Installation guide

If you choose Fill all space up to (MB), you must give size constraints in the field to the
right of this option. This allows you to keep a certain amount of space free on your hard drive for
future use.
Force to be a primary partition: Select whether the partition you are creating should be
one of the first four partitions on the hard drive. If unselected, the partition is created as a logical
partition. Refer to Section 26.1.3, “ Partitions within Partitions — An Overview of Extended
Partitions” , for more information.
Encrypt: Choose whether to encrypt the partition so that the data stored on it cannot be
accessed without a passphrase, even if the storage device is connected to another system. Refer
to Chapter 29, Disk Encryption Guide for information on encryption of storage devices. If you select
this option, the installer prompts you to provide a passphrase before it writes the partition to the
disk.
OK: Select OK once you are satisfied with the settings and wish to create the partition.
Cancel: Select Cancel if you do not want to create the partition.
12 .1 9.5 .1 . File Syst em T ype s
Red Hat Enterprise Linux allows you to create different partition types, based on the file system they
will use. The following is a brief description of the different file systems available, and how they can
be utilized.
ext3 — The ext3 file system is based on the ext2 file system and has one main advantage —
journaling. Using a journaling file system reduces time spent recovering a file system after a crash
as there is no need to fsck ⁠ the file system. A maximum file system size of 16TB is supported
for ext3. The ext3 file system is selected by default and is highly recommended.
ext2 — An ext2 file system supports standard Unix file types (regular files, directories, symbolic
links, etc). It provides the ability to assign long file names, up to 255 characters.
physical volume (LVM) — Creating one or more physical volume (LVM) partitions allows you
to create an LVM logical volume. LVM can improve performance when using physical disks. For
more information regarding LVM, see the Red Hat Enterprise Linux Deployment Guide.
software RAID — Creating two or more software RAID partitions allows you to create a RAID
device. For more information regarding RAID, see chapter RAID (Redundant Array of Independent
Disks) in the Red Hat Enterprise Linux Deployment Guide.
swap — Swap partitions are used to support virtual memory. In other words, data is written to a
swap partition when there is not enough RAM to store the data your system is processing. See the
Red Hat Enterprise Linux Deployment Guide for additional information.
12.19.6. Edit ing Part it ions
To edit a partition, select the Edit button or double-click on the existing partition.
Note
If the partition already exists on your disk, you can only change the partition's mount point. To
make any other changes, you must delete the partition and recreate it.
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⁠Chapt er 1 2 . Inst alling on IBM Syst em i and IBM Syst em p syst ems
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