Raid Administration - Revision history

Zcrayfish: Update wikilink.

2024-01-12T09:07:14Z

Update wikilink.

← Older revision		Revision as of 09:07, 12 January 2024
Line 6:		Line 6:

	For the purposes of this example, we will create a [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] array across /dev/sda and /dev/sdb using the <code>setup-alpine</code> script (more specifically the [[Alpine Setup Scripts#RAID\|setup-disk script]]) and then add /dev/sdc to the array after installation. This will add it as a hot spare which will be used if one of the other drives becomes degraded. Alternatively, the drive can immediately be added to the RAID array (as explained in the optional steps).		For the purposes of this example, we will create a [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] array across /dev/sda and /dev/sdb using the <code>setup-alpine</code> script (more specifically the [[Alpine Setup Scripts#RAID\|setup-disk script]]) and then add /dev/sdc to the array after installation. This will add it as a hot spare which will be used if one of the other drives becomes degraded. Alternatively, the drive can immediately be added to the RAID array (as explained in the optional steps).
	The instructions in this article should work regardless of whether you are using [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] or [https://en.wikipedia.org/wiki/RAID#RAID_5 RAID 5] and whether you have [[Setting up disks manually\|setup your disks manually]] or with the [[~~Install to disk~~\|setup script]], unless stated otherwise.		The instructions in this article should work regardless of whether you are using [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] or [https://en.wikipedia.org/wiki/RAID#RAID_5 RAID 5] and whether you have [[Setting up disks manually\|setup your disks manually]] or with the [[Alpine setup scripts\|setup script]], unless stated otherwise.

	In this example /dev/sda, /dev/sdb and /dev/sdc are all virtual 2GB disks on a VMware machine (it doesn't matter that it's a VM, the same process applies to a real machine with physical disks of larger sizes).		In this example /dev/sda, /dev/sdb and /dev/sdc are all virtual 2GB disks on a VMware machine (it doesn't matter that it's a VM, the same process applies to a real machine with physical disks of larger sizes).

Zcrayfish: Only meant to remove one. Oops.

2023-09-03T09:59:33Z

Only meant to remove one. Oops.

← Older revision		Revision as of 09:59, 3 September 2023
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	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[Setting up a software RAID array\|2]], [[Setting up a /var partition on software IDE raid1\|3]], [[Setting up disks manually\|4]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[Setting up a software RAID array\|2]], [[Linux iSCSI Target (TCM)\|3]] [[Setting up a /var partition on software IDE raid1\|4]], [[Setting up disks manually\|5]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.

Zcrayfish: Removed reference to obsolete wiki page.

2023-09-03T09:58:26Z

Removed reference to obsolete wiki page.

← Older revision		Revision as of 09:58, 3 September 2023
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1~~]], [[High performance SCST iSCSI Target on Linux software Raid\|2~~]], [[Setting up a software RAID array\|3]], [[Setting up a /var partition on software IDE raid1\|4]], [[Setting up disks manually\|5]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[Setting up a software RAID array\|2]], [[Setting up a /var partition on software IDE raid1\|3]], [[Setting up disks manually\|4]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.

Zcrayfish: Removed reference to obsolete wiki page.

2023-09-03T09:57:28Z

Removed reference to obsolete wiki page.

← Older revision		Revision as of 09:57, 3 September 2023
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2~~]], [[Linux iSCSI Target (TCM)\|3~~]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Setting up a software RAID array\|3]], [[Setting up a /var partition on software IDE raid1\|4]], [[Setting up disks manually\|5]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.

Sertonix: remove reference to deleted article

2023-08-25T22:20:17Z

remove reference to deleted article

← Older revision		Revision as of 22:20, 25 August 2023
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6~~]], [[Ensuring that /var is correctly mounted on HDD\|7~~]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.

Sertonix: use https

2023-08-25T21:30:23Z

use https

← Older revision		Revision as of 21:30, 25 August 2023
Line 143:		Line 143:
	== Further information ==		== Further information ==

	[~~http~~://linux.die.net/man/8/mdadm man mdadm]		[https://linux.die.net/man/8/mdadm man mdadm]

	[https://en.wikipedia.org/wiki/RAID RAID on wikipedia]		[https://en.wikipedia.org/wiki/RAID RAID on wikipedia]

Bt129: /* Introduction */

2021-07-01T08:24:21Z

Introduction

← Older revision		Revision as of 08:24, 1 July 2021
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to ~~various~~ degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to varying degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, ~~also known as~~ ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, named ''md'', after the controlling process, which is controlled by the <code>mdadm</code> command.

