Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting

Asset ID:	1-75-1398582.1
Update Date:	2012-05-30
Keywords:

Solution Type Troubleshooting Sure

Solution 1398582.1 : Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting - Identifying the Problem

Applies to:

Sun Storage 7210 Unified Storage System - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 7310 Unified Storage System - Version Not Applicable to Not Applicable [Release N/A]
Sun ZFS Storage 7120 - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 7410 Unified Storage System - Version Not Applicable to Not Applicable [Release N/A]
Sun ZFS Storage 7420 - Version Not Applicable to Not Applicable [Release N/A]
7000 Appliance OS (Fishworks)

Purpose

This documents helps you identify iSCSI related problems on the Oracle ZFS Storage 7000 series Appliance (ZFSSA).

The following document does not cover generic network problems.

To discuss this information further with Oracle experts and industry peers, we encourage you to review, join or start a discussion in the My Oracle Support Community - 7000 Series ZFS Appliances

Troubleshooting Steps

When you experience iSCSI problems, there are three types of problem areas.
The types of problems are:

Performance Issues
Boot Issues
Connectivity Issues

You should gather generic information and all the information instructed in each of the troubleshooting documents.
For details on what information is required see

<Document 1400791.1> Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting - Collecting Data

Describing the Problems:

Performance Issues

iSCSI data access is slow.
Data access was faster before.

These descriptions are indication of performance problems.
Refer to the following document for troubleshooting performance related problems.

<Document 1331769.1> Sun Storage 7000 Unified Storage System: Performance Troubleshooting Resolution Path.

Boot Issues

- Cannot boot from iSCSI LUN on ZFSSA any more.
- Client's Boot disk cannot be accessed.

These are description of boot issues. Please refer to your client's vendor documentation to help identify if the problem resides on the initiator side.

If the iSCSI initiator operating system is Oracle Solaris these documents may help:

<Document TBD:> Oracle Solaris - Solaris 10 Known iSCSI Boot Issues.
The RPE team has not yet published official documentation for Solaris 10u10 support of iSCSI boot.

this needs to be added in future.
<Document: TBD:> Oracle Solaris 11 iSCSI: boot issues.
I welcome any suggestions on Solaris 11 iSCSI boot issues.

Connectivity Issues

Unable to access iSCSI data any more.
Unable to see ZFSSA LUNs that were previously available.

These are the description of connectivity issues.
Refer to the following document for determining possible causes of these connectivity issues.

<Document 1401425.1> Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting - Cause Determination

Click here to return to <Document 1398581.1> Sun Storage 7000 Unified Storage System: How to Troubleshoot iSCSI problems.

References

<NOTE:1400791.1> - Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting - Collecting Data
<NOTE:1331769.1> - Sun Storage 7000 Unified Storage System: How to Troubleshoot Performance Issues
<NOTE:1401425.1> - Sun Storage 7000 Unified Storage System: iSCSI Troubleshooting - Cause Determination
<NOTE:1398581.1> - Sun Storage 7000 Unified Storage System: How to Troubleshoot iSCSI Problems

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