[Lustre-discuss] Configuration of lustre FS on single node

Amit Sharma Amit.Sharma at Sun.COM
Thu Feb 28 22:47:52 PST 2008


Ashok,

Just looking at the command you tried :
 > $ mkfs.lustre --fsname spfs --mdt --mgs /dev/sda

You may have wrecked your root file system. Or is /dev/sda some other 
device ?

It may be simpler for you to try llmount.sh to get a simple setup of 
lustre on a single node (with loop back mounts)

thanks,
Amit

ashok bharat bayana wrote:
> 
> Hello,
> I successfully build lustre(1.6.4.2) on my system for a patchless client 
> But I dont know how to proceed in configuring the file system.
> 
> I'm trying to build all MDS,client and MDT's on a single node.
>  >From the tutorials I came to know that
> 
> First, create an MDT for the "spfs" file system that uses the /dev/sda 
> disk. This MDT also acts as the MGS for the site.
> 
> $ mkfs.lustre --fsname spfs --mdt --mgs /dev/sda
> 
> But by triggering this command my system crashed in which the whole data 
> is lost and again I need to install the OS.
> I want help in proceeding of mounting a lustre file system.
> 
> Thanks and Regards,
> Ashok Bharat
> 
> -----Original Message-----
> From: lustre-discuss-bounces at lists.lustre.org on behalf of 
> lustre-discuss-request at lists.lustre.org
> Sent: Wed 2/27/2008 10:30 PM
> To: lustre-discuss at lists.lustre.org
> Subject: Lustre-discuss Digest, Vol 25, Issue 56
> 
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> Today's Topics:
> 
>    1. Multiple NICs per OST (Joshua Bower-Cooley)
>    2. obd error on MGS/MDT node (Jeremy Mann)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 26 Feb 2008 11:55:19 -0800
> From: Joshua Bower-Cooley <jbowercooley at lcogt.net>
> Subject: [Lustre-discuss] Multiple NICs per OST
> To: lustre-discuss at lists.lustre.org
> Message-ID: <200802261155.19907.jbowercooley at lcogt.net>
> Content-Type: text/plain;  charset="utf-8"
> 
> Hi-
> I've had lustre running happily for some time over a single 10g ethernet NIC
> per node. After switching to dual 10g and creating a new filesystem
> (1.6.4.2), I'm seeing nothing but keep-alive packets with bad checksums.
> 
> What is the current "correct" way to do this now? The manual suggest not 
> using
> bonding, but several list postings now reccommend it. Without bonding, do I
> need to have my 2 switches stacked, or will Lustre recognize the division in
> my subnet?
> 
> LNET module options I've tried are:
> 1) networks="tcp0(eth2,eth3)"
> 2) ip2nets="tcp(eth2,eth3); tcp(eth2) 10.9.[1-4].*; tcp(eth3) 10.9.[5-8].*;"
> and many other variations
> 
> All other services are functional on both interfaces.
> 
> Thanks in advance,
> J Bower-Cooley
> Scientific Systems Engineer
> Las Cumbres Observatory Global Telescope
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 27 Feb 2008 09:50:08 -0600 (CST)
> From: "Jeremy Mann" <jeremy at biochem.uthscsa.edu>
> Subject: [Lustre-discuss] obd error on MGS/MDT node
> To: lustre-discuss at lists.lustre.org
> Message-ID:
>         <62901.24.173.62.147.1204127408.squirrel at biochem.uthscsa.edu>
> Content-Type: text/plain;charset=iso-8859-1
> 
> Today we are starting to see obd_change_cbdata errors on our MGS/MDT node.
> What does this error mean?
> 
> Version of lustre and kernel is:
> 
> 2.6.9-42.0.10.EL_lustre-1.6.0.1smp X86_64
> 
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 1
> previous similar message
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata())
> obd_change_cbdata: NULL export
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 1
> previous similar message
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata())
> obd_change_cbdata: NULL export
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 2
> previous similar messages
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata())
> obd_change_cbdata: NULL export
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 4
> previous similar messages
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata())
> obd_change_cbdata: NULL export
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 5
> previous similar messages
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata())
> obd_change_cbdata: NULL export
> LustreError: 65:0:(obd_class.h:1171:obd_change_cbdata()) Skipped 1
> previous similar message
> 
> --
> Jeremy Mann
> jeremy at biochem.uthscsa.edu
> 
> University of Texas Health Science Center
> Bioinformatics Core Facility
> http://www.bioinformatics.uthscsa.edu
> Phone: (210) 567-2672
> 
> 
> 
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-- 
Amit Sharma
Lustre Engineering
Sun Microsystems, Bangalore.



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