Linux Plus-Managing Advanced Linux Filesystems

Ref:

• Linux loop devices

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Overview

Advanced disks storage and filesystems LVM - Logical Volume Management

• Dynamic storage RAID
• Create software RAID Networks
• iSCSI - Network-based block storage
• NFS - Sharing out UNIX file systems
• CIFS - Sharing out Windows file systems

Using Flags with parted

Working on the Alma Linux 8.5 Create Disks Files

• Partitioning with flags (Extra information)

Working with LVMs

Working on the Alma Linux 8.5

• Block device files
• Createing LVMs
• Extending LVMs

Understanding Software RAID

• Redundant Array of Inexpersive Disks (RAID)
• Used to create fault tolerant disk arrays
• Traditional Linux Software RAID creates dev mapper virtual device file
• RAID is integrated into btrfs

RAID Levels

• Linear: Partitionis/disk not the same size, volume is expanded across all disks in array. Spare disk is not supported

• RAID 0: Similar to above but the disks or partitions are of similar size
• RAID 1: Mirror data between devices of similar size 1GB volume, will actually taking 2GB of disk space.
• RAID 4/5/6: Three or more devices (4 with RAID 6), data is striped with parity How RAID is calculated using parity data that is stored on the additional disk.

Supported parted flags are:

Working with Mirror Volume

• Create RAID partitions
• Install software raid
• Create mirrored volume

Mirrored Volumes Using btrfs

RAID Mirror with btrfs

Working on openSUSE Create a raid volume with btrfs

Understanding NFS

Working with NFSv4

Working on

• Alma Linux 8.5 as NFS server
• Ubuntu 20.04 as NFS client

NFS

• Create exports (shares) on Alma