Summary
Intermittently, the in-line verification process of Advanced Client jobs hangs or runs slowly.
Symptoms
From time to time, the in-line verification process of Advanced Client hangs or runs very slowly. One of the possible reasons is a teaming NIC configuration, another or fastpath setup on a destination filer (7Mode only). In one specific case, the primary DPX client node attempted to run a job with a teaming NIC configuration and the verification process took about 5 hours.
You can identify this problem using the primary DPX client node's mapper logs (*.mpr) files, which are located in the <DPX installation directory>/logs/ directory. Should this problem occur, the mapper logs would include the following message:
Thu Jan 31 09:00:50 2008 SNBMPR3066D 5000: Processing Command: TOK_SNAP_VERIFY_LUN on socket(7)
Thu Jan 31 14:04:20 2008 SNBMPR3066D 5000: compare_sums() comparing (17) elements
Thu Jan 31 14:04:20 2008 SNBMPR3066D 5000: compare_sums() comparing(68) bytes
Resolution
To resolve this issue:
- Determine if the DPX client node's NIC configuration is teaming. If not, the issue is not related to this article and should be addressed using other methods.
- If your destination filer is 7 mode - verify IP configuration of the destination filer node by running the below command on the filer:
options ip.fastpath.enable
- If the output of the options command is "on", run the following command:
options ip.fastpath.enable off
If not the output of the options command is not on, the issue is not related to this article and should be addressed using other methods.