Bug 1044059

Summary: Fix references to ext4 as default filesystem in RHEL 7 to the right default, XFS
Product: Red Hat Enterprise Linux 7 Reporter: Jose Castillo <jcastillo>
Component: doc-Storage_Administration_GuideAssignee: Jacquelynn East <jeast>
Status: CLOSED CURRENTRELEASE QA Contact: ecs-bugs
Severity: unspecified Docs Contact:
Priority: urgent    
Version: 7.0CC: mgarski, rlandman
Target Milestone: rcKeywords: Documentation
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2014-06-20 02:43:04 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1061549, 1061924, 1061929, 1061930, 1061933, 1061944, 1061947, 1061948, 1061970, 1061971, 1061972, 1061973, 1061988, 1061989, 1061990, 1061991, 1061992, 1061993, 1061997, 1061998, 1062000, 1062001, 1062004, 1062005, 1062013    

Description Jose Castillo 2013-12-17 17:36:34 UTC 
Description of problem:

The Storage Administration Guide for RHEL 7 mentions that ext4 is the default filesystem in RHEL 6, but does not mention that in RHEL 7 XFS is the default one. 

The text says explicitly:

"ext4 Support
The ext4 file system is fully supported in this release. It is now the default file system of Red Hat Enterprise Linux 6, supporting an unlimited number of subdirectories. ..."

See: 

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/7-Beta/html/Storage_Administration_Guide/part-overvw.html#rhel6storage-whatsnew

Ideally, that should be:

"ext4 Support
The ext4 file system is fully supported in this release, supporting an unlimited number of subdirectories. ..."

And we should have an explicit paragraph in the same section (1.1) to introduce XFS, with a link to https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/7-Beta/html-single/Storage_Administration_Guide/index.html#ch-xfs entitled "The XFS File System".
Comment 1 Jose Castillo 2013-12-17 17:40:15 UTC 
Actually there is another place where we mention that ext4 is the default in RHEL 7, and it is in chapter 6: The Ext4 File System:

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/7-Beta/html-single/Storage_Administration_Guide/index.html#ch-ext4

"The ext4 file system is a scalable extension of the ext3 file system, which was the default file system of Red Hat Enterprise Linux 5. Ext4 is the default file system of Red Hat Enterprise Linux 7, and can support files and file systems larger than 16 terabytes in size, unlike Red Hat Enterprise Linux 6 which only supported up to 16 terabytes."

Ideally it should say:

"The ext4 file system is a scalable extension of the ext3 file system, which was the default file system of Red Hat Enterprise Linux 5. Ext4 can support files and file systems larger than 16 terabytes in size in Red Hat Enterprise Linux 7, unlike Red Hat Enterprise Linux 6 which only supported up to 16 terabytes. "