Create RAID in LMCE - Revision history

Mcefan at 05:15, 9 October 2012

2012-10-09T05:15:21Z

←Older revision		Revision as of 05:15, 9 October 2012
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	\| __TOC__		\| __TOC__
	\|}		\|}
	[[Category: Tutorials]]		[[Category: Tutorials\|RAID]]
	[[Category: Storage]]		[[Category: Storage]]
	[[Category: Admin Website]]		[[Category: Admin Website]]

Dirk: Versioninfo update

2012-03-13T22:39:33Z

Versioninfo update

←Older revision		Revision as of 22:39, 13 March 2012
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	{{Versioninfo}}		{{Versioninfo\|1004Status=Works with hotfix\|1004UpdatedDate=13th Mar 2012\|1004UpdatedBy=[[User:Dirk\|Dirk]]\|}}
	{\| align="right"		{\| align="right"
	\| __TOC__		\| __TOC__

Dirk: temporary hotfix for 10.04

2012-03-13T22:33:42Z

temporary hotfix for 10.04

←Older revision		Revision as of 22:33, 13 March 2012
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	# Choose the disk drives you want to include in the RAID, by selecting the available ones from the drive list. The list contains only the disks that there are not used. Also you have the option to add spare disks.		# Choose the disk drives you want to include in the RAID, by selecting the available ones from the drive list. The list contains only the disks that there are not used. Also you have the option to add spare disks.
	# When you have finished adding your disks, press the ‘Create RAID array’ button, to re-write your data in the desired pattern. You will see your RAID created in the list and you will be able to access the advanced configuration page, to add new drives, or to delete it.		# When you have finished adding your disks, press the ‘Create RAID array’ button, to re-write your data in the desired pattern. You will see your RAID created in the list and you will be able to access the advanced configuration page, to add new drives, or to delete it.
			# In <b>10.04</b>, at the moment, a manual fix <b>before reboot</b> seems necessary: sudo mdadm --detail --scan >> /etc/mdadm/mdadm.conf

	Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.		Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.

Wierdbeard65 at 16:44, 11 May 2010

2010-05-11T16:44:35Z

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Wierdbeard65 at 16:44, 11 May 2010

2010-05-11T16:44:00Z

←Older revision		Revision as of 16:44, 11 May 2010
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			{versioninfo}
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Rwilson131: added images and category

2008-12-06T14:59:47Z

added images and category

←Older revision		Revision as of 14:59, 6 December 2008
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			[[Category: Tutorials]]
			[[Category: Storage]]
			[[Category: Admin Website]]
	== Introduction ==		== Introduction ==
	RAID (<b>R</b>edundant <b>A</b>rray of <b>I</b>ndependent <b>D</b>rives) refers to a data storage scheme which has as a benefit increase of the data integrity, fault-tolerance, throughput and/or capacity		RAID (<b>R</b>edundant <b>A</b>rray of <b>I</b>ndependent <b>D</b>rives) refers to a data storage scheme which has as a benefit increase of the data integrity, fault-tolerance, throughput and/or capacity
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	* The array will have data loss in the event of a second drive failure and is vulnerable until the data that was on the failed drive is rebuilt onto a replacement drive		* The array will have data loss in the event of a second drive failure and is vulnerable until the data that was on the failed drive is rebuilt onto a replacement drive
	== Creating RAID ==		== Creating RAID ==
	# Go to ~~LMCE~~'~~s admin web page at~~ Advanced->Configuration->RAID ~~section.~~		[[Image:AdvancedRaid.jpeg]]
			# Go to '''[[LinuxMCE Admin Website]]-->Advanced->Configuration->[[RAID]]'''
	## Specify the computer that should hold the RAID in the <i>Parent</i> section.		## Specify the computer that should hold the RAID in the <i>Parent</i> section.
	## Give a <i>Description</i> to the Raid you’re creating.		## Give a <i>Description</i> to the Raid you’re creating.
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	# When you have finished adding your disks, press the ‘Create RAID array’ button, to re-write your data in the desired pattern. You will see your RAID created in the list and you will be able to access the advanced configuration page, to add new drives, or to delete it.		# When you have finished adding your disks, press the ‘Create RAID array’ button, to re-write your data in the desired pattern. You will see your RAID created in the list and you will be able to access the advanced configuration page, to add new drives, or to delete it.
	Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.		Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.
	~~[[Category: Tutorials]][[Category: Storage]]~~
	== Troubleshooting ==		== Troubleshooting ==
	#If the array keeps coming back as failed, try stopping non-existant RAID devices:		#If the array keeps coming back as failed, try stopping non-existant RAID devices:

Rdmustang: /* Troubleshooting */

2008-08-16T03:28:12Z

Troubleshooting

←Older revision		Revision as of 03:28, 16 August 2008
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	## sudo mdadm --stop /dev/md0		## sudo mdadm --stop /dev/md0
	## sudo mdadm --stop /dev/md1		## sudo mdadm --stop /dev/md1
	#~~You may also have to~~ ssh in ~~and~~ delete any ~~existing~~ partitions ~~manually~~ using fdisk.		#If you continue having problems then try ssh'ing in, delete any partitions using fdisk, reboot and try again.

Rdmustang: /* Troubleshooting */

2008-08-16T03:27:36Z

Troubleshooting

←Older revision		Revision as of 03:27, 16 August 2008
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	[[Category: Tutorials]][[Category: Storage]]		[[Category: Tutorials]][[Category: Storage]]
	== Troubleshooting ==		== Troubleshooting ==
	If the array keeps coming back as failed, try stopping non-existant RAID devices:		#If the array keeps coming back as failed, try stopping non-existant RAID devices:
	# sudo mdadm --stop /dev/md0		## sudo mdadm --stop /dev/md0
	# sudo mdadm --stop /dev/md1		## sudo mdadm --stop /dev/md1
	You may also have to ssh in and delete any existing partitions manually using fdisk.		#You may also have to ssh in and delete any existing partitions manually using fdisk.

Rdmustang: /* Troubleshooting */

2008-08-16T03:27:17Z

Troubleshooting

←Older revision		Revision as of 03:27, 16 August 2008
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	# sudo mdadm --stop /dev/md0		# sudo mdadm --stop /dev/md0
	# sudo mdadm --stop /dev/md1		# sudo mdadm --stop /dev/md1
			You may also have to ssh in and delete any existing partitions manually using fdisk.

Rdmustang: /* Creating RAID */

2008-08-16T03:26:41Z

Creating RAID

←Older revision		Revision as of 03:26, 16 August 2008
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	Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.		Note: This is a totally software RAID, you don’t need to activate the RAID in your BIOS.
	[[Category: Tutorials]][[Category: Storage]]		[[Category: Tutorials]][[Category: Storage]]
			== Troubleshooting ==
			If the array keeps coming back as failed, try stopping non-existant RAID devices:
			# sudo mdadm --stop /dev/md0
			# sudo mdadm --stop /dev/md1