Cisco C880 M4 User manual

Operating Manual
Cisco C880 M4 Storage Subsystem
Operating Manual
October , 2014

2 Operating Manual
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET
THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE
LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public
domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS”
WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE
OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES,
INCLUDING,WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS
MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to
this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the
document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
© 2014 Cisco Systems, Inc. All rights reserved.

1.Introduction
3
Contents
Cisco C880 M4 Storage Subsystem.............................................................................................................1
1. Introduction...............................................................................................................................................5
1.1. Notation Conventions........................................................................................................................5
1.2. Technical Data..................................................................................................................................5
2. Important Notes ........................................................................................................................................7
2.1. Notes on Safety ................................................................................................................................7
2.2. Electrostatic-sensitive Component Label..........................................................................................9
2.3. CE Certificate................................................................................................................................. 10
2.4. RFI Suppression ............................................................................................................................ 10
2.5. Notes on Mounting the Rack ......................................................................................................... 10
2.6. Notes on Transportation ................................................................................................................ 10
3. Operating and Indicator Elements......................................................................................................... 11
3.1. Switches on the Front Side............................................................................................................ 12
3.2. Indicator Elements on the Front Side ............................................................................................ 12
Operating Status LEDs........................................................................................................... 133.2.1.
Status LEDs of the Hard Disk Drives..................................................................................... 143.2.2.
Enclosure ID Label................................................................................................................. 143.2.3.
3.3. Indicator Elements on the Rear Side............................................................................................. 15
Status LEDs of the SAS Expander Unit................................................................................. 153.3.1.
Status LED of the Power Supply Units................................................................................... 153.3.2.
Enclosure ID Label................................................................................................................. 163.3.3.
Unit Numbering ...................................................................................................................... 173.3.4.
3.3.4.1. Hard Disk Drives................................................................................................................. 17
3.3.4.2. Power Supply Units and Expander Unit............................................................................. 17
4. Power Supply......................................................................................................................................... 18
4.1. Power Supply Units........................................................................................................................ 18
Replacing a Power Supply Unit.............................................................................................. 18
4.1.1.
5. Hard Disk Drives.................................................................................................................................... 20
5.1. Handling Hard Disk Drives............................................................................................................. 20
5.2. Removing/Installing Hard Disk Drive/Blank Insert......................................................................... 21
5.3. Hot-Plug for Hard Disk Drives........................................................................................................ 25
6. Connections........................................................................................................................................... 26
6.1. SAS Connection............................................................................................................................. 26
6.2. Mains Connection .......................................................................................................................... 28
7. Configurations........................................................................................................................................ 29
7.1. Basic Configuration........................................................................................................................ 29
7.2. Maximum Configuration................................................................................................................. 30

1.1Notation Conventions
4 Operating Manual
8. Installation.............................................................................................................................................. 31
8.1. Installation Steps............................................................................................................................ 31
8.2. Unpacking the Storage Subsystem ............................................................................................... 31
8.3. Installing the Storage Subsystem in the Rack............................................................................... 32
Installing in the Rack.............................................................................................................. 328.3.1.
8.4. Switching the Storage Subsystem ON/OFF .................................................................................. 36
9. Fault Clearing......................................................................................................................................... 37
9.1. Problem Solutions and Tips........................................................................................................... 38
Power Supply Status LED (Front).......................................................................................... 389.1.1.
9.1.1.1. Power supply status LED remains dark ............................................................................. 38
Identification Status LED........................................................................................................ 38
9.1.2.
9.1.2.1. Identification status LED is on............................................................................................ 38
Fault Status LED.................................................................................................................... 399.1.3.
9.1.3.1. Fault status LED is on during operation............................................................................. 39
Storage Subsystem Switches OFF ........................................................................................ 399.1.4.
System does not Start Up after New Drives have been Installed.......................................... 399.1.5.
Ready LED of the Hard Disk Drive does not Come ON......................................................... 399.1.6.
Drives “dead” on System Start ............................................................................................... 409.1.7.
RAID Controller Indicates the Added Drive to be Incorrect.................................................... 409.1.8.
Abbreviations ................................................................................................................................................ 41
Figure............................................................................................................................................................ 47
Table ............................................................................................................................................................. 48

