.\" -*- nroff -*- .\" Copyright 2006 by Cluster File Systems, Inc. All Rights Reserved. .\" Copyright 2008 by Sun Microsystems. All Rights Reserved. .\" This file may be copied under the terms of the GNU Public License, v2. .\" .TH mkfs.lustre 8 "2008 Mar 15" Lustre "configuration utilities" .SH NAME mkfs.lustre \- format a disk for a Lustre service .SH SYNOPSIS .br .BR mkfs.lustre { --ost | --mdt | --mgs } .I [options] .I device .br .B is one of .TP .BI \--ost object storage target .TP .BI \--mdt metadata storage target .TP .BI \--mgs configuration management service - one per site. This service can be combined with one .BI \--mdt service by specifying both types .SH DESCRIPTION .B mkfs.lustre is used to format a disk device for use as part of a Lustre filesystem. After formatting, a disk can be mounted to start the Lustre service defined by this command. .SH OPTIONS .TP .BI \--backfstype= fstype Force a particular format for the backing fs (ext3, ldiskfs) .TP .BI \--comment= comment Set user comment about this disk, ignored by Lustre. .TP .BI \--device-size= KB Set device size for loop devices .TP .BI \--dryrun Only print what would be done; does not affect the disk .TP .BI \--failnode= nid,... Set the NID(s) of a failover partner. This option can be repeated as desired. .TP .BI \--fsname= filesystem_name The Lustre filesystem this service will be part of. The maximum filesystem_name length is 8 characters. Default is 'lustre' .TP .BI \--index= index Force a particular OST or MDT index .TP .BI \--mkfsoptions= opts Format options for the backing fs. For example, ext3 options could be set here. .TP .BI \--mountfsoptions= opts Set permanent mount options, equivalent to setting in /etc/fstab .TP .BI \--mgsnode= nid,... Set the NID(s) of the MGS node, required for all targets other than the MGS. .TP .BI \--param " key=value" Set permanent parameter .I key to value .IR value . This option can be repeated as desired. Typical options might include: .RS .I \--param sys.timeout=40 .RS System obd timeout .RE .I \--param lov.stripesize=2M .RS Default stripe size .RE .I \--param lov.stripecount=2 .RS Default stripe count .RE .I \--param failover.mode=failout .RS Return errors instead of waiting for recovery .RE .RE .TP .BI \--quiet Print less information. .TP .BI \--reformat Reformat an existing Lustre disk .TP .BI \--stripe-count-hint= stripes Used for optizing MDT inode size .TP .BI \--verbose Print more information. .SH EXAMPLES .TP .B mkfs.lustre --fsname=testfs --mdt --mgs /dev/sda1 Combined MGS and MDT for filesystem 'testfs' on node e.g. cfs21 .TP .B mkfs.lustre --fsname=testfs --ost --mgsnode=cfs21@tcp0 /dev/sdb OST for filesystem 'testfs' on any node using the above MGS. .TP .B mkfs.lustre --mgs /dev/sda1 Standalone MGS on e.g. node cfs22 .TP .B mkfs.lustre --fsname=myfs1 --mdt --mgsnode=cfs22@tcp0 /dev/sda2 MDT for filesystem 'myfs1' on any node, using the above MGS .SH BUGS Please report all bugs to Sun Microsystems via http://bugzilla.lustre.org/ .SH AVAILABILITY .B mkfs.lustre is part of the .BR Lustre (7) filesystem package and is available from Sun Microsystems via .br http://downloads.lustre.org/ .SH SEE ALSO .BR lustre (7), .BR mount.lustre (8), .BR tunefs.lustre (8), .BR lctl (8), .BR lfs (1)
