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Title
NDMP Backups fail after upgrading to fluids 6.0.110054 -
Description
After upgrading to FluidFS backups fail with “Unknown error -1” in binary log.
Error 2017/09/20 19:33:05 100 Data Plugin NV-SC-WC-01 Failed to start backup: Unknown error -1
When multiple volumes are run in the same backup, sub jobs are created and most of the sub jobs fail.
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Cause
Requires FluidFS patch 6.0.120012 (or higher builds)
Patch includes NDMP fix below
NDMP-Server fix, which allows for concurrent NDMP DMA requests to be handled correctly.
Releases earlier than v6.0.120012 may suffer from intermittent NDMP response, when multiple DMA requests are received and the total count of NDMP requests per NAS-node is greater than 1.
The concurrent NDMP request issue is not limited to FluidFS combined with NetVault.
There are other backup-applications which experience similar "session-hanging" behaviour when combined with FluidFS pre-v6.0.120012.
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Resolution
Upgrade FluidFS to 6.0.120012
Because the 6.0.120012 release is "deviation only" and not published on the Dell EMC FTP site.
To obtain the patch open service request with FluidFS support and request upgrade