	For the purposes of this example, we will create a [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] array across /dev/sda and /dev/sdb using the <code>setup-alpine</code> script (more specifically the [[Alpine Setup Scripts#RAID\|setup-disk script]]) and then add /dev/sdc to the array after installation. This will add it as a hot spare which will be used if one of the other drives becomes degraded. Alternatively the drive can immediately be added to the RAID array (as explained in the optional steps).		For the purposes of this example, we will create a [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] array across /dev/sda and /dev/sdb using the <code>setup-alpine</code> script (more specifically the [[Alpine Setup Scripts#RAID\|setup-disk script]]) and then add /dev/sdc to the array after installation. This will add it as a hot spare which will be used if one of the other drives becomes degraded. Alternatively, the drive can immediately be added to the RAID array (as explained in the optional steps).
	The instructions in this article should work regardless of whether you are using [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] or [https://en.wikipedia.org/wiki/RAID#RAID_5 RAID 5] and whether you have [[Setting up disks manually\|setup your disks manually]] or with the [[Install to disk\|setup script]], unless stated otherwise.		The instructions in this article should work regardless of whether you are using [https://en.wikipedia.org/wiki/RAID#RAID_1 RAID 1] or [https://en.wikipedia.org/wiki/RAID#RAID_5 RAID 5] and whether you have [[Setting up disks manually\|setup your disks manually]] or with the [[Install to disk\|setup script]], unless stated otherwise.

	In this example /dev/sda, /dev/sdb and /dev/sdc are all virtual 2GB disks on a VMware machine (it doesn't matter that it's a VM, the same process applies to a real machine with physical disks of larger sizes).		In this example /dev/sda, /dev/sdb and /dev/sdc are all virtual 2GB disks on a VMware machine (it doesn't matter that it's a VM, the same process applies to a real machine with physical disks of larger sizes).

	In our example, all disks are available (present) at the time of installation, however /dev/sdc could be added at a later time~~; this~~ has no impact on the procedure described other than having to physically add the disk.		In our example, all disks are available (present) at the time of installation, however /dev/sdc could be added at a later time. That has no impact on the procedure described other than having to physically add the disk.

	== Initial setup ==		== Initial setup ==

Dubiousjim: Re-Re-Fix "Setting up...RAID1" link

2015-01-20T14:44:08Z

Re-Re-Fix "Setting up...RAID1" link

← Older revision		Revision as of 14:44, 20 January 2015
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software ~~RAID1~~ array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.

Dubiousjim: Add Category:Storage

2015-01-20T14:41:46Z

Add Category:Storage

← Older revision		Revision as of 14:41, 20 January 2015
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software ~~RAID~~ array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID1 array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.
Line 148:		Line 148:

	[https://raid.wiki.kernel.org/index.php/Linux_Raid Linux RAID wiki at kernel.org]		[https://raid.wiki.kernel.org/index.php/Linux_Raid Linux RAID wiki at kernel.org]

			[[Category:Storage]]

Dubiousjim: /* Introduction */ Fix "Setting up...RAID1" link

2015-01-20T14:40:24Z

Introduction: Fix "Setting up...RAID1" link

← Older revision		Revision as of 14:40, 20 January 2015
Line 1:		Line 1:
	== Introduction ==		== Introduction ==

	Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software ~~RAID1~~ array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.		Whilst there are articles on RAID installation (see [[ISCSI Raid and Clustered File Systems\|1]], [[High performance SCST iSCSI Target on Linux software Raid\|2]], [[Linux iSCSI Target (TCM)\|3]], [[Setting up a software RAID array\|4]], [[Setting up a /var partition on software IDE raid1\|5]], [[Setting up disks manually\|6]], [[Ensuring that /var is correctly mounted on HDD\|7]] for example) to various degrees, this article is designed to provide practical information on RAID administration, regardless of RAID type used or installation method.

	This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.		This article is of course using linux software RAID, also known as ''md'' after the controlling process, which is controlled by the <code>mdadm</code> command.