[Lustre-discuss] lustre and software RAID

Kevin Van Maren kevin.van.maren at oracle.com
Tue Jan 25 06:39:46 PST 2011

Andreas Dilger wrote:
> On 2011-01-21, at 14:50, Samuel Aparicio wrote:
>> modinfo reports as follows. seems like the ext4 modules.
>> the odd thing is that the format works when the disk array is already presented as a raid set, rather than making the raidset with mdadm on the OSS
>> --------
>> filename:       /lib/modules/2.6.18-194.3.1.el5_lustre.1.8.4/updates/kernel/fs/lustre-ldiskfs/ldiskfs.ko
>> description:    Fourth Extended Filesystem
>> ---------
> After the filesystem is formatted with mkfs.lustre, you should be able to mount it directly with "mount -t ext4 /dev/md??? /mnt" and see a few files in it.

Last time I tried it (with Lustre 1.8.5), that didn't work for me (see 
Bug 24398), although I left out "-t ext4" it tried to mount as ext4.  
"mount -t ldiskfs ..." should work


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