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Learning RHEL Networking

You're reading from   Learning RHEL Networking Gain Linux administration skills by learning new networking concepts in Red Hat Enterprise Linux 7

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Product type Paperback
Published in Jun 2015
Publisher
ISBN-13 9781785287831
Length 216 pages
Edition 1st Edition
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Toc

Table of Contents (13) Chapters Close

Preface 1. Introducing Enterprise Linux 7 FREE CHAPTER 2. Configuring Network Settings 3. Configuring Key Network Services 4. Implementing iSCSI SANs 5. Implementing btrfs 6. File Sharing with NFS 7. Implementing Windows Shares with Samba 4 8. Integrating RHEL 7 into Microsoft Active Directory Domains 9. Deploying the Apache HTTPD Server 10. Securing the System with SELinux 11. Network Security with firewalld Index

Mounting multidisk btrfs volumes from /etc/fstab


If we are mounting the btrfs volumes from the /etc/fstab file, we need to ensure that a btrfs scan is effected before we mount the /data/simple directory. This will locate all the devices that participate within the volume. The initramfs file system can complete this task for us on a later system including RHEL 7. If your existing filesystem was already using btrfs, the scan will be built-in your current initramfs. If btrfs is new to your system, you will need to generate a new initial RAM disk. Make sure that you use the correct initramfs and kernel version for your system when running the following command:

# dracut -v -a btrfs -f /boot/initramfs-$(uname -r) /boot/vmlinuz-$(uname -r)

We can then add an entry into the /etc/fstab file similar to the following:

/dev/sdd  /data/simple  btrfs  defaults  0 0

Creating a RAID1 mirror

The RAID (Redundant Array of Inexpensive Disks) software is also supported by btrfs. The following are the currently...

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