KVM Quick Start Guide - Revision history

SoyMimikyu: /* Lustre Requirements */

2025-02-23T23:57:14Z

Lustre Requirements

← Older revision		Revision as of 16:57, 23 February 2025
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	<br>		<br>

	You can group ~~a number of~~ Lustre file system components together on a single compute node, ~~depending on~~ performance, capacity, and redundancy requirements. You can consolidate nodes by combining the MGS and MDS onto a single node. You can also configure an OSS to host one or more of its own OSTs. It is important, however, that you never combine OSS and MDS on a single node because of concurrency issues.		You can group all Lustre file system components together on a single compute node, at the cost of performance, capacity, and redundancy requirements.
	<br>		<br>

SoyMimikyu: Remove summaries of Lustre components and point the reader to more centralized documentation with the same information.

2025-01-13T14:43:11Z

Remove summaries of Lustre components and point the reader to more centralized documentation with the same information.

@@ Line 11: / Line 11: @@
 Lustre scales for capacity, redundancy, and concurrency by arranging and adding storage components. The metadata servers keep track of object locations, while facilitating client-to-storage connections and arbitration of access to file system data.
-= What are the parts of a Lustre Cluster? =
+For more details on the architecture and internals of Lustre refer to the following pages:
-It is important to remember that the server provides access to, and abstracts, the underlying target that contains the data.
+* [https://www.lustre.org/documentation/ Lustre Manual]
-== Management Server (MGS) ==
+= Lustre Requirements =
 Lustre is only supported on Linux. Because Lustre implementation involves modifications to the Linux kernel, prebuilt packages are only available for a handful of kernels, which are compatible with Red Hat and Ubuntu. Nevertheless, several Linux distributions build their own Lustre packages. Because most feature development takes place on Red Hat compatible distributions, this document focuses on working with a RHEL compatible distribution.
 <br>

SoyMimikyu: /* Installing CentOS 7 for Lustre under KVM with the without helper scripts */

2025-01-13T14:20:32Z

Installing CentOS 7 for Lustre under KVM with the without helper scripts

← Older revision		Revision as of 07:20, 13 January 2025
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	* Modifies the /etc/sudoers file to allow passwordless sudo to root.		* Modifies the /etc/sudoers file to allow passwordless sudo to root.
	* Sets the password for both the 'dev' and 'root' users to "seagate"		* Sets the password for both the 'dev' and 'root' users to "seagate"
	* Performs a minimal install of CentOS 7.8 while adding the packages needed to develop and debug Lustre.		* Performs a minimal install of CentOS 7.9 while adding the packages needed to develop and debug Lustre.
	* Creates a new repository entry for YUM that takes precedence over all others, from which to install Lustre.		* Creates a new repository entry for YUM that takes precedence over all others, from which to install Lustre.
	* Creates a several scripts in the root user's home directory to install and configure Lustre server and client nodes.		* Creates a several scripts in the root user's home directory to install and configure Lustre server and client nodes.

SoyMimikyu: /* Manual Install of CentOS 7 under KVM */

2025-01-13T14:14:52Z

Manual Install of CentOS 7 under KVM

← Older revision		Revision as of 07:14, 13 January 2025
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	#: --disk device=disk,path="$PWD/$VM_NAME-sys.raw",size=15,format=raw \		#: --disk device=disk,path="$PWD/$VM_NAME-sys.raw",size=15,format=raw \
	#: --disk device=disk,path="$PWD/$VM_NAME-data.raw",size=1,format=raw \		#: --disk device=disk,path="$PWD/$VM_NAME-data.raw",size=1,format=raw \
	#: --os-variant rhel7.8 \		#: --os-variant rhel7.9 \
	#: --location https://vault.centos.org/7.9.2009/isos/x86_64/ \		#: --location https://vault.centos.org/7.9.2009/isos/x86_64/ \
	#: --noautoconsole \		#: --noautoconsole \

SoyMimikyu: /* Virtualization and Operating System Selection */

2024-12-16T14:50:14Z

Virtualization and Operating System Selection

← Older revision		Revision as of 07:50, 16 December 2024
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	This guide uses KVM virtualization to create a very simple Lustre cluster. It also assumes that you have a working installation of qemu-kvm-1.5, virt-install, and qemu-kvm-tools-1.5 or later running on a host machine running RHEL-compatible Linux. Running a version of Linux that is compatible with RHEL 7 or RHEL 8 provides the best development platform for the purposes of this document. This document uses CentOS 7, a Red Hat Enterprise compatible distribution, to install Lustre.		This guide uses KVM virtualization to create a very simple Lustre cluster. It also assumes that you have a working installation of qemu-kvm-1.5, virt-install, and qemu-kvm-tools-1.5 or later running on a host machine running RHEL-compatible Linux. Running a version of Linux that is compatible with RHEL 7 or RHEL 8 provides the best development platform for the purposes of this document. This document uses CentOS 7, a Red Hat Enterprise compatible distribution, to install Lustre.

