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Switch services

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Domain ID, principal priority, and domain ID lock The following switch configuration settings affect multiple switch fabrics: • Domain ID • Principal priority • Domain ID lock The domain ID is a unique number from 1-239 that identifies each switch in a fabric. The principal priority is a number (1-255) that determines the principal switch which manages domain ID assignments for the fabric. The switch with the highest principal priority (1 is high, 255 is low) becomes the principal switch. If the principal priority is the same for all switches in a fabric, the switch with the lowest Worldwide Name (WWN) becomes the principal switch. The domain ID lock allows (False) or prevents (True) the reassignment of the domain ID on that switch. Switches come from the factory with the domain ID set to 1, the domain ID lock set to False, and the principal priority set to 254. For information about changing the default domain ID, domain ID lock, and principal priority parameters, see the set config switch command in the HP StorageWorks 8/20q Fibre Channel Switch command line interface guide. If you connect a new switch to an existing fabric with its domain ID unlocked, and a domain ID conflict occurs, the new switch will isolate as a separate fabric. You can remedy this by resetting the new switch or taking it offline then putting it back online. The principal switch will reassign the domain ID and the switch will join the fabric. NOTE: Domain ID reassignment is not reflected in zoning that is defined by domain ID/port number pair or Fibre Channel address. You must reconfigure zones that are affected by domain ID reassignment. To prevent zoning definitions from becoming invalid under these conditions, lock the domain IDs. Domain ID reassignment has no effect on zone members defined by WWN. Common topologies For additional information about Storage Area Network (SAN) connectivity, see the SAN design reference guide available at the HP website: http://www.hp.com/go/SANdesignguide. Switch services You can configure your switch to suit the demands of your environment by enabling or disabling a variety of switch services. Familiarize yourself with the following switch services and determine which ones you need. • Telnet: Provides for the management of the switch over a Telnet connection. Disabling this service is not recommended. The default is enabled. • Secure Shell (SSH): Provides for secure remote connections to the switch using SSH. Your workstation must also use an SSH client. The default is disabled. • GUI Management: Provides for out-of-band management of the switch with Simple SAN Connection Manager, QuickTools, SNMP, and SMI-S. If this service is disabled, the switch can only be managed inband or through the serial port. The default is enabled. • Inband Management: Provides for the management of the switch over an inter-switch link using Simple SAN Connection Manager, QuickTools, SNMP, or management server. If you disable inband management, you can no longer communicate with that switch by means other than an Ethernet or serial connection. The default is enabled. 22

Section	Page
Contents	3
About this guide	7
Intended audience	7
Related documentation	7
Document conventions and symbols	8
Table 1 Document conventions	8
Rack stability	9
HP technical support	9
Customer self repair	9
Product warranties	9
Subscription service	9
HP web sites	10
Documentation feedback	10
General description	11
Figure 1 8/20q Fibre Channel Switch	11
Switch LEDs and controls	12
Figure 2 Switch LEDs and controls	12
Input power LED (green)	12
Heartbeat LED (green)	12
System fault LED (amber)	12
Maintenance button	13
Resetting a switch	13
Placing the switch in maintenance mode	13
Fibre Channel ports	14
Figure 3 Fibre Channel ports	14
Port LEDs	14
Figure 4 Port LEDs	14
Port Logged-in LED (green)	14
Port Activity LED (green)	14
Transceivers	15
Port types	15
Ethernet port	15
Figure 5 Ethernet port	15
Serial port	16
Figure 6 Serial port and pin identification	16
Table 2 Serial port pin identification	16
Power supply and fans	16
Switch management	17
QuickTools web applet	17
Simple SAN Connection Manager	17
Command line interface	17
Simple Network Management Protocol	17
Storage Management Initiative-Specification (SMI-S)	17
File transfer protocols	17
Planning	19
Devices	19
Device access	19
Table 3 Zoning database limits	20
Performance	20
Distance	20
Bandwidth	20
Latency	21
Table 4 Port-to-port latency	21
Feature licenses	21
Multiple switch fabrics	21
Optimizing device performance	21
Domain ID, principal priority, and domain ID lock	22
Common topologies	22
Switch services	22
Fabric security	23
Connection security	24
User account security	24
Port binding	25
Device security	25
Fabric management	26
Installation	27
Site requirements	27
Management Station and Workstation requirements	27
Table 5 Management station requirements for Simple SAN Connection Manager	27
Table 6 Workstation requirements for QuickTools	28
Switch power requirements	28
Environmental conditions	28
Installing a switch	28
Mount the switch	29
Before you begin	29
Collect the required items	30
Verify the kit contents	30
Table 7 8/20q Fibre Channel Switch rack mount kit hardware	30
Rack the switch	31
Figure 7 Attaching the rails to the switch	31
Figure 8 Installing the rear mounting brackets	31
Figure 9 Installing the switch and rail assembly	31
Figure 10 Fastening the rail to the front of the rack	32
Figure 11 Fastening the rail to the rear mounting bracket	32
Figure 12 Installing the filler panel	32
Install the transceivers	33
Configure the workstation	33
Configuring the workstation IP address for Ethernet connections	33
Configuring the workstation serial port	33
Apply power to the switch	34
Connect the management station or workstation to the switch	35
Figure 13 Management station and workstation cable connections	35
Configure the switch	35
Simple SAN Connection Manager switch configuration	35
QuickTools switch configuration	35
CLI switch configuration	36
Cable devices to the switch	36
Installing firmware	36
Using QuickTools to install firmware	37
Using the CLI to install firmware	37
One-step firmware installation	38
Custom firmware installation	39
Adding a switch to an existing fabric	39
Installing feature license keys	40
Diagnostics and troubleshooting	41
Switch diagnostics	41
Figure 14 Switch LEDs	41
Input power LED is extinguished	41
System fault LED is illuminated	42
Power-On self test diagnostics	42
Heartbeat LED blink patterns	42
Internal firmware failure blink pattern	42
Fatal POST error blink pattern	43
Configuration file system error blink pattern	43
Over-temperature blink pattern	43
Logged-in LED indications	44
Figure 15 Logged-in LED	44
E_Port isolation	44
Excessive port errors	45
Recovering a switch using maintenance mode	46
Exiting the maintenance menu (option 0)	47
Unpacking a firmware image file in maintenance mode (option 1)	47
Resetting the network configuration in maintenance mode (option 2)	47
Resetting user accounts in maintenance mode (option 3)	47
Copying log files in maintenance mode (option 4)	48
Removing the switch configuration in maintenance mode (option 5)	48
Remaking the file system in maintenance mode (option 6)	48
Resetting the switch in maintenance mode (option 7)	48
Updating the boot loader in maintenance mode (option 8)	48
Regulatory compliance and safety	49
Regulatory compliance	49
Federal Communications Commission notice for Class A equipment	49
Cables	49
Laser device	49
Laser safety warning	49
Certification and classification information	50
Laser product label	50
Figure 16 Class 1 laser product label	50
International notices and statements	50
Canadian notice (avis Canadien)	50
European Union regulatory notice	51
Japanese notice	51
Korean notice	51
Taiwan notice	51
Electrostatic discharge	53
How to prevent electrostatic discharge	53
Grounding methods	53
Technical specifications	55
General specifications	55
Table 8 General specifications	55
Maintainability features	56
Table 9 Maintainability features	56
Fabric management specifications	57
Table 10 Fabric management specifications	57
Weight and physical dimensions	57
Table 11 Switch physical dimensions	57
Electrical specifications	57
Table 12 Electrical specifications	57
Environmental requirements	58
Table 13 Environmental requirements	58
Factory configuration defaults	59
Factory switch configuration	59
Table 14 Switch configuration defaults	59
Factory port configuration	60
Table 15 Port configuration defaults	60
Factory port threshold alarm configuration	61
Table 16 Port threshold alarm configuration defaults	61
Factory zoning configuration	61
Table 17 Zoning configuration defaults	61
Factory SNMP configuration	62
Table 18 SNMP configuration defaults	62
Factory switch services configuration	62
Table 19 Services configuration defaults	62
Factory system configuration	63
Table 20 System configuration defaults	63
Factory RADIUS configuration	63
Table 21 RADIUS configuration defaults	63
Factory security configuration	64
Table 22 Security configuration defaults	64
Factory Call Home configuration	64
Table 23 Call Home service configuration defaults	64
Glossary	65
Index	69
Numerics	69
A	69
B	69
C	69
D	69
E	69
F	69
G	70
H	70
I	70
L	70
M	70
N	70
O	70
P	70
Q	70
R	71
S	71
T	71
U	71
V	71
W	71

