System information

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. It also features more granular
timestamping, extended attributes support, and quota journaling. For more information on ext4, refer
to Chapter 6, The Ext4 File System.
Network Block Storage
Fibre-channel over Ethernet is now supported. This allows a fibre-channel interface to use 10-Gigabit
Ethernet networks while preserving the fibre-channel protocol. For instructions on how to set this up,
refer to Section 25.7, “ Configuring a Fibre-Channel Over Ethernet Interface” .
[1] This feature is b eing p ro vid ed in this releas e as a technology preview. Techno lo g y Preview features
are currently no t sup p o rted und er Red Hat Enterp rise Linux sub scrip tio n s ervices, may no t b e
func tio nally co mp lete, and are g enerally no t suitab le fo r p ro d uc tio n use. Ho wever, thes e features are
includ ed as a c usto mer co nvenienc e and to p ro vid e the feature with wid er exp o sure.
Yo u are free to p ro vid e feed b ack and functio nality sug g estio ns fo r a techno lo g y p review feature b efo re
it b ec o mes fully s up p o rted . Erratas will b e p ro vid ed fo r hig h-severity s ecurity is s ues .
Net work Block St orage
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