	For the purpose of this document, we will be using CentOS 7, a Red Hat Enterprise compatible distribution to install Lustre on. Rocky Linux 8.6 is a Red Hat 8 compatible distribution that can also be used.		For the purpose of this document, we will be using CentOS 7, a Red Hat Enterprise compatible distribution to install Lustre on. Rocky Linux 8 is a Red Hat 8 compatible distribution that can also be used.

	The repository for CentOS 7 for installation is available here:		The repository for CentOS 7 for installation is available here:

SoyMimikyu: /* The Kickstart file */

2024-12-16T14:49:54Z

The Kickstart file

← Older revision		Revision as of 07:49, 16 December 2024
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	* Sets the time zone to Denver Colorado		* Sets the time zone to Denver Colorado
	** You can find other valid locations in /usr/share/zoneinfo.		** You can find other valid locations in /usr/share/zoneinfo.
	* Boot straps the install from the CentOS mirror repository for version 7.8		* Boot straps the install from the CentOS mirror repository for version 7.9
	* Disables SELINUX (Secure Linux Features).		* Disables SELINUX (Secure Linux Features).
	** Lustre on SELINUX is not entirely straight forward to configure.		** Lustre on SELINUX is not entirely straight forward to configure.

SoyMimikyu: /* create.centos7vm.sh */

2024-12-16T14:47:18Z

create.centos7vm.sh

← Older revision		Revision as of 07:47, 16 December 2024
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	--disk device=disk,path="$DISK_PATH/$VM_NAME-sys.raw",size=$SYS_DISK_SIZE,format=raw \		--disk device=disk,path="$DISK_PATH/$VM_NAME-sys.raw",size=$SYS_DISK_SIZE,format=raw \
	--disk device=disk,path="$DISK_PATH/$VM_NAME-data.raw",size=$DATA_DISK_SIZE,format=raw \		--disk device=disk,path="$DISK_PATH/$VM_NAME-data.raw",size=$DATA_DISK_SIZE,format=raw \
	--os-variant rhel7.8 \		--os-variant rhel7.9 \
	--location "$BOOTSTRAP_URL" \		--location "$BOOTSTRAP_URL" \
	--noautoconsole \		--noautoconsole \

SoyMimikyu: /* create.centos7vm.sh */

2024-12-16T14:46:26Z

create.centos7vm.sh

← Older revision		Revision as of 07:46, 16 December 2024
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	#!/bin/sh		#!/bin/sh
	KICKSTART_FILE="$PWD/ks-base-centos7.cfg"		KICKSTART_FILE="$PWD/ks-base-centos7.cfg"
	BOOTSTRAP_URL="~~http~~://~~mirror~~.centos.org~~/centos~~/7.8/os/x86_64/"		BOOTSTRAP_URL="https://vault.centos.org/7.9.2009/isos/x86_64/"
	INSTALL_URL="~~http~~://~~mirror~~.centos.org~~/centos~~/7.8/os/x86_64/"		INSTALL_URL="https://vault.centos.org/7.9.2009/isos/x86_64/"
	VM_NAME=$1		VM_NAME=$1
	# Some default data disk sizes based on role (in gigabytes).		# Some default data disk sizes based on role (in gigabytes).

SoyMimikyu: /* ks-base-centos7.cfg */

2024-12-16T14:45:51Z

ks-base-centos7.cfg

← Older revision		Revision as of 07:45, 16 December 2024
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	priority=5		priority=5
	gpgcheck=0		gpgcheck=0

	[lustre_latest_el7_server]		[lustre_latest_el7_server]
	name=whamcloud_lustre_server		name=whamcloud_lustre_server
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	priority=5		priority=5
	gpgcheck=0		gpgcheck=0

	[e2fsprogs_latest]		[e2fsprogs_latest]
	name=whamcloud_e2fsprogs		name=whamcloud_e2fsprogs

SoyMimikyu: /* ks-base-centos7.cfg */

2024-12-16T14:45:12Z

ks-base-centos7.cfg

← Older revision		Revision as of 07:45, 16 December 2024
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	# Install from web server		# Install from web server
	url --url=https://~~mirrors~~.~~vcea~~.~~wsu.edu/centos~~/7.9.2009/isos/x86_64/		url --url=https://vault.centos.org/7.9.2009/isos/x86_64/

	# Disable Setup Agent on first boot		# Disable Setup Agent on first boot