Re: Debian Lenny OpenSSI with LVM and RAID 1

"Cumberland, Lonnie" <[email protected]> Tue, 10 Aug 2010 09:56:57 -0400
Newsgroups gmane.linux.cluster.ssic.user
Message-ID <A3FD81D57663BD41BF701B44F5E75CE712D6CE394A@MBCLUSTER.xchange.nist.gov>
Thanks to everyone for the wonderful information and I am making really good progress here at the moment.

I have just modified my fstab to mount the swaps and drives for each node.

-----------------------------------------------------
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
   proc         /proc   proc    defaults,node=* 0       0

UUID=333de891-33d7-46eb-8aff-640abd6133fc       /       ext3    chard,errors=remount-ro,node=1  0       1

/dev/sda5       none    swap    sw,node=1       0       0

/dev/sda1       none    swap    sw,node=2       0       0
/dev/sda1       none    swap    sw,node=3       0       0
/dev/sda1       none    swap    sw,node=4       0       0
/dev/sda1       none    swap    sw,node=5       0       0

/dev/sda2       /etc/mnt/mnt02  ext3    rw,node=2       0       2
/dev/sda2       /etc/mnt/mnt03  ext3    rw,node=3       0       2
/dev/sda2       /etc/mnt/mnt04  ext3    rw,node=4       0       2
/dev/sda2       /etc/mnt/mnt05  ext3    rw,node=5       0       2

/dev/scd0       /media/cdrom0   udf,iso9660     user,noauto,node=1      0      0
/dev/fd0        /media/floppy0  auto    rw,user,noauto,node=*   0       0
---------------------------------------------------

Also noticed that doing a "mount -a" from the head node does not seem to load up new fstab and mount the drives.

I had to manually do:

Onnode 2 mount /dev/sda2 /mnt/mnt02

For each node. Why is that?

I will be moving things around a bit, but for now, just wanted to test out some things.

Also, if I can mount things through the fstab on the head node then why do I need the command which is discussed in the documentation.

Onnode 2 ./clusterfstab --nodenum=2 --mountpoint=<some mount point>


Thanks and have a great day,
Lonnie Cumberland, Prof.
Physicist
 

> -----Original Message-----
> From: Scott Walters [mailto:[email protected]]
> Sent: Tuesday, August 10, 2010 5:33 AM
> To: Mulyadi Santosa
> Cc: Openssi users
> Subject: Re: [SSI-users] Debian Lenny OpenSSI with LVM and RAID 1
> 
> > @Lonnie: perhaps, just an idea, you would like to consider Dragonfly
> > BSD too? AFAIK they implement distributed fs too.
> >
> > Mulyadi Santosa
> 
> Dragonfly is still reworking kernel facilities and filesystem
> primitives
> to be distributed friendly.  They have a good deal of work left.  I'm
> hoping for them.
> 
> Harddrives in each machine to create one large filesystem might just
> not
> be realistic right now.  A NAS design might be the way to go.
> 
> -scott
> 
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