What is the difference between rhel 6 and rhel7

What is the difference between rhel 6 and rhel7

difference	rhel 6	RHEL 7
release date	10 NOV 2010	asdasd
OS boot time	40 sec	20 sec
Maximum size of single partition	50TB(EXT4)	500TB(XFS)
Boot loader	/boot/grub/grub.conf	/boot/grupb2/grub.cfg
Processor architecture	It support 32bit & 64bit both	It only support 64bit
How to format or assign a file system in	# mkfs.ext4 /dev/hda6	# mkfs.xfs /dev/hda6
How to repair a file system in	# fsck -y /dev/hda6	# xfs_repair /dev/hda6
Command to manage network	# setup	# nmtui
Host name configuration file	/etc/sysconfig/network	/etc/hostname
Default ISO image mount path	/media	/run/media/root
File system chek	e2fsck	xfs_repair
Resize a filesystem	# resize2fs -p /dev/vg00/lv1	# xfs_growfs /dev/vg00/lv1
Tune a filesystem	tune2fs	xfs_admin
IP tables and firewalls	iptables	firewalled
Communication between TCP and UDP in backend	netcat	ncat
Interface name	eth0	ens198(N)
Combining NIC	Network Bonding	Team Driver
NFS server version	NFSv2	NFSV4
Database used	Mysql	mariaDB
Managing services	#service sshd restart #chkconfig sshd on	#systemctl restart sshd #systemctl enable shhd
服务管理方式	sysV init	systemd
cgroup使用		默认都有自己的cgroup
文件结构