I am trying to reclaim the default 5% of reserved disk space on Lustre filesystem following procedure describe in the Lustre manual (chapter 23.3.10). File system is in use and I would like to avoid any downtime.
[r...@oss17 ~]# tune2fs -m 1 /dev/sdg tune2fs 1.41.12.2.ora1 (14-Aug-2010) tune2fs: MMP: device currently active while trying to open /dev/sdg I understand it is the MMP flag which prevent tune2fs to access the device, is there a way to work around this or is my only option to umount OSTs (eek, downtime) Best regards, Wojciech
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