1.Introduction
5
1.Introduction
The storage subsystem can accommodate up to 24 2.5“ hard disk drives. If it is equipped, e.g. with 24 300
Gbyte hard disk drives, approximately 7.2 Tbyte hard disk memory is available within one housing. A
maximum of three of them can be daisy-chained in a connection to one RAID controller port.
1.1. Notation Conventions
Italics
identifies commands and entries in flow text
Semibold
highlights text
”Quotation marks”
indicates references to other chapters or manuals
identifies an operation that you have to perform.
indicates additional information, notes and tips
CAUTION!
indicates warnings, which, if ignored, will endanger your health, the
operability of your server or the security of your data
Table 1: Notation conventions
1.2. Technical Data
ElectricalCharacteristics
Power supply
2 hot-plug modules with 864 W each (redundant)
Output power
681 W / 1+1each 681 W (without dissipation of the fan units)
Active power maximum
864 W each (including the dissipation of the fan units)
Apparent powermaximum
870 VA (with 100 VAC, 50 Hz)
Heat transfer
1390 kJ/h (1317 btu/h)
Rated voltage
100 V - 240 V
Rated current maximum
4.9 A - 1.9 A / 100 V - 240 V
Rated frequency
50 Hz - 60 Hz
Environmental Conditions (according to DIN EN 60721)
Temperature/operation
5°C to 40°C
Temperature/nonoperation
0°C to 50°C

1.2Technical Data
6 Operating Manual
Noise Development (according to ISO 9296)
LWAd (1 B = 10 dB)
IDLE (ISO 7779): 6.0 B
Operating (ISO 7779): 6.0 B
L
pAm
(bystanderposition)
IDLE (ISO 7779): 44 dB
Operating (ISO 7779): 44 d
Dimensions
Rack (H x W x D)
88 x 483 x 660 mm
2 height units
Weight
approx. 33.5 kg
(depending on the upgrading)

2.Important Notes
7
2.Important Notes
2.1. Notes on Safety
In this section you will find information that you must note when using the storage subsystem.
This device complies with the relevant safety standards for IT equipment.
If you have any questions relating to setting up and operating your system in the environment where you
intend to use it, please contact your sales outlet or our customer service team.
CAUTION!
●Transport the device in its original packaging or in other suitable packaging which will protect it
against shock or impact.
●Read the notes on environmental conditions in section "Technical Data" on page 12 before setting
up and operating the device.
●If the device is brought in from a cold environment, condensation may form both inside and on the
outside of the machine.
Wait until the device has acclimatized to room temperature and is absolutely dry before starting it
up. Material damage may be caused to the device if this requirement is not observed.
●Check that the rated voltage specified on the type label is the same as the local line voltage.
●The device must only be connected to a properly grounded wall outlet (the device is fitted with a
tested and approved power cable).
●Make sure that the power sockets on the device and the protective grounded outlet of the building’
s wiring system is freely accessible.
●Switching off the device does not cut off the supply of power. To do this you must remove the
power plugs.
●Before opening the unit, switch off the device and then pull out the power plugs.
●Route the cables in such a way that they do not form a potential hazard (make sure no-one can trip
over them) and that they cannot be damaged. When connecting up a device, refer to the relevant
notes in this manual.
●Never connect or disconnect data transmission lines during a storm (lightning hazard).
●Systems which comprise a number of cabinets must use a separate fused socket for each cabinet.
●The servers and the directly connected external storage subsystems should be connected to the
same power supply distributor. Otherwise you run the risk of losing data if, for example, the central
processing unit is still running but the storage subsystem has failed during a power failure.

