[LU-16108] Require change on default dom_stripesize

• Status: Resolved
• Project: Lustre
• Type: Question/Request
• Priority: Minor
• Reporter: Francois Cloette
• Assignee: WC Triage
• Resolution: Not a Bug

Environment

DEV

• Story Points: 1

Description

Need assistance in changing default dom_stripesize for lustre MDT.

No option found on our servers.

[root@lustre_dev ~]# lctl get_param lod.*MDT0000*.dom_stripesize
error: get_param: param_path 'lod/*MDT0000*/dom_stripesize': No such file or directory

Searched for lod parameter "lctl get_param -R '*'|grep -i lod" but it does not exist. 

Can you please assist as i need to change the mdt value above the default 1MB ?

Thanks 

Issue Links

• is cloned by: LU-16141 Luste MGS filesystem space increase

Comments

[Andreas Dilger]

If you don't have any "lod.*" parameters it is likely because you are not running this on the MDS, or the filesystem is not mounted, or using a Lustre version that does not support DoM (no version information is given in the ticket). This is a parameter on the MDS and should be set there. If setting it permanently, then use "lctl set_param -P lod.*MDT0000*.dom_stripesize=NNNN" on the MGS (if separate from the MDS).

mds# lctl get_param lod.*.dom_stripesize
lod.myth-MDT0000-mdtlov.dom_stripesize=1048576

[Francois Cloette]

Thank you found it, it is on the MGS server.

[Francois Cloette]

Thanks the issue can be closed.