Match case Limit results 1 per page

Domain ID, principal priority, and domain ID lock

The following switch configuration settings affect multiple switch fabrics:

•

Domain ID

•

Principal priority

•

Domain ID lock

The domain ID is a unique number from 1–239 that identifies each switch in a fabric. The principal priority

is a number (1–255) that determines the principal switch which manages domain ID assignments for the

fabric. The switch with the highest principal priority (1 is high, 255 is low) becomes the principal switch. If

the principal priority is the same for all switches in a fabric, the switch with the lowest Worldwide Name

(WWN) becomes the principal switch.

The domain ID lock allows (False) or prevents (True) the reassignment of the domain ID on that switch.

Switches come from the factory with the domain ID set to 1, the domain ID lock set to False, and the

principal priority set to 254. For information about changing the default domain ID, domain ID lock, and

principal priority parameters, see the

set config switch

command in the

HP StorageWorks 8/20q

Fibre Channel Switch command line interface guide

If you connect a new switch to an existing fabric with its domain ID unlocked, and a domain ID conflict

occurs, the new switch will isolate as a separate fabric. You can remedy this by resetting the new switch or

taking it offline then putting it back online. The principal switch will reassign the domain ID and the switch

will join the fabric.

NOTE:

Domain ID reassignment is not reflected in zoning that is defined by domain ID/port number pair

or Fibre Channel address. You must reconfigure zones that are affected by domain ID reassignment. To

prevent zoning definitions from becoming invalid under these conditions, lock the domain IDs. Domain ID

reassignment has no effect on zone members defined by WWN.

Common topologies

For additional information about Storage Area Network (SAN) connectivity, see the

SAN design reference

guide

available at the HP website:

http://www.hp.com/go/SANdesignguide

Switch services

You can configure your switch to suit the demands of your environment by enabling or disabling a variety

of switch services. Familiarize yourself with the following switch services and determine which ones you

need.

•

Telnet

: Provides for the management of the switch over a Telnet connection. Disabling this service is not

recommended. The default is enabled.

•

Secure Shell (SSH)

: Provides for secure remote connections to the switch using SSH. Your workstation

must also use an SSH client. The default is disabled.

•

GUI Management

: Provides for out-of-band management of the switch with Simple SAN Connection

Manager, QuickTools, SNMP, and SMI-S. If this service is disabled, the switch can only be managed

inband or through the serial port. The default is enabled.

•

Inband Management

: Provides for the management of the switch over an inter-switch link using Simple

SAN Connection Manager, QuickTools, SNMP, or management server. If you disable inband

management, you can no longer communicate with that switch by means other than an Ethernet or

serial connection. The default is enabled.