2.1Notes on Safety
8 Operating Manual
CAUTION!
●Make sure that no objects (such as bracelets or paper clips) fall into or liquids spill into the device
(risk of electric shock or short circuit).
●In emergencies (e.g. damage to housings, power cords or controls or ingress of liquids or foreign
bodies), immediately power down the device, pull out the power plugs and notify your service
department.
●Note that proper operation of the system (in accordance with IEC 60950-1/DIN EN 60950-1) is
guaranteed only if slot covers are installed on all vacant slots and/or dummies on all vacant bays
and the housing cover is fitted (cooling, fire protection, RFI suppression).

2.Important Notes
9
2.2. Electrostatic-sensitive Component Label
Electrostatic-sensitive components may be identified by the following sticker:
Figure 1: Electrostatic-sensitive component sticker
You must follow the instructions below when handling modules containing electrostatic-sensitive
components
Discharge static electricity from your body (for example by touching a grounded metal object) before
handling modules containing electrostatic- sensitivecomponents.
The equipment and tools you use must be free of static charge.
Remove the power plug before installing or removing modules containing electrostatic-sensitive
components.
Only hold modules containing electrostatic-sensitive components by their edges.
Do not touch any of the pins or track conductors on a module containing electrostatic-sensitive
components.
Use a grounding strap designed for the purpose, to connect you to the system unit as you install the
modules.
Place all components on a static-safe base.
An exhaustive description of the handling of modules containing electrostatic-sensitive
components can be found in the relevant European and international standards (DIN EN
61340-5-1, ANSI/ESD S20.20).

2.3CE Certificate
10 Operating Manual
2.3. CE Certificate
The shipped version of this device complies with the requirements of the EEC directives
89/336/EEC ”Electromagnetic compatibility“ and 73/23/EEC ”Low voltage directive“. The
device therefore qualifies for the CE certificate (CE=Communauté Européenne).
2.4. RFI Suppression
All other equipment which is connected to this product must also have radio noise suppression in
accordance with EC Guideline 89/336/EWG.
Products which meet this requirement are accompanied by a certificate to that effect issued by the
manufacturer and/or bear the CE mark. Products which do not meet this requirement may be operated
only with the special permission of the BZT (Bundesamt für Zulassungen in der Telekommunikation).
This is a “Class A“ equipment. This equipment may cause harmful interference inresidentialareas.
Inthis case, theuser maybe held liable for taking appropriate measures and bearing the costs
resulting from thesemeasures.
2.5. Notes on Mounting the Rack
●It is recommended that at least two people install the rack-mounted model because of its weight
and size.
●Ensure that the anti-tilt bracket is correctly mounted when you set up the rack.
●For safety reasons, no more than one unit may be withdrawn from the rack at any one time during
installation and maintenance work.
●If more than one unit is withdrawn from the rack at any one time, there is a danger that the rack will
tilt forward.
2.6. Notes on Transportation
Transport the storage subsystem in its original packaging or in other suitable packaging which will
protect it against shock or impact.
Do not unpack it until all transport maneuvers are completed.
If you need to lift or transport the storage subsystem, ask someone to help you.

3.Operating and Indicator Elements
11
3.Operating and Indicator Elements
This section describes the position and meaning of the operating and indicator elements on the storage
subsystem.
Figure 2: Switches (behind the bezel) and LEDs on the front side
Power LED(green)
Ready LED(green)
Fault LED(amber)
Identify LED(blue)
Power LED(green)
Ready LED(green)
Fault LED(amber)
Identify LED(blue)
DC-ON Switch
IP Reset (not used)
AutoPower
MODE_SEL
panel (with bezel)
panel (without bezel)

