I have a Lustre filesystem that has been created 3 years ago. I would like to enable uninit_bg feature on that filesystem devices. I found in tune2fs manual page that : -- Enabling certain filesystem features may prevent the filesystem from being mounted by kernels which do not support those features. In particular, the uninit_bg and flex_bg features are only supported by the ext4 filesystem. --
The ldiskfs of the filesystem is based on ext3 so I am not sure if it would be safe to enable that feature. However my other, newer Lustre filesystem has also ldiskfs based on ext3 file system and I can see that uninit_bg feature is enabled there (It had to be enabled by default at the filesystem creation time). So my question is, if it is safe to enable uninit_bg feature on already created ldiskfs (based on ext3) ? My system information: RHEL5.4 kernel 2.6.18-164.11.1.el5_lustre.1.8.3 e2fsprogs-1.41.10.sun2-0redhat.x86_64 Best regards -- -- Wojciech Turek Assistant System Manager High Performance Computing Service University of Cambridge _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
