Provisioning Tiers - Revision history

Qadmin: Narrow the CLI substitution claim to the three commands verified on a live appliance (QSTOR-12352)

2026-09-03T06:40:50Z

Narrow the CLI substitution claim to the three commands verified on a live appliance (QSTOR-12352)

← Older revision		Revision as of 06:40, 3 September 2026
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	=== From the CLI ===		=== From the CLI ===

	~~Wherever~~ a command ~~takes a '''provisionable''~~' -- ~~the~~ <code>--~~pool~~</code> ~~argument of the~~ create and clone ~~commands~~ -- you may pass the '''name or UUID of a tier''' instead of a pool, and QuantaStor selects the pool:		Where a command's <code>--pool</code> argument identifies somewhere to allocate from -- <code>volume-create</code>, <code>share-create</code> and <code>volume-clone</code> -- you may pass the '''name or UUID of a tier''' instead of a pool, and QuantaStor selects the pool:

	<pre style="font-size: smaller">		<pre style="font-size: smaller">

Qadmin: Rewrite from the product: document the pool-selection algorithm (least over-provisioned with a 20-point volume-count tie-break, most-free-space fallback), all four tier dialogs and the volume-from-tier dialog, membership rules, CLI/REST surface and the Cinder integration; correct the claims that provisioning larger than the largest member pool fails and that any pool argument accepts a tier (QSTOR-12352)

2026-09-03T06:35:04Z

Rewrite from the product: document the pool-selection algorithm (least over-provisioned with a 20-point volume-count tie-break, most-free-space fallback), all four tier dialogs and the volume-from-tier dialog, membership rules, CLI/REST surface and the Cinder integration; correct the claims that provisioning larger than the largest member pool fails and that any pool argument accepts a tier (QSTOR-12352)

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Qadmin at 00:56, 6 December 2022

2022-12-06T00:56:30Z

← Older revision		Revision as of 00:56, 6 December 2022
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	[[Category:admin_guide]]		[[Category:admin_guide]]
	[[File:Create Storage Tier Web.jpg\|thumb\|512px\|Right click on a ''Storage Pool'' and select '''Create Storage Tier...'''.]]		[[File:Create Storage Tier Web 6.jpg\|thumb\|512px\|Right click on a ''Storage Pool'' and select '''Create Storage Tier...'''.]]

	Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:		Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:

Qadmin at 19:37, 10 February 2020

2020-02-10T19:37:35Z

← Older revision		Revision as of 19:37, 10 February 2020
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	All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.		All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.

	'''Navigation:''' Storage Management --> Storage Pools --> Create Storage Tier ''(rightclick)''		'''Navigation:''' Storage Management --> Storage Pools --> Create Storage Tier... ''(rightclick)''

	=== Over-provisioning with Storage Tiers ===		=== Over-provisioning with Storage Tiers ===

	Note that Storage Tiers provide a convenient grouping mechanism and intelligent placement but you cannot create a storage volume which is larger than the pool with the largest available free space in the Storage Tier. As an example, if you have three storage pools in your storage tier, Pool1 (10TB free), Pool2 (20TB free), Pool3 (4TB free) and you request allocation of a new Storage Volume which is 22TB the provisioning will fail because there are no pools available with that much free space. Note however that you could allocate 10x thin-provisioned storage volumes which are 6TB in size because newly thin-provisioned volumes use a negligible amount of space until data has been written to them. So Storage Tiers do provide support for over-provisioning storage pools with some limits.		Note that Storage Tiers provide a convenient grouping mechanism and intelligent placement but you cannot create a storage volume which is larger than the pool with the largest available free space in the Storage Tier. As an example, if you have three storage pools in your storage tier, Pool1 (10TB free), Pool2 (20TB free), Pool3 (4TB free) and you request allocation of a new Storage Volume which is 22TB the provisioning will fail because there are no pools available with that much free space. Note however that you could allocate 10x thin-provisioned storage volumes which are 6TB in size because newly thin-provisioned volumes use a negligible amount of space until data has been written to them. So Storage Tiers do provide support for over-provisioning storage pools with some limits.

Qadmin at 22:44, 8 January 2020

2020-01-08T22:44:51Z

← Older revision		Revision as of 22:44, 8 January 2020
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	[[Category:admin_guide]]		[[Category:admin_guide]]
	[[File:Create Storage Tier Web.jpg]]		[[File:Create Storage Tier Web.jpg\|thumb\|512px\|Right click on a ''Storage Pool'' and select '''Create Storage Tier...'''.]]

	Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:		Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:
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	All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.		All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.

