelines and cabling table below when
installing SAS cables connecting controller and drive
0A
enclosures:
• Use R/Evolution or OEM-qualified SAS 4x cables with
3Gb connectors to connect a controller enclosure to
drive enclosures as specified below:
• Up to three 2122s per 2522/2532
• Up to six 2130s per 2522
• Up to seven 2130s per 2532
• You may need to order additional or longer cables if you
0A
are cabling a fault-tolerant configuration.
0B
• Reverse cabling ensures the highest level of fault
tolerance, enabling controllers to access remaining
drive enclosures, if a drive enclosure fails.
Server
0A
0B
Server
SWB