[lustre-discuss] mdt mounting error

[parag_k]

Okay...will check that....but lustre & lnet services are running.


Regards,Parag
-------- Original message --------From: Ben Evans <bevans at cray.com> Date: 01/11/2017  6:18 pm  (GMT+05:30) To: Raj <rajgautam at gmail.com>, Parag Khuraswar <parag_k at citilindia.com> Cc: Lustre discussion <lustre-discuss at lists.lustre.org> Subject: Re: [lustre-discuss] mdt mounting error 

On the node in question Try: lsmod | grep lustre



followed by: modprobe lustre



I'm betting the modules aren't loaded for some reason, generally that reason is found in dmesg.





From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Raj <rajgautam at gmail.com>

Date: Wednesday, November 1, 2017 at 7:48 AM

To: Parag Khuraswar <parag_k at citilindia.com>

Cc: Lustre discussion <lustre-discuss at lists.lustre.org>

Subject: Re: [lustre-discuss] mdt mounting error








Parag, I have not tested two FS using a common MGT and I don’t know whether it is supported.




On Wed, Nov 1, 2017 at 6:37 AM Parag Khuraswar <parag_k at citilindia.com> wrote:



Hi Raj,



But I have two file systems,

And I think I can use one mgt for two filesystems. Please correct me if

I am wrong.



Regards,

Parag





On 2017-11-01 16:56, Raj wrote:

> 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 at o2ib

> --servicenode=10.2.1.205 at o2ib --FSNAME=HOME --mgs /dev/mapper/mpathc

>

> - verify if /mdt directory exists

>

> On Wed, Nov 1, 2017 at 6:16 AM Raj <rajgautam at 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

>> <parag_k at citilindia.com> wrote:

>>

>> Hi Raj,

>>

>> Yes, /dev/mapper/mpatha available.

>>

>> I could format and mount using ext4.



>>

>> Regards,

>>

>> Parag

>>

>> FROM: Raj [mailto:rajgautam at 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

>> <parag_k at citilindia.com> wrote:

>>

>> Hi,

>>

>> I am getting below error while mounting mdt. Mgt is mounted.

>>

>> Please suggest

>>

>> [root at 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

>>

>> _______________________________________________

>> lustre-discuss mailing list

>> lustre-discuss at lists.lustre.org

>> 
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org









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