3.1Switches on the Front Side
12 Operating Manual
3.1. Switches on the Front Side
Therearethreeswitcheson thefrontside.Theyare available aftertakingoffthe bezel only and should not
be used by the customer.
DC-ON switch (pushbutton) / AutoPower / MODE_SEL
The switches should not be used by the customer (they are behind the bezel). In the default
settings, the storage subsystem powers ON/OFF automatically with the data host.
Default
setting
Operation
MODE_SEL
Off=down
On=Up
AutoPower
Off=down
On=up
Yes
Power ON: SAS signal detected
Power OFF: SAS signal not detected
ON
OFF
No*
Power ON: AC-ON and SAS signal d etected
Power OFF: AC-OFF
ON
ON
No*
Power ON: DC-ON Switch
PowerOFF:DC-ONSwitchformorethan 4 sec
and SAS signal not detected
OFF
OFF
No*
Power ON: AC-ON
Power OFF: AC-OFF or DC-ON Switch for
more than 4 sec"
OFF
ON
*: for service personnel and error diagnostics only
3.2. Indicator Elements on the Front Side
You can see the following on the front side of the storage subsystem:
– the four operating status LEDs which indicate the power supply, the ready status, the fault status and
the identification. The fifth LED (CACHE LED) is covered by the bezel.
– Status LEDs of the hard disk drives
There is a Ready LED and a Fault LED for each of the 24 possible hard disk drives.

3.Operating and Indicator Elements
13
Operating Status LEDs3.2.1.
– Power supply status LED (green)
– Ready status LED (green)
– Fault status LED (amber)
– Identification status LED
Fault clearing instructions can be found in the chapter “Fault Clearing”on page 37 of this manual.
Status LED
Color
Operating
Meaning
Power supply
Green
ON
DC power ON
OFF
DC power OFF
Ready
Green
ON
Normal operation
OFF
Not ready
Fault
Amber
OFF
No fault
ON
Error detected
Blinking*
ServerView RAID Manager created a warning
status for an error and it should be checked.
Identification
Blue
Blinking
Specifies the enclosure location
*:ServerView RAID Manager checks the system status every 60 seconds and it may take nearly this time
until blinking starts for warning (e. g. after removing a HDD). After clearing the error the firmware deletes
the Fault LED, but the RAID Manager may still indicate the old or signal a new warning and activates the
blinking again. When the reason for warning is omitted (e. g. the removed HDD is inserted again), the
RAID Manager stops blinking after a maximum of 60 seconds.

3.2Indicator Elements on the Front Side
14 Operating Manual
Status LEDs of the Hard Disk Drives3.2.2.
Figure 3: Status LEDs of the hard disk drives
– Ready LED (green)
– Fault LED (amber)
Status
LED
Color
Controllable
by host
Operating
Meaning
Ready
Green
No
Depending on HD type
Fault/
Identifi
cation
Amber
Yes
OFF
Normaloperation
ON
Error detected
Blinking
(2 Hz/1 Hz)
2 Hz: Specifies the HDD location;
1 Hz: Rebuild or copy back by RAID controller
Enclosure ID Label3.2.3.
Figure 4: Enclosure ID label on the front side

3.Operating and Indicator Elements
15
3.3. Indicator Elements on the Rear Side
You can see the following on the rear side of the storage subsystem:
– Status LEDs of the SAS expander unit
– Status LEDs of the power supply units
Status LEDs of the SAS Expander Unit3.3.1.
Figure 5: Status LEDs of the SAS expander unit
– Ready/Fault LED (green/amber)
– SAS-OUT Link/Fault LED (green/amber)
– SAS-IN Link/Fault LED (green/amber)
– UNIT ID LED (blue)
LED
Color
Status
Meaning
Ready/Fault
Green
ON
NormalOperation
Amber
ON
Error detected
SAS-OUT/ SAS-IN
Link/Fault
Green
ON
SAS link up
Amber
ON
Specifies the SAS cable for exchange
UNIT ID
Blue
Blinking
Specifies the expander location
Status LED of the Power Supply Units3.3.2.

