[Lustre-discuss] lustre and software RAID

[Samuel Aparicio]

it worked ... but the issue went away as well.

Professor Samuel Aparicio BM BCh PhD FRCPath
Nan and Lorraine Robertson Chair UBC/BC Cancer Agency
675 West 10th, Vancouver V5Z 1L3, Canada.
office: +1 604 675 8200 cellphone: +1 604 762 5178: lab website http://molonc.bccrc.ca

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On Jan 25, 2011, at 6:39 AM, Kevin Van Maren wrote:

> 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
> 
> Kevin
> 

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