Using Mdadm To Configure Raid-Based And Multipath Storage; Creating A Raid Device With; Mdadm - Red Hat ENTERPRISE LINUX 4 - INSTALLATION GUIDE FOR IBM S-390 AND IBM ESERVER ZSERIES Installation Manual

Syncing disks...
Done.
3. Using

mdadm

Storage
Similar to other tools comprising the
to perform all the necessary functions related to administering multiple-device sets. This section
explains how can be used to:
mdadm
• Create a RAID device
• Create a multipath device

3.1. Creating a RAID Device With

To create a RAID device, edit the
values:
ARRAY
DEVICE /dev/sd[abcd]1
ARRAY /dev/md0 devices=/dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1
In this example, the
DEVICE
page for more information) to define the following SCSI devices:
•
/dev/sda1
•
/dev/sdb1
•
/dev/sdc1
•
/dev/sdd1
The line defines a RAID device (
ARRAY
by the line.
DEVICE
Prior to the creation or usage of any RAID devices, the
RAID devices:
Personalities :
read_ahead not set
Event: 0
unused devices: <none>
to Configure RAID-Based and Multipath
raidtools
/etc/mdadm.conf
line is using traditional file name globbing (refer to the
/dev/md0
Using to Configure RAID-Based and
mdadm
package set, the
mdadm
mdadm
file to define appropriate
) that is comprised of the SCSI devices defined
/proc/mdstat
command can be used
and
DEVICE
(7) man
glob
file shows no active
69