Reference

mdcreate(8)

creates a mdtab entry

NAME

mdcreate - creates a mdtab entry

SYNOPSYS

mdcreate [-cxk] [-fx] personality md_dev dev0 dev1 ...

DESCRIPTION

mdcreate sets up a mdtab entry, and adds some checksum informations to insure consistency of the virtual device.

OPTIONS

-cn

Set the chunk size as PAGE_SIZE << n. You can also set the chunk size in kilobytes with -cxk where x is a power of 2.

-fn

(raid-1 only)
Set the maximum fault number as n.

EXAMPLES

Currently, usable personalities are linear, raid0 & raid1. To create a mdtab entry for a raid0 device using 8k chunks, use :

/sbin/mdcreate -c8k raid0 /dev/md0 /dev/sdb1 /dev/sdc1

History

-cn since Debian 2.0 (Hamm); -fn since Debian 2.0 (Hamm).

-c until Debian 1.3 (Bo); -f until Debian 1.3 (Bo).