Expanding A Raid; Adding Mirrors To A Raid 1 Device - Novell LINUX ENTERPRISE SERVER 10 SP3 - STORAGE ADMINISTRATION GUIDE 2-23-2010 Administration Manual

8b Select the RAID device you created in
8c Specify the location where you want to mount the device, such as
8d Click Mount.
9 Enable
to activate EVMS automatically at reboot.
boot.evms
9a In YaST, select System > System Services (Run Level).
9b Select Expert Mode.
9c Select Boot.evms.
9d Select Set/Reset.
9e Select Enable the Service.
10 Edit the
/etc/fstab
mount the device manually from

6.3 Expanding a RAID

This section explains how to expand a RAID by adding segments to it.
IMPORTANT: Before you can expand the size of a RAID device, you must deactivate it.
Section 6.3.1, "Adding Mirrors to a RAID 1 Device," on page 87
Section 6.3.2, "Adding Segments to a RAID 4 or 5," on page 88

6.3.1 Adding Mirrors to a RAID 1 Device

In a RAID 1 device, each member segment contains its own copy of all of the data stored in the
RAID. You can add a mirror to the RAID to increase redundancy. The segment must be at least the
same size as the smallest member segment in the existing RAID 1 device. Any excess space in the
segment is not used. Ideally, all member segments of a RAID 1 device are the same size.
Adding an Available Segment as the New Mirror
1 Deactivate the RAID 1 device.
2 Use the Add Active (
3 From the list of available segments, select one that is the same size or larger than the smallest
existing member of the RAID device.
4 Reactivate the RAID device.
Activating A Spare Disk as the New Mirror
1 If you have not set up a spare disk, do it now.
For information, see
2 Use the Activate Spare (
new mirror.
Step
file to automount the RAID mount point created in
.
evmsgui
plug-in) function.
addactive
Section 6.4, "Adding or Removing a Spare Disk," on page
plug-in) function to add it to the RAID 1 device as a
activatespare
5, such as
/dev/evms/md/md0
/home
Step
Managing Software RAIDs with EVMS
.
.
8c, or you can
88.
87