#Ubuntu raid monitor install
#Ubuntu raid monitor software

Now it's time to prepare the physical devices that will be used in our array.

Note that we will need to add an entry to the /etc/fstab file later in order for the array to be properly mounted during the boot process as well. When asked whether we want to start (reassemble) our array automatically during each boot, choose Yes. Since we will not use our RAID-1 for the root filesystem, we will leave the answer blank: What we need to enter on the next screen will depend on this decision.

#Ubuntu raid monitor install

On Debian, the installation will start with the following explanatory message to help us decide whether or not we are going to install the root filesystem on a RAID array. On Ubuntu, you will be asked to configure postfix MTA for sending out email notifications (as part of RAID monitoring). On Debian and its derivatives, mdadm can be installed with aptitude or apt-get: # aptitude install mdadm Fedora, CentOS or RHEL:Īs mdadm comes pre-installed, all you have to do is to start RAID monitoring service, and configure it to auto-start upon boot: # systemctl start mdmonitorįor CentOS/RHEL 6 or earlier, use these commands instead: # service mdmonitor start On Debian-based distros, mdadm can be installed with aptitude or apt-get. On Linux distros such as Fedora, CentOS, RHEL or Arch Linux, mdadm is available by default.

#Ubuntu raid monitor software

The tool that we are going to use to create, assemble, manage, and monitor our software RAID-1 is called mdadm (short for multiple disks admin). Since the actual storage capacity (size) of a RAID-1 array is the size of the smallest drive, normally (if not always) you will find two identical physical drives in RAID-1 setup. However, it does not replace the need to save periodic system backups in external storage. In the event of any single drive failure, the virtual RAID block device should continue functioning without issues, and allow us to replace the faulty drive without significant production downtime and, more importantly, with no data loss. In fact, that's why most RAID levels normally use multiple physical drives to provide redundancy. While it is possible to implement RAID-1 with partitions on a single physical hard drive (as with other RAID levels), it won't be of much use if that single hard drive fails. In this post, we'll discuss the software setup of a RAID-1 array (also known as a mirroring array), where identical data is written to the two devices that form the array. On modern Linux, basic software RAID functionality is available by default. RAID can be implemented either in software or with a hardware RAID card. Depending on how data is stored in an array of disks (e.g., with striping, mirroring, parity, or any combination thereof), different RAID levels are defined (e.g., RAID-0, RAID-1, RAID-5, etc). Redundant Array of Independent Disks (RAID) is a storage technology that combines multiple hard disks into a single logical unit to provide fault-tolerance and/or improve disk I/O performance. The following instructions will help you, the reader, configure the latest packages for Ubuntu 18.04 LTS (Bionic) to manage your RAID within the host OS.įirst, create a new APT source named hpe.list at /etc/apt/ to create a software RAID-1 array with mdadm on Linux However, many of the posts that walk through this process are outdated and reference APT sources that are no longer available or utilities whose names have changed a few times over the years. Use the HP Smart Storage Utilities for Linux to modify the RAID configuration within the host OS.Insert the drive and reboot the host into the Smart Storage Utility where you can configure the drive.Installing a new drive and preparing it for use in the system can be accomplished in one of two ways: The task was simple: Add a new disk to the host to be setup in a RAID 0 and used for Cinder volumes. 1x Compute Node: HP D元80p G8 (12x LFF w/ HP 420i).1x Infrastructure Node: HP D元60e G8 (4x LFF).My OpenStack cluster consists of the following: I recently deployed Cinder in my OpenStack-Ansible based homelab, and am attempting to learn and use the tools available to me in a more efficient way.

Raid openstack-ansible hpe openstack proliantĪs I branch out of the networking world and into general systems administration duties, I find myself having to learn a lot more about the tools and utilities used to manage said systems.