[Lustre-discuss] Experienced New User needing help

[Iain Grant]

Hi there,

 

I have just started a new position with a company that has a nice 20
node cluster.

 

This cluster is a nice setup, except they have not got any shared
storage setup, they did have NFS configured but the read times they were
getting for processing data was slowing the cluster down considerably.

After looking around I have found lustre and thought I would configure
it on a spare node and see what kind of results I can get from it.

 

So I have a system running Redhat Enterprise V 4 and have downloaded the
the pre built RPM's from the following area on clusterfs.com

 

http://www.clusterfs.com/downloads/public/Lustre/v1.6/Production/latest/
rhel-2.6-i686/

 

I've installed the new kernel and modified the grub.conf file so it is
being booted up.

Also I have installed

 

Kernel-lustre-source

Lustre-1.6.3-...

Lustre-debuginfo

Lustre-ldiskfs

Lustre-modules

Lustre source

 

Now at the moment I have a second 70Gb sata drive on the system I would
like to use as the lustre drive, so following the instructions I have
used the following command

 

Mkfs.lustre -mdt -mgs /dev/sdb

 

Which shows up all the right messages and is successful, 

I then mount the drive 

 

Mount -t lustre /dev/sdb /test_share

 

which successfully mounts and I can look at  "cat
/proc/fs/lustre/devices" and can see all the right information.

 

Now the thing is if I try and write to this filesystem I get an error

 

Not a directory ????

 

So I'm kinda lost. What am I doing wrong ???????

 

If I mount the filesystem with a standard command

 

Mount /dev/sdb /test_share

 

I can see the following files and directories listed

 

[root at tester /]# ls /test_share

CONFIGS       last_rcvd  lost+found  OBJECTS  ROOT

health_check  LOGS       lov_objid   PENDING

 

Help.

 

 

 

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