Cisco MDS SanOS Troubleshooting Guide -- Overview - Revision history

Pravraj at 10:05, 30 November 2010

2010-11-30T10:05:26Z

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	'''Port Issues''' <br>		'''Port Issues''' <br>
-	~~Points to consider while~~ investigating port connectivity issues ~~are~~:	+	Answer these questions when investigating port connectivity issues:
-	* ~~Verify~~ correct media: copper or optical; single-mode (SM) or multimode (MM).	+	* Are you using the correct media: copper or optical; single-mode (SM) or multimode (MM)?
	* Is the media broken or damaged?		* Is the media broken or damaged?
	* Is the LED on the switch green?		* Is the LED on the switch green?

Pravraj: /* Primary Troubleshooting Flowchart */

2010-11-08T07:24:58Z

Primary Troubleshooting Flowchart

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	'''Figure 1-3 Troubleshooting Process Flowchart'''		'''Figure 1-3 Troubleshooting Process Flowchart'''
	<br>		<br>
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	[[Image:1-3.jpg]]		[[Image:1-3.jpg]]

Pravraj: /* Verifying SAN Element Registration */

2010-11-08T07:24:12Z

Verifying SAN Element Registration

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	Answer the following questions to verify that your end devices are registered to the fabric:		Answer the following questions to verify that your end devices are registered to the fabric:
	* Are the HBAs and subsystem ports successfully registered with the fabric name server?		* Are the HBAs and subsystem ports successfully registered with the fabric name server?
-	** In Device Manager, choose '''FC''' > '''Name S'''~~erver~~.	+	** In Device Manager, choose '''FC''' > '''Name Server'''.
	** In the CLI, use the '''show fcns''' command.		** In the CLI, use the '''show fcns''' command.
	* Does the correct pWWN for the HBAs and the storage subsystem ports show up on the correct port in the FLOGI database?		* Does the correct pWWN for the HBAs and the storage subsystem ports show up on the correct port in the FLOGI database?
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	* Does any single zone contain both devices?		* Does any single zone contain both devices?
	** In Fabric Manager, choose '''Zone''' > '''Edit Full Zone Database''' and select the active zone set (in bold) for the VSAN that contains the end devices. Verify that both devices are members of the same zone.		** In Fabric Manager, choose '''Zone''' > '''Edit Full Zone Database''' and select the active zone set (in bold) for the VSAN that contains the end devices. Verify that both devices are members of the same zone.
-	** From the CLI, use the '''show zoneset''' ~~active~~ command.	+	** From the CLI, use the '''show zoneset active''' command.

	===Fibre Channel End-to-End Connectivity===		===Fibre Channel End-to-End Connectivity===

Pravraj: /* Verifying Basic Connectivity */

2010-11-08T07:23:36Z

Verifying Basic Connectivity

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	Examine the FLOGI database on the two switches that are directly connected to the host HBA and subsystem ports. Also, verify that both ports (attached to MDS-A and MDS-B) are members of the same VSAN. If both devices are listed in the FCNS database, then ISLs are not an issue.		Examine the FLOGI database on the two switches that are directly connected to the host HBA and subsystem ports. Also, verify that both ports (attached to MDS-A and MDS-B) are members of the same VSAN. If both devices are listed in the FCNS database, then ISLs are not an issue.

-	In '''Fabric Manager''', choose '''Tools''' > '''Ping or Tools''' > '''Traceroute''' (or use the '''fcping''' or '''fctrace''' CLI commands) to verify connectivity. See the "FC Ping and FC Traceroute".	+	In '''Fabric Manager''', choose '''Tools''' > '''Ping or Tools''' > '''Traceroute''' (or use the '''fcping''' or '''fctrace''' CLI commands) to verify connectivity. See the "FC Ping and FC Traceroute" section.

