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  • 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



    Deepak Prasad

    is a techie and an author who is still trying to survive in this IT generation with very little knowledge he has on Linux/Unix, VMware, SAN Storage, Automation, networking etc

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    What are the maximum and minimum limits for RHEL 4 vs 5 vs 6 ? What are the maximum and minimum limits for RHEL 4 vs 5 vs 6 ? Reviewed by Deepak Prasad on Wednesday, April 09, 2014 Rating: 5

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