Yes but in given example in section 2.2.2.1 two mgsnodes are specified for --ost and you are specifying it for --mdt maybe that is the problem? Do you have combined mgs with mdt ? Do you have one file system or more?

Wojciech
On 12 Nov 2007, at 21:56, Robert LeBlanc wrote:

Yes only one MGS per site, but you should be able to specify multiple MGS nodes. We have done it before with 1.6.0. See http:// manual.lustre.org/manual/LustreManual16_HTML/DynamicHTML-05-1.html section 2.2.2.1.

Robert


On 11/12/07 2:48 PM, "Wojciech Turek" <[EMAIL PROTECTED]> wrote:

Hi,

I think this is because there can be only one MGS per lustre installation (this is what manual says).

Wojciech Turek
On 12 Nov 2007, at 21:18, Robert LeBlanc wrote:



This is what I'm getting:

head2-2:~# mkfs.lustre --mkfsoptions="-O dir_index" --reformat -- mdt --fsname=home [EMAIL PROTECTED] -- [EMAIL PROTECTED] [EMAIL PROTECTED] /dev/ mapper/ldiskd-part1

    Permanent disk data:
 Target:     home-MDTffff
 Index:      unassigned
 Lustre FS:  home
 Mount type: ldiskfs
 Flags:      0x71
               (MDT needs_index first_time update )
 Persistent mount opts: errors=remount-ro,iopen_nopriv,user_xattr
Parameters: [EMAIL PROTECTED] [EMAIL PROTECTED] mdt.group_upcall=/usr/sbin/ l_getgroups

 device size = 972MB
 formatting backing filesystem ldiskfs on /dev/mapper/ldiskd-part1
         target name  home-MDTffff
         4k blocks     0
         options       -O dir_index -i 4096 -I 512 -q -F
mkfs_cmd = mkfs.ext2 -j -b 4096 -L home-MDTffff -O dir_index -i 4096 -I 512 -q -F /dev/mapper/ldiskd-part1
 Writing CONFIGS/mountdata


 For some reason, only the last --mgsnode option is being kept.

 Robert


 -----Original Message-----
 From: Nathan Rutman [mailto:[EMAIL PROTECTED]
 Sent: Mon 11/12/2007 1:51 PM
 To: Robert LeBlanc
 Cc: lustre
 Subject: Re: [Lustre-discuss] More failover issues

 Robert LeBlanc wrote:
> In 1.6.0, when creating a MDT, you could specify multiple -- mgsnode options > and it would failover between them. 1.6.3 only seems to take the last one > and [EMAIL PROTECTED]:[EMAIL PROTECTED] doesn't seem to failover
 > to the other node. Any ideas how to get around this?
 >
 Multiple --mgsnode parameters should work:
 mkfs.lustre --mkfsoptions="-O dir_index" --reformat --mdt
[EMAIL PROTECTED] [EMAIL PROTECTED] --device- size=10000 /tmp/foo

    Permanent disk data:
 Target:     lustre-MDTffff
 Index:      unassigned
 Lustre FS:  lustre
 Mount type: ldiskfs
 Flags:      0x71
               (MDT needs_index first_time update )
 Persistent mount opts: errors=remount-ro,iopen_nopriv,user_xattr
 Parameters: [EMAIL PROTECTED] [EMAIL PROTECTED]

 > Robert
 >
 > Robert LeBlanc
 > College of Life Sciences Computer Support
 > Brigham Young University
 > [EMAIL PROTECTED]
 > (801)422-1882
 >
 >
 > _______________________________________________
 > Lustre-discuss mailing list
 > [email protected]
 > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
 >




_______________________________________________
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Mr Wojciech Turek
Assistant System Manager
University of Cambridge
High Performance Computing service
email: [EMAIL PROTECTED]
tel. +441223763517







Robert LeBlanc
College of Life Sciences Computer Support
Brigham Young University
[EMAIL PROTECTED]
(801)422-1882


Mr Wojciech Turek
Assistant System Manager
University of Cambridge
High Performance Computing service
email: [EMAIL PROTECTED]
tel. +441223763517



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