	===Verifying SAN Element Registration===		===Verifying SAN Element Registration===

Pravraj: /* Gathering Information Using Common Fabric Manager Tools and CLI Commands */

2010-11-08T07:23:10Z

Gathering Information Using Common Fabric Manager Tools and CLI Commands

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	* View FLOGI information — In '''Fabric Manager''', choose '''Switches''' > '''Interfaces''' > '''FC Physical''' > '''FLOGI'''.		* View FLOGI information — In '''Fabric Manager''', choose '''Switches''' > '''Interfaces''' > '''FC Physical''' > '''FLOGI'''.
	* Analyze the results of merging zones — In '''Fabric Manager''', choose '''Zone''' > '''Merge Analysis'''.		* Analyze the results of merging zones — In '''Fabric Manager''', choose '''Zone''' > '''Merge Analysis'''.
-	* View traffic statistics — In '''Device Manager''', click the '''Device''' tab, select one or more ports, right-click on the selected port, and choose '''Monitoring''' from the pop-up menu.	+	* View traffic statistics — In '''Device Manager''', click the '''Device''' tab, select one or more ports, right-click the selected port, and choose '''Monitoring''' from the pop-up menu.

	Fabric Manager and Device Manager also provide the following tools to proactively monitor your fabric:		Fabric Manager and Device Manager also provide the following tools to proactively monitor your fabric:

Pravraj: /* Overview of the Troubleshooting Process */

2010-11-08T07:21:40Z

Overview of the Troubleshooting Process

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-	To identify the possible problems, you need to use a variety of tools and understand the overall storage environment. For this reason, this guide describes a number of general troubleshooting tools in Appendix B, "~~'''~~Troubleshooting Tools and Methodology~~''',~~" including those that are specific to the Cisco MDS 9000 Family. This chapter also provides a plan for investigating storage issues. See other chapters in this book for detailed explanations of specific issues.	+	To identify the possible problems, you need to use a variety of tools and understand the overall storage environment. For this reason, this guide describes a number of general troubleshooting tools in Appendix B, "Troubleshooting Tools and Methodology", including those that are specific to the Cisco MDS 9000 Family. This chapter also provides a plan for investigating storage issues. See other chapters in this book for detailed explanations of specific issues.

	==Best Practices==		==Best Practices==

Gkanmas: /* Contacting Customer Support */

2010-09-30T09:31:27Z

Contacting Customer Support

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	For more information on steps to take before calling Technical Support, see "Before Contacting Technical Support".		For more information on steps to take before calling Technical Support, see "Before Contacting Technical Support".
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		+	<center>'''Back to Main Page''': [[Cisco MDS SAN-OS Troubleshooting Guide]]
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Gkanmas: /* Overview of the Troubleshooting Process */

2010-09-30T09:31:08Z

Overview of the Troubleshooting Process

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		+	== Generating a PDF of this section==
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		+	[[Cisco MDS SAN-OS Troubleshooting Guide -- Overview PDF]]
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	== Overview of the Troubleshooting Process ==		== Overview of the Troubleshooting Process ==
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-	To identify the possible problems, you need to use a variety of tools and understand the overall storage environment. For this reason, this guide describes a number of general troubleshooting tools in Appendix B, "'''Troubleshooting Tools and Methodology'''," including those that are specific to the Cisco MDS 9000 Family. This chapter also provides a plan for investigating storage issues. See other chapters in this book for detailed explanations of specific issues.	+	To identify the possible problems, you need to use a variety of tools and understand the overall storage environment. For this reason, this guide describes a number of general troubleshooting tools in Appendix B, "'''Troubleshooting Tools and Methodology'''," including those that are specific to the Cisco MDS 9000 Family. This chapter also provides a plan for investigating storage issues. See other chapters in this book for detailed explanations of specific issues.

	==Best Practices==		==Best Practices==

Gkanmas: /* Generating a PDF of this section */

2010-09-30T09:30:38Z

Generating a PDF of this section

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-	~~[[Cisco MDS SAN-OS Troubleshooting Guide -- Overview PDF]]~~
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-	~~<center>'''Back to Main Page''': [[Cisco MDS SAN-OS Troubleshooting Guide]]~~
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Gkanmas: /* Generating a PDF of this section */

2010-09-30T09:30:14Z

Generating a PDF of this section

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	== Generating a PDF of this section==		== Generating a PDF of this section==

	[[Cisco MDS SAN-OS Troubleshooting Guide -- Overview PDF]]		[[Cisco MDS SAN-OS Troubleshooting Guide -- Overview PDF]]
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	<center>'''Back to Main Page''': [[Cisco MDS SAN-OS Troubleshooting Guide]]		<center>'''Back to Main Page''': [[Cisco MDS SAN-OS Troubleshooting Guide]]
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