Dell PowerVault TL4000 - Manual (Page 40)

Troubleshooting
Page 38 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C
10. Troubleshooting
10.1 Network Problems
The iSCSI bridge is not visible on the Network.
Under normal operation you should be able to “ping” the network address of the bridge and receive a
response. If this fails, run through the following check list to help you identify the problem.
• Ensure that the bridge is properly plugged into the library and that the library is powered on. Make
sure that the power LED on the bridge is illuminated.
• Ensure that the Ethernet cable is plugged in at both ends.
• Note the status of the LEDs positioned within the Ethernet connector – make sure that the “Link
present” LED is illuminated - If not, check with your Network Administrator.
• If you are using a bridge with two Ethernet ports and only one network cable, try using the other
network address and/or the other network port.
• Ensure you are using the correct network address and subnet-mask.
• Scan the network using a LAN-Scan utility (available via internet) to find all the bridges connected to
the network in case the network address is different from the expected.
• If none of the above resolves your problem, then after consulting your Network Administrator, please
contact support.
10.2 Device related Problems
The iSCSI bridge is visible on the Network but no devices appear on the host machine.
Once the bridge has booted and the target devices have finished initializing, these devices should be
available on the host machine. After checking that you have correctly configured the iSCSI initiator, run
through the following checklist to help you identify the problem.
• Ensure that the library and the tape devices are powered on and ready – some libraries can take 5
minutes or more before they are ready and appear on the bridge. (The power up status of libraries is
usually displayed on the front panel).
• Ensure that the cable between the bridge and the tape drives in the library are connected.
• Connect to the bridge via the GUI interface and check that devices are present in the Device
management window and are enabled – you will need to drill down each device entry to see this
option.