Overview

The DXi troubleshooting methodologies provide Service/Support with a step-by-step approach to identifying root cause and resolution to issues without requiring the individual to become an expert in a particular DXi function. Methodologies lead you through  the basic troubleshooting process of Investigation, Analysis, and Implementation as you learned about in the Troubleshooting Theory and Strategy topic. For more detailed information on specific topics, go to the DXi-Series page and look for a Hot Topic of interest or a recorded presentation. Also see the DXi Log Reading Basics topic for general principles of collecting, reading, and interpreting DXi logs.

 

The structure for DXi methodologies can include content for the following:

 

• Main page that includes this information (View a Template for the Main Page of a Methodology page that you can copy)
  • Overview describing purpose of the methodology
  • SR Info is the information typically seen in an SR for a specific area
  • Product and DXi software version that the problem is related to
  • Problem Description
• Installation Issues one page – log examples on separate page
• Configuration Issues on one page – log examples on separate page
• Operational Issues on one page – log examples on separate page
• Separate scenarios on their own pages including log output examples

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Current Methodologies

Log Reading and Gathering Topics

• How to Audit NetApp/LSI CollectLog Data for Impending Drive Failures (DRAFT)
• How to Convert Epoc Time to a Human Readable Format
• CDB Structure Explained
• DXi Application Logging Explained
• Tracking Down Disk Errors in the Collect Log
• Log Locations on a Live 1.5 system
• A Better Way to FTP

Product or Presentation-Specific Issues

• Problems Joining Active Directory (DRAFT)
• NAS-Related Performance Issues
• NAS NFS Share: Applying No_Root_Squash and Anonymous uid/gid=0 Settings
• VTL: How to Identify a Cartridge with Bad cmd File 
• Clearing Admin Alerts from the Linter Database
• Clearing Out the Linter Database RAS Email Queue
• OST: Deleting an LSU with Data - Force Option Not Available
• OST: NBU Backup or Duplication Jobs Failing (Error 84)
• OST: Image & Metadata Layout / LSU Upgrade & Reformat Process Guidelines
• Opdup in a Giant Turtle Shell
• Hard Hang or Kdump: Identifying a Bus Fatal Error from a Collect Log for DXi8500

Process-Related Issues

• Space Reclamation Fails (DRAFT)
• PTT/NDMP Issues in NetBackup (DRAFT)
• 100% Capacity Issues
• Writing Sybase Dumps to a DXi Appliance
• Collecting Data on Core Dumps for Analysis and SES Escalation
• Kdump: Identifying a Kernel panic/oops/crash then Kdump: Gather with .bz2 Option
• Replication / Space Reclamation: Target DXi is Filling Up - Replication is Enabled, Not Scheduled/Triggered Case 1 
• Replication / Space Reclamation: Target DXi is Filling Up - Replication is Enabled, Not Scheduled/Triggered Case 2  
• Space Reclamation: BPGC Will Not Reclaim if Reference Count is in Doubt
• Space Management: How it Works and How to Verify Settings In Seer Conf File
• Replication: Using the Trigger Based Replication Queue to Determine if Replication is Working
• Path-To-Tape Failure in NetBackup Environment with SCSI Reservation Conflict Errors (DRAFT)
• Blockpool: How to check truncation and dedupe queues on DXi 1.x (DRAFT)
• Open Manage Does Not Start Because Semaphore Count Reached (DRAFT)
• Disk Usage Numbers In DXi 2.2.1 Are Confusing
• Blockpool: Corrupt Clusters But No Corrupt Blobs
• How to Use Space Reclamation In Legacy Mode on Busy Systems
• Core files: How trimcores from cron.hourly handles core files
• Booting into Single-User Mode to Reset Root Password (DRAFT)
• How to Identify Blobs Present and Absent Between the Replication Partners (DRAFT)
• Space Reclamation: Blob Reference Count vs Blocklet Reference Count
• Recovering from Data Cluster Corruption (DRAFT)
• Importing/Exporting DXi postgres databases (DRAFT)
• NTP Server and DXi Time Synchronization Troubleshooting

Hardware-Related Issues

• Hardware Issues
• Verifying that OpenManage is Running
• Duplicate Volume Found During Hardware Expansion
• Deleting an LSI/3ware "Ghost" Raid Unit After a Controller Malfunction
• Hardware: How to Identify and Interpret SCSI Sense Codes on a DXi Platform
• DO NOT Use the DXi RAID CD to Recover a Failed System in the Field
• Buffer ECC error reported on 3ware RAID Controller 
• Accessing NetApp Controllers
• Hardware: 3ware log Guide for analysis and identification of events

SNFS-Related Issues

• SNFS: File System Not Coming Up Due To Numerous Failures
• SNFS: Fragmentation on the DXi 
• SNFS: DXi Unable to Start Due to Configuration Changes 
• SNFS: Metadata is in a "Low Space" or "Full" Condition
• SNFS: Identifying SNFS File Systems on the DXi

Q-Cloud-Related Issues

• OST: Using opduptranslate to Translate IP Addresses

Network-Related Issues

• Network-Performance: Outbound Network Performance Affected by Socket Buffer, TCP Delay or TCP Window Size
• Wireshark: How to Capture, Filter and Inspect Packets
• How to Investigate SNMP Issues on DXi (DRAFT)

Linter Database-Related Issues

• Linter: Enabling Debug for the Linter Database
• Linter: TestLinterDB.pl Failures

Bugzilla-Related Topics

• Bugzilla: Using the Advanced Search Option for DXi Products
• Bugzilla: Providing Additional Details With Existing Defect PTRs for Engineering

DXi GUI and DXi Advanced Reporting (DART) Issues

• GUI/DART: How to Fix GUI and DART Statistics When ‘Before Reduction Size’ Is Smaller Than ‘After Reduction Size’
• GUI: Replication Status Values and How to Update Them
• GUI: Out of Disk Space - "System Busy, try again later or contact tech support" (DRAFT)

Customer Ecosystem-Related Issues

• SYSCLI: Scheduling Tasks on the DXi using cliadmin Account
• AIX Does Not Detect the VTL / Library after Installing Drivers

DXi V-Series-Related Issues

• How to Identify ESX Disk Issues that Affect DXi V1000 Performance 
• DXi V-Series: System Hung During Startup - Filesystem in Read-Only Mode (DRAFT)

VMware Topics

• Collecting ESX Server Logs Using the GUI 
• Collecting ESX Server Logs Using the CLI 
• Collecting ESX Server Logs from vCenter
• Collecting an ESX Performance Snapshot

 

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 Ideas for a new methodology? Go here and tell us