Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Installationshandbuch PDF herunterladen (Seite 236)

216 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0

16.Create a partition with the fdisk command:

# fdisk /dev/sda

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

switch off the mode (command 'c') and change display units to

sectors (command 'u').

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-8192, default 1):

Using default value 1

Last cylinder, +cylinders or +size{K,M,G} (1-8192, default 8192):

Using default value 8192

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

17.Create an ext4 file system with the

mkfs.ext4 command:

# mkfs.ext4 /dev/sda1

mke2fs 1.41.12 (17-May-2010)

Filesystem label=

OS type: Linux

...

18.You should now be able to mount it and see the size:

# mount /dev/sda1 /mnt

# df -h /mnt

Filesystem Size Used Avail Use% Mounted on

/dev/sda1 7.9G 146M 7.4G 2% /mnt

19.Create a test file:

# echo “this is the file foo” > /mnt/foo

# umount /mnt

13.4.2 Configuring multipathing

It is a best practice to set up multipathing for better availability. Perform the following steps:

1. Create a second WWPN:

# cd /sys/bus/ccw/drivers/zfcp/0.0.010a

# ls

availability cutype driver online subsystem

cmb_enable devtype modalias power uevent

# echo 1 > online

2. Note the second WWPN. In this example, it is 0x500507630503c73d:

# ls

0x500507630503c73d devtype in_recovery peer_wwnn status

1 2 ... 231 232 233 234 235 236 237 238 239 240 241 ... 295 296

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