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...ally empty. The one that is full is a little sluggish at times with the following messages appearing in syslog on the OSS - Lustre: 5809:0:(filter_io_26.c:698:filter_commitrw_write()) data1-OST0001: slow i_mutex 82s Lustre: 5809:0:(filter_io_26.c:711:filter_commitrw_write()) data1-OST0001: slow brw_start 82s Lustre: 5809:0:(filter_io_26.c:763:filter_commitrw_write()) data1-OST0001: slow direct_io 82s Lustre: 5809:0:(filter_io_26.c:776:filter_commitrw_write()) data1-OST0001: slow commitrw commit 82s But the same two OSS are also exporting the empty volume, which is very fast on any te...