3.3Indicator Elements on the Rear Side
16 Operating Manual
Figure 6: Status LED of the power supply units
– Status/FaultLED (green/amber)
LED
Color
Status
Meaning
Status/Fault
Green
ON
Normal operation
Blinking
Stand by
Amber
ON
Error detected
Enclosure ID Label3.3.3.
Figure 7: Enclosure ID label on the back side

3.Operating and Indicator Elements
17
Unit Numbering3.3.4.
3.3.4.1. Hard Disk Drives
Figure 8: Numbering of the hard disk drives
3.3.4.2. Power Supply Units and Expander Unit
Figure 9: Numbering of the power supply units and the expander unit

4.1Power Supply Units
18 Operating Manual
4.Power Supply
4.1. Power Supply Units
The storagesubsystem contains twopower supplyunits that guarantee the power supply to all the fitted
components. If one power supply unit fails, the system will carry on running (redundant power supply).
Figure 10: storage subsystem with two power supply units (#0, #1)
The power supply units are supplied with mains voltage via the supplied connectingleads.
The two power supply units can be connected directly to two different phases of the in-house circuit in
order to achieve phase redundancy (see section "Mains Connection”on page28).
Replacing a Power Supply Unit4.1.1.
CAUTION !
It is imperative that you read the chapter “Important Notes”onpage7 in this manual before you
carry out work on your storage subsystem.
If faults occur with the power supply unit, it could be necessary to replace a powersupplyunit.Information
about the relevanterror messages canbe found in the sections “Operating Status LEDs”on page 13 and
“Status LED of the Power Supply Units”onpage 15andin thechapter “Fault Clearing”on page 37.
CAUTION !
When replacing a power supply unit, do not leave it removed for longer than 5 minutes to prevent
temperature rise.
PSU#0
PSU#1

4.Power Supply
19
At the defective power supply unit, remove the AC cord clamp and remove the lead.
Figure 11: Ejector levers of a power supply unit
Release the latch of the ejector lever on both sides using both hands, and pull the unit out halfway.
Take the power supply unit out of the bay while supporting its bottom.
Pushthenew power supplyunit into theemptybayhalfwaywhilesupporting
its bottom.
Open the PSU ejector levers and insert the PSU.Then press the levers fully inward and confirm that
the latches are fastened.
Connect the lead to the power supply unit (see the section “Mains Connection”on page 28) and set the
AC cord clamp.
Connect the power cable to the mains (see the section “Mains Connection”on page 28).
Confirm that the Status/Fault LED of the unit shows green light.

5.1Handling Hard Disk Drives
20 Operating Manual
5.Hard Disk Drives
The storage subsystem can accommodate up to 24 2.5“ hard disk drives. If it is equipped, e.g. with 24 300
Gbyte hard disk drives, approximately 7.2 Tbyte hard disk memory is available as a maximum within one
housing.
The hard disk drives are built into a frame which allows defective hard disk drives to be replaced
(hot-plug) or new hard disk drives to be added during operation.
The “hot-plug“ function can only be performed together with a corresponding RAID configuration. Further
information about the RAID configuration or RAID level can be found in the disk array controller
documentation.
A hard disk drive mayonly be replaced if it is inactive (see description of the LEDs in the section “Status
LEDs of the Hard Disk Drives”on page 14) or has been marked as defective in the management tool.
The hot-plug procedure increases the availability of the system operation and guarantees a high degree
of data integrity and protection against failure.
5.1. Handling Hard Disk Drives
Hard disk drives are highly sensitive electromagnetic devices and must be handled with great care. It is
extremelylikelythat an incorrect handling willlead to a partially and/or total failure of the hard disk drives.
These failures willresult in data errors and to loss of data or to total destruction of the hard disk drive.
Please observe following rules, which will help to avoid the occurrence of this type of problems:
● Store and transport hard disk drives only within the limits stipulated in the specification.
● When transporting hard disk drives (even over short distances), always use the original packaging
(ESD labeling).
● Never expose a hard disk drive to a temperature shock. Avoid the formation of condensation inside and
on the outside of the hard disk drives. The hard disk drives may be exposed only to defined
temperature and climatic conditions.
● Hard disks must be put on antistatic mats with cushion. Never put an HDD on an other hard disk or
directly on metallic desks. Keep enough distance between hard disks to prevent the contact of two
disks at handling.
● Always put the hard disk drive down carefully, with its largest surface facing downwards, to avoid the
danger of tipping over.