[lustre-discuss] Error when mounting additional MDT

Thomas Roth t.roth at gsi.de
Thu Jul 4 06:59:50 PDT 2019

Hi all,

when adding an MDT2 to a system with MGS+MDT0 and MDT1, there was an interruption, the MGS at first

LustreError: 140-5: Server hebe-MDT0002 requested index 2, but that index is already
in use. Use --writeconf to force
LustreError: 30446:0:(mgs_handler.c:535:mgs_target_reg()) Failed to write hebe-MDT0002
log (-98)

but seems to have been convinced to accept the new MDT anyhow,

Lustre: ctl-hebe-MDT0000: super-sequence allocation rc = 0

because afterwards, I could create a directory with

lfs mkdir -i 2 /lustre/test2

A file put into that directory shows

# lfs getstripe -M /lustre/test2/testfile

Does this mean that the log for hebe-MDT0002 has been written?
Or should we do the big writeconf?


Thomas Roth

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