Disk Segments; Initializing Disks; Before You Begin; Section 4.2, "Initializing Disks - Novell LINUX ENTERPRISE SERVER 10 SP2 - STORAGE ADMINISTRATION GUIDE 05-15-2009 Administration Manual

Segment Manager
MAC

4.1.2 Disk Segments

After you initialize the disk by adding a segment manager, you see metadata and free space
segments on the disk. You can then create one or multiple data segments in a disk segment.
Disk Segment Types
Table 4-2
Segment Type
Metadata
Free Space
Data

4.2 Initializing Disks

You must initialize new disks and disks that you want to reformat. After the disk is initialized, you
can subdivide, or carve, the device into one or more disk segments for your file systems.
Section 4.2.1, "Before You Begin," on page 36
Section 4.2.2, "Guidelines," on page 37
Section 4.2.3, "Adding a Segment Manager," on page 37

4.2.1 Before You Begin

If you use large disks or disk arrays, use the vendor's tools to carve them into the sizes that are
usable for the management tools you plan to use. For example, the
up to 2 TB in size, so the limit also applies to the
create with EVMS can be larger than 2 TB, of course, because the
disks underneath that storage structure.
When you boot the server, EVMS scans and recognizes all devices it manages. If you add a new
device to the server or create a device using
dev/evms
IMPORTANT: If you cannot find a new disk, device, or volume, look under
browser, or look for compatibility volumes in the Volumes Manager in the EVMS GUI (
36 SLES 10 SP2: Storage Administration Guide
Description
A partitioning scheme for Mac-OS partitions.
Description
A set of contiguous sectors that contain information needed by the segment
manager.
A set of contiguous sectors that are unallocated or not in use. Free space can
be used to create a segment.
A set of contiguous sectors that has been allocated from a disk. The segment
might be in use for a volume or a software RAID.
as a compatibility volume, such as
md
plug-in for EVMS. Software RAID devices you
md
md
, EVMS automatically mounts it on reboot under
mkfs
.
/dev/evms/sdb
driver recognizes disks only
driver plug-in manages the
in a file
/dev/evms
evmsgui
/
).