Cisco MDS SanOS Troubleshooting Guide -- Troubleshooting SANTap - Revision history

Pravraj: /* Common Mismatch Problems */

2010-11-08T08:08:56Z

Common Mismatch Problems

← Older revision		Revision as of 08:08, 8 November 2010
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	Version mismatch between the Supervisor and the SSI image.		Version mismatch between the Supervisor and the SSI image.
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-	The version of the ~~Supervisor~~ and the SSI image are not compatible.	+	The version of the supervisor and the SSI image are not compatible.
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Pravraj: /* Host Login Problems */

2010-11-08T08:07:34Z

Host Login Problems

← Older revision		Revision as of 08:07, 8 November 2010
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	4. Enter the following debug commands:		4. Enter the following debug commands:

-	: a. '''debug vsd vfc-felogin'''	+	:* '''debug vsd vfc-felogin'''

-	: b. '''debug partner 0x92810000 d1'''	+	:* '''debug partner 0x92810000 d1'''

-	: c. '''debug partner 0x92810000 d2'''	+	:* '''debug partner 0x92810000 d2'''

	5. Review the logs to determine the problem, and then take the appropriate corrective action.		5. Review the logs to determine the problem, and then take the appropriate corrective action.

Pravraj: /* Common Mismatch Problems */

2010-09-28T10:53:25Z

Common Mismatch Problems

← Older revision		Revision as of 10:53, 28 September 2010
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	* Too many ITLs per DPP		* Too many ITLs per DPP
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-	When replication is enabled, AVT LUNs are created, and ~~that~~ can increase the ITL count over the limit. (See "Limitations" section.)	+	When replication is enabled, AVT LUNs are created, and which can increase the ITL count over the limit. (See the "Limitations" section.)

	If Reservation Support is not enabled on the RPA:		If Reservation Support is not enabled on the RPA:
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	* The appliance completes recovery of these LUNs and then deletes them before creating more.		* The appliance completes recovery of these LUNs and then deletes them before creating more.

-	* ~~This behavior does not significantly increase the~~ ITL count.	+	* The ITL count is not significantly increased.

	If Reservation Support is enabled on the RPA:		If Reservation Support is enabled on the RPA:

Pravraj: /* Common Mismatch Problems */

2010-09-28T10:51:33Z

Common Mismatch Problems

← Older revision		Revision as of 10:51, 28 September 2010
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	Problems are often caused by mismatching component versions, or using devices that are not supported by the interoperability matrix.		Problems are often caused by mismatching component versions, or using devices that are not supported by the interoperability matrix.

-	~~The following~~ lists common mismatch situations:	+	Table 23-3 lists common mismatch situations:

	<div align="left">		<div align="left">

	{\| id="wp162237table162235" width="80%" border="1" cellpadding="3"		{\| id="wp162237table162235" width="80%" border="1" cellpadding="3"
-	\|+ Table 23-3 Common SANTap Mismatch Problems<span>'''''<font color="Black"> </font>'''''</span>	+	\|+ '''Table 23-3 Common SANTap Mismatch Problems'''<span>'''''<font color="Black"> </font>'''''</span>
	\|- align="left" valign="bottom"		\|- align="left" valign="bottom"
	! scope="col" \|		! scope="col" \|
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	Version mismatch between the Supervisor and the SSI image.		Version mismatch between the Supervisor and the SSI image.
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-	The version of the ~~Sup~~ and the SSI image are not compatible.	+	The version of the Supervisor and the SSI image are not compatible.
	\|- align="left" valign="top"		\|- align="left" valign="top"
	\|		\|

Pravraj: /* ITL Problems */

2010-09-28T10:50:09Z

ITL Problems

← Older revision		Revision as of 10:50, 28 September 2010
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	=== ITL Problems ===		=== ITL Problems ===

-	An ITL problem may occur if the number of ITLs exceeds the limitations for the version of Cisco SAN-OS and SSI in use. For specific ITL limitations, see the "Limitations" section	+	An ITL problem may occur if the number of ITLs exceeds the limitations for the version of Cisco SAN-OS and SSI in use. For specific ITL limitations, see the "Limitations" section.

	To diagnose and resolve ITL problems, follow these steps:		To diagnose and resolve ITL problems, follow these steps:
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	----		----

-	1. Use the show <span style="font-style: normal">'''<font color="Black">isapi dpp 4 queue</font>'''</span> command to display DPP queue information.	+	1. Use the '''show''' <span style="font-style: normal">'''<font color="Black">isapi dpp 4 queue</font>'''</span> command to display DPP queue information.

	2. Verify that the number of ITLs on a DPP is within the limitations for the version of Cisco SAN-OS and SSI in use. Use the '''show isapi dpp 4 queue incl LUN''' and '''show isapi dpp 4 queue count''' commands.		2. Verify that the number of ITLs on a DPP is within the limitations for the version of Cisco SAN-OS and SSI in use. Use the '''show isapi dpp 4 queue incl LUN''' and '''show isapi dpp 4 queue count''' commands.

-	3. Verify that the number of ITLs on an SSM is within the limitations for the version of Cisco SAN-OS and SSI in use. ~~Issue~~ the '''show isapi dpp all queue''' command, using the '''incl LUN''' and '''count''' parameters.	+	3. Verify that the number of ITLs on an SSM is within the limitations for the version of Cisco SAN-OS and SSI in use. Enter the '''show isapi dpp all queue''' command, using the '''incl LUN''' and '''count''' parameters.

