Article Summary: |
This article provides information on the "PowerVault MD3000i - General Troubleshooting Steps for Communication Issues". |
Table of Contents:
- Discovery Fails
- Virtual Disks do not Appear in the Operating System (OS)
- Initiator Application Fails to Load
- Other Items
PING the MD3000i.
How-To:
- For Microsoft Windows® - Ping
- For General Linux® - Ping
If the PING is successful, perform the following steps.
NOTE: If these steps do not resolve the issue, please, contact Dell Technical support.
- Verify CHAP (Challenge Handshake Authentication Protocol) is set up correctly.
- Verify the Initiator is setup correctly.
- Verify iSNS (iSCSI Naming Service) is configured correctly.
- Verify unnamed discovery sessions are not disabled.
- Verify the Source and Destination addresses.
- Use the following links for more information on the steps above:
- Microsoft Windows 2008 R2® and 2012® - Installing and Configuring Microsoft iSCSI Initiator
- Red Hat™ 5 Linux® - Online Storage Reconfiguration Guide
- Red Hat™ 6 Linux ® - Storage Administration Guide
- Dell Support - PowerVault MD3000i Documentation - Guides for Setup, Installation, Clustering, Performance, and More
If the PING fails, perform the following steps.
NOTE: If these steps do not resolve the issue, please, contact Dell Technical support.
- Verify the hardware and software are supported.
Link: Dell PowerVault MD3000i Support Matrix
- Verify the MD3000i is powered on.
Link: Dell PowerVault MD3000i RAID Enclosure Hardware Owner’s Manual
- Verify ICMP is enabled.
- Link: Microsoft Windows 2003®
- Link: Microsoft Windows 2008®
- Link: Microsoft Windows 2012®
- Check the IP configuration of the host server ports and the iSCSI host port.
- Link: Microsoft Windows - ipconfig (useful command in command-line)
- Dell Support - PowerVault MD3000i Documentation - Guides for Setup, Installation, Clustering, Performance, and More
- Verify the MD3000i is cabled correctly.
- Link: Storage and Network Guide Version 4.4
- Link: PowerVault MD3000i Documentation - Guides for Setup, Installation, Clustering, Performance, and More
- Verify the NIC (Network Interface Card) Ports are set to Auto Negotiate.
- If is a Dell PowerEdge Server - find the NIC Manual on Dell's Support site.
- If it is another vendor's server or NIC, please engage that vendor.
- Verify the network card is installed properly.
- If is a Dell PowerEdge Server - find the NIC Manual on Dell's Support site.
- If it is another vendor's server or NIC, please engage that vendor.
- Verify the switch or router is not the issue (contact vendor for more information).
- If Virtual LANs (VLANs) are used on the network, verify they are set up correctly. Contact vendor for more information.
- If Jumbo Frames are used on the network, verify they are set up correctly. Contact vendor for more information.
Issue 2. |
Virtual Disks do not Appear in the Operating System (OS) |
NOTE: If these steps do not resolve the issue, please, contact Dell Technical support.
- Verify the host software was installed during the MD (Modular Disk) Storage Manager install.
Link: PowerVault MD3000i Documentation - Guides for Setup, Installation, Clustering, Performance, and More
- Attempt to log on to the iSCSI Initiator.
- If you are able to log in.
- Verify Host access is configured in MD Storage Manager.
- Verify the Virtual Disks have been created.
- Verify the virtual disks have been mapped to the host.
- In Windows®, Rescan the Disks, if the Virtual Disks do not appear, contact Dell Technical Support.
- In Linux®, run hot_add (at the command line type hot_add and press <Enter>.
- Verify and previous LUNs were properly removed from the operating system.
- If the Virtual Disks do not appear, contact Dell Technical Support.
- If you are unable to log in, PING the MD3000i.
- If the PING is successful, determine if the MD3000i is discovered.
- If it is not discovered use the Discovery Fails section to continue troubleshooting.
- If the MD3000i is discovered, allow any management operations to complete.
If the Virtual Disks still do not appear, contact Dell Technical Support.
- If the PING fails, perform the following steps.
If theses steps do not resolve the issue, contact Dell Technical Support.
- Verify the hardware and software are supported.
- Verify the MD3000i is powered on.
- Verify ICMP is enabled.
- Check the IP configuration of the host server ports and the iSCSI host port.
- Verify the MD3000i is cabled correctly.
- Verify the Ports are set to Auto Negotiate.
- Verify the network card is installed properly.
- Verify the switch or router is not the issue.
- If Virtual LANs (VLANs) are used on the network, verify they are set up correctly.
- If Jumbo Frames are used on the network, verify they are set up correctly.
NOTE: Use the section above for hyperlinks or web pages that can help in troubleshooting these items even further for line item.
Issue 3. |
Initiator Application Fails to Load |
- Verify the correct version of the Initiator is being used.
Link: Dell PowerVault MD3000i Support Matrix
- Verify the Host was rebooted after installing the Initiator.
- Reinstall the Initiator. If the application still fails to load, contact Dell Technical Support.
The iSCSI Service Fails to Start:
- Confirm the required patches and hotfixes are installed, these are documented in the MD3000i Support Matrix.
- Verify that the iscsi.conf file has been edited or that the sample file included on the MD3000i ResourceCD has been copied to the /etc/ directory.
(For Linux®)
See Dell's Support Site for the MD3000i ResourceCD.
- Review and note any kernel messages (/var/log/messages) for any errors that may be related to this issue. (For Linux®)
- If the iSCSI service still fails to start, contact Dell Technical Support.
- If this does not resolve the issue, try going through the top section again.
NOTE: If these steps do not resolve the issue, please, contact Dell Technical support.