			'''Navigation:''' Storage Management --> Storage Pools --> Create Storage Tier ''(rightclick)''

	=== Over-provisioning with Storage Tiers ===		=== Over-provisioning with Storage Tiers ===

	Note that Storage Tiers provide a convenient grouping mechanism and intelligent placement but you cannot create a storage volume which is larger than the pool with the largest available free space in the Storage Tier. As an example, if you have three storage pools in your storage tier, Pool1 (10TB free), Pool2 (20TB free), Pool3 (4TB free) and you request allocation of a new Storage Volume which is 22TB the provisioning will fail because there are no pools available with that much free space. Note however that you could allocate 10x thin-provisioned storage volumes which are 6TB in size because newly thin-provisioned volumes use a negligible amount of space until data has been written to them. So Storage Tiers do provide support for over-provisioning storage pools with some limits.		Note that Storage Tiers provide a convenient grouping mechanism and intelligent placement but you cannot create a storage volume which is larger than the pool with the largest available free space in the Storage Tier. As an example, if you have three storage pools in your storage tier, Pool1 (10TB free), Pool2 (20TB free), Pool3 (4TB free) and you request allocation of a new Storage Volume which is 22TB the provisioning will fail because there are no pools available with that much free space. Note however that you could allocate 10x thin-provisioned storage volumes which are 6TB in size because newly thin-provisioned volumes use a negligible amount of space until data has been written to them. So Storage Tiers do provide support for over-provisioning storage pools with some limits.

Qadmin at 22:42, 8 January 2020

2020-01-08T22:42:49Z

← Older revision		Revision as of 22:42, 8 January 2020
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	[[Category:admin_guide]]		[[Category:admin_guide]]
	[[File:Create Storage Tier ~~Menu~~.jpg~~\|thumb\|512px\|Right click on a ''Storage Pool'' and select '''Create Storage Tier...'''.~~]]		[[File:Create Storage Tier Web.jpg]]


	Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:		Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:

Qadmin at 19:17, 17 April 2019

2019-04-17T19:17:55Z

← Older revision		Revision as of 19:17, 17 April 2019
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	[[Category:admin_guide]]		[[Category:admin_guide]]
	[[File:Create Storage Tier Menu.jpg\|thumb\|512px]]		[[File:Create Storage Tier Menu.jpg\|thumb\|512px\|Right click on a ''Storage Pool'' and select '''Create Storage Tier...'''.]]

Qadmin at 19:16, 17 April 2019

2019-04-17T19:16:05Z

← Older revision		Revision as of 19:16, 17 April 2019
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	[[Category:admin_guide]]		[[Category:admin_guide]]
			[[File:Create Storage Tier Menu.jpg\|thumb\|512px]]


	Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:		Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:
	* Which Storage Pool has the most free space?		* Which Storage Pool has the most free space?
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	* Does the Storage Pool meet the IOPS and throughput requirements of my workload?		* Does the Storage Pool meet the IOPS and throughput requirements of my workload?
	When you create a Storage Tier you select one or more Storage Pools to associate it with and then set various attributes on the Storage Tier so that you provisioning system can make intelligent decisions about which Storage Tier to provision from based on the needs of the workload. Placement is automatic so you don't have to think about which storage pool within the storage tier the storage volume should be provisioned from.		When you create a Storage Tier you select one or more Storage Pools to associate it with and then set various attributes on the Storage Tier so that you provisioning system can make intelligent decisions about which Storage Tier to provision from based on the needs of the workload. Placement is automatic so you don't have to think about which storage pool within the storage tier the storage volume should be provisioned from.

	~~[[File:Create Storage Tier Menu.jpg]]~~

	All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.		All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.

Qadmin at 19:10, 17 April 2019

2019-04-17T19:10:55Z

← Older revision		Revision as of 19:10, 17 April 2019
Line 7:		Line 7:
	When you create a Storage Tier you select one or more Storage Pools to associate it with and then set various attributes on the Storage Tier so that you provisioning system can make intelligent decisions about which Storage Tier to provision from based on the needs of the workload. Placement is automatic so you don't have to think about which storage pool within the storage tier the storage volume should be provisioned from.		When you create a Storage Tier you select one or more Storage Pools to associate it with and then set various attributes on the Storage Tier so that you provisioning system can make intelligent decisions about which Storage Tier to provision from based on the needs of the workload. Placement is automatic so you don't have to think about which storage pool within the storage tier the storage volume should be provisioned from.

	[[File:~~Storagetier1~~.~~png~~]]		[[File:Create Storage Tier Menu.jpg]]

	All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.		All REST APIs and CLI commands which take a Storage Pool name or ID as an argument can have the pool identifier substituted with the name or ideally the UUID of a Storage Tier instead.

Qadmin at 14:30, 17 April 2019

2019-04-17T14:30:17Z

← Older revision		Revision as of 14:30, 17 April 2019
Line 1:		Line 1:
	[[Category:admin_guide]]		[[Category:admin_guide]]
	Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage ~~appliances~~ in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:		Storage Provisioning Tiers provide a way of grouping Storage Pools together for simplified provisioning from automated systems and frameworks like OpenStack Cinder. A common problem in cloud environments is that you may have many storage systems in a grid each with one or more storage pools. This creates a conundrum when you go to provision a Storage Volume or Network Share as several questions must be answered to find the ideal placement for your new volume or share including:
	* Which Storage Pool has the most free space?		* Which Storage Pool has the most free space?
	* Which Storage Pool has the least number of storage volumes in it?		* Which Storage Pool has the least number of storage volumes in it?