Bug 518557

Summary:	Remove slightly misleading term "storage virtualization" from LVM overview description
Product:	Red Hat Enterprise Linux 5	Reporter:	Steven J. Levine <slevine>
Component:	Documentation-cluster	Assignee:	Steven J. Levine <slevine>
Status:	CLOSED NOTABUG	QA Contact:	Content Services Development <ecs-dev-list>
Severity:	low	Docs Contact:
Priority:	low
Version:	5.4	CC:	cluster-maint, edamato
Target Milestone:	rc	Keywords:	Documentation
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-09-03 16:50:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Steven J. Levine 2009-08-20 21:34:40 UTC

Description of problem:
As per a discussion on IRC: The term "storage virtualization" in the introductory section of the LVM manual is a little bit misleading -- the term is usually used for other sorts of products than volume managers (such as fibrechannel based infrastructures). There's probably no need to use that term in the overview.

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Comment 1 Steven J. Levine 2009-08-21 16:05:16 UTC

Removing the sentence about "storage virtualization" turned out to be trivial and did not affect the meaning of the introductory material at all. This is how the first two paragraphs of the LVM manual reads currently:
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Volume management creates a layer of abstraction over physical storage, allowing you to create logical storage volumes. This provides much greater flexibility in a number of ways than using physical storage directly.

A logical volume provides storage virtualization. With a logical volume, you are not restricted to physical disk sizes. In addition, the hardware storage configuration is hidden from the software so it can be resized and moved without stopping applications or unmounting file systems. This can reduce operational costs. 
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For RHEL 5.4 and later, it will say this, as one paragraph:

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Volume management creates a layer of abstraction over physical storage, allowing you to create logical storage volumes. This provides much greater flexibility in a number of ways than using physical storage directly. With a logical volume, you are not restricted to physical disk sizes. In addition, the hardware storage configuration is hidden from the software so it can be resized and moved without stopping applications or unmounting file systems. This can reduce operational costs. 
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It's still a little bit marketing-focused, but I don't think we lost any meaning.

Comment 2 Steven J. Levine 2009-09-03 16:50:24 UTC

With the release of RHEL 5.4, I am closing this bug.