	----		----

Pravraj: /* Host Login Problems */

2010-09-28T10:49:26Z

Host Login Problems

← Older revision		Revision as of 10:49, 28 September 2010
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	3. Enable logging on the appropriate SSM module.		3. Enable logging on the appropriate SSM module.

-	4. ~~Issue~~ the following debug commands:	+	4. Enter the following debug commands:

-	: a. debug vsd vfc-felogin	+	: a. '''debug vsd vfc-felogin'''

-	: b. debug partner 0x92810000 d1	+	: b. '''debug partner 0x92810000 d1'''

-	: c. debug partner 0x92810000 d2	+	: c. '''debug partner 0x92810000 d2'''

-	5. Review the logs to determine the problem and then take the appropriate corrective action.	+	5. Review the logs to determine the problem, and then take the appropriate corrective action.

	----		----

Pravraj: /* Messages, Logs and Databases */

2010-09-28T10:48:50Z

Messages, Logs and Databases

← Older revision		Revision as of 10:48, 28 September 2010
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	* '''show santap vttbl dvt''' ''dvt-pwwn''		* '''show santap vttbl dvt''' ''dvt-pwwn''

-	=== Messages, Logs and Databases ===	+	=== Messages, Logs, and Databases ===

-	The following log files and databases can provide helpful information when troubleshooting SANTap problems.	+	The following log files and databases can provide helpful information when troubleshooting SANTap problems:

	* Look for SSM_CRIT in Sup syslog messages.		* Look for SSM_CRIT in Sup syslog messages.
-	* SANTap logs are available ~~via~~ the '''show isapi tech-support''' CLI command. Search for the strings "Error" and "failed" or "failure."	+	* SANTap logs are available with the '''show isapi tech-support''' CLI command. Search for the strings "Error" and "failed" or "failure."
-	* Review FCNS and FLOGI databases, using the '''show fcns''' and '''show flogi''' CLI commands.	+	* Review the FCNS and FLOGI databases using the '''show fcns''' and '''show flogi''' CLI commands.

	== SANTap Issues ==		== SANTap Issues ==

Pravraj: /* Initial Troubleshooting Checklist */

2010-09-28T10:47:57Z

Initial Troubleshooting Checklist

← Older revision		Revision as of 10:47, 28 September 2010
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	\|- align="left" valign="bottom"		\|- align="left" valign="bottom"
	! scope="col" \|		! scope="col" \|
-	<div class="pCH1_CellHead1"> Checklist<span style="font-style: normal">'''<font color="Black">Â </font>'''</span></div>	+	<div class="pCH1_CellHead1"> Checklist<span style="font-style: normal">'''<font color="Black"></font>'''</span></div>
	! scope="col" \|		! scope="col" \|
	<div class="pCH1_CellHead1"> Check off </div>		<div class="pCH1_CellHead1"> Check off </div>

Pravraj: /* Limitations */

2010-09-28T10:47:31Z

Limitations

← Older revision		Revision as of 10:47, 28 September 2010
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	{\| id="wp156431table156348" width="80%" border="1" cellpadding="3"		{\| id="wp156431table156348" width="80%" border="1" cellpadding="3"
-	\|+ Table 23-2 SANTap Attribute Limitations<span>'''''<font color="Black"></font>'''''</span>	+	\|+ '''Table 23-2 SANTap Attribute Limitations'''<span>'''''<font color="Black"></font>'''''</span>
	\|- align="left" valign="bottom"		\|- align="left" valign="bottom"
	! scope="col" \|		! scope="col" \|

Pravraj: /* Definitions */

2010-09-28T10:47:02Z

Definitions

← Older revision		Revision as of 10:47, 28 September 2010
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	== Definitions ==		== Definitions ==

-	Table 23-~~1includes~~ brief definitions of some of the common SANTap acronyms and terms.	+	Table 23-1 includes brief definitions of some of the common SANTap acronyms and terms.

	<div align="left">		<div align="left">

	{\| id="wp155225table155223" width="80%" border="1" cellpadding="3"		{\| id="wp155225table155223" width="80%" border="1" cellpadding="3"
-	\|+ Table 23-1 SANTap Acronyms<span>'''''<font color="Black"></font>'''''</span>	+	\|+ '''Table 23-1 SANTap Acronyms'''<span>'''''<font color="Black"></font>'''''</span>
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	! scope="col" \|		! scope="col" \|
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	Virtual initiator. SANTap creates 9 VIs in the appliance and target VSANs. In the appliance, VIs are used to send responses to SANTap CP requests and also to send copies of WRITE I/Os. In the target, VIs are used when the appliance is down and one of the SANTap recovery tools (ARL, PWL-BPR) is enabled.		Virtual initiator. SANTap creates 9 VIs in the appliance and target VSANs. In the appliance, VIs are used to send responses to SANTap CP requests and also to send copies of WRITE I/Os. In the target, VIs are used when the appliance is down and one of the SANTap recovery tools (ARL, PWL-BPR) is enabled.
-		+	----
-	{{Note \|If the appliance implementation ~~chooses~~ not to use these recovery tools, the VIs are not used.}}	+	{{Note \|If the appliance implementation does not use these recovery tools, the VIs are not used.}}
		+	----
	\|}		\|}