On 09/23/2015 02:38 AM, Exec Unerd wrote: > I made a typo when setting failnode/servicenode parameters, but I can't > figure out how to remove the failnode parameter entirely > > I can change the failnode NIDs, but I can't figure out how to completely > remove "failnode" from the system. > > Does anyone have an example of a syntax (maybe lctl?) that will eliminate > the failnode parameter from the config so there's no chance it gets in the > way of the servicenode parameter? > you have set the failnode with tunefs.lustre, right? You can erase *all* parameters with tunefs.lustre --erase-params and set the correct ones again. You can combine several ones in one call, and I recommend to use also the dry-run option before actually changing anything
tunefs.lustre --erase-params --mgsnode=10.11.12.13@o2ib --param sys.timeout=300 --failnode=10.11.12.101@o2ib --dryrun /dev/mapper/some-device the output will be the previous values and the premanent disk data which the command intents to write. If this is ok, ommit the --dryrun option. BTW the file system must be unmounted to perform the tunefs command.
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