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  • Life always offers you a second chance ... Its called tomorrow !!!

    Wednesday, April 09, 2014

    What are the maximum and minimum limits for RHEL 4 vs 5 vs 6 ?

    Below chart shows you the comparison of various features of Red Hat Enterprise Linux between version 4, 5 and 6.


    Version 4
    Version 5
    Version 6
    Maximum Logical CPUs



    X86
    32
    32
    32
    Itanium 2
    256/512
    256/1024
    NA
    X86_64
    64/64
    160/255
    160/4096
    POWER
    64/128
    128/128
    128




    Maximum Memory



    X86
    64GB
    16GB
    16GB
    Itanium 2
    2TB
    2TB
    NA
    X86_64
    256GB/1TB
    1TB
    3TB/64TB
    POWER
    128GB/1TB
    512GB/1TB
    2TB




    Required Minimum



    X86
    256MB
    512MB minimum/1GB/logical CPU recommended
    512MB minimum/1GB/logical CPU recommended
    X86_64
    256MB
    512MB minimum/1GB/logical CPU recommended
    512MB minimum/1GB/logical CPU recommended
    Itanium 2
    512MB
    512MB minimum/1GB/logical CPU recommended
    NA
    POWER
    512MB
    1GB minimum/ 2GB recommended
    2GB minimum/ 2GB required per install
    Minimum Disk Space
    800MB
    1GB minimum/ 5GB recommended
    1GB minimum/ 5GB recommended



    File systems & storage limits



    Maximum filesize (Ext3)
    2TB
    2TB
    2TB
    Maximum filesystem size (Ext3)
    8TB
    16TB
    16TB
    Maximum filesize (Ext4)
    ---
    16TB
    16TB
    Maximum filesystem size (Ext4)
    ---
    1EB
    1EB
    Maximum filesize (GFS)
    16TB/8EB *
    16TB/8EB *
    NA
    Maximum filesystem size (GFS)
    16TB/8EB *
    16TB/8EB *
    NA
    Maximum filesize (GFS2)
    ---
    100TB
    100TB
    Maximum filesystem size (GFS2)
    ---
    100TB
    100TB
    Maximum filesize (XFS)
    ---
    100TB
    100TB
    Maximum filesystem size (XFS)
    ---
    100TB
    100TB




    Kernel and OS features



    Kernel foundation
    Linux 2.6.9
    Linux 2.6.18
    Linux 2.6.32-2.6.34
    Compiler
    GCC 3.4
    GCC 4.1
    GCC 4.4

    NOTE: * If there are any 32-bit machines in the cluster, the maximum gfs file system size is 16TB. If all machines in the cluster are 64-bit, the maximum size is 8EB




    Follow the below links for more tutorials

    Tutorial for Monitoring Tools SAR and KSAR with examples in Linux
    How to secure Apache web server in Linux using password (.htaccess)
    Red hat Enterprise Linux 5.5 Installation Guide (Screenshots)
    15 tips to enhance security of your Linux machine
    Why is Linux more secure than windows and any other OS
    How to log iptables messages in different log file

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