I don't think you use the --servicenode option when formatting an
mgs-only disk, or the --fsname option. Neither of those apply for an
mgs-only with multiple filesystems.
My command for a zfs backed mgs was:
/*mkfs.lustre --mgs --backfstype=zfs MGT/mgt*/
Then I created 2 different sets of OSTs/MDTs with different fsnames, but
the same mgsnode.
Brian Andrus
On 11/1/2017 6:50 PM, Parag Khuraswar wrote:
Hi Raj,
But I have two file system. And I think one mgt can be used for two
filesystems. Correct me if I am wrong.
Regards,
Parag
*From:*Raj [mailto:rajgau...@gmail.com]
*Sent:* Wednesday, November , 2017 4:57 PM
*To:* Parag Khuraswar; Lustre discussion
*Subject:* Re: [lustre-discuss] mdt mounting error
The following can contribute to this issue:
- Missing FS name in mgt creation (it must be <=9 character
long): --fsname=
mkfs.lustre --servicenode=10.2.1.204@o2ib
<mailto:--servicenode=10.2.1.204@o2ib> --servicenode=10.2.1.205@o2ib
<mailto:--servicenode=10.2.1.205@o2ib> *--fsname=home* --mgs
/dev/mapper/mpathc
- verify if /mdt directory exists
On Wed, Nov 1, 2017 at 6:16 AM Raj <rajgau...@gmail.com
<mailto:rajgau...@gmail.com>> wrote:
What options in mkfs.lustre did you use to format with lustre?
On Wed, Nov 1, 2017 at 6:14 AM Parag Khuraswar
<para...@citilindia.com <mailto:para...@citilindia.com>> wrote:
Hi Raj,
Yes, /dev/mapper/mpatha available.
I could format and mount using ext4.
Regards,
Parag
*From:*Raj [mailto:rajgau...@gmail.com
<mailto:rajgau...@gmail.com>]
*Sent:* Wednesday, November , 2017 4:39 PM
*To:* Parag Khuraswar; Lustre discussion
*Subject:* Re: [lustre-discuss] mdt mounting error
Parag,
Is the device /dev/mapper/mpatha available?
If not, the multipathd may not have started or the multipath
configuration may not be correct.
On Wed, Nov 1, 2017 at 5:18 AM Parag Khuraswar
<para...@citilindia.com <mailto:para...@citilindia.com>> wrote:
Hi,
I am getting below error while mounting mdt. Mgt is mounted.
Please suggest
[root@mds2 ~]# mount -t lustre /dev/mapper/mpatha /mdt
mount.lustre: mount /dev/mapper/mpatha at /mdt failed: No
such file or directory
Is the MGS specification correct?
Is the filesystem name correct?
If upgrading, is the copied client log valid? (see upgrade
docs)
Regards,
Parag
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