Centos 5 Product Specification

Rumi,
his page contains an overview on the capabilities and limits of CentOS.
End of Lifetime (EOL) Dates
CentOS41
CentOS5
CentOS6
Full Updates2
February 29th, 2009
Q1 2014
Q2 2017
Maintenance Updates3
February 29th, 2012
March 31st, 2017
November 30th, 2020
Architecture
CentOS4
CentOS5
CentOS6
Latest Release
4.9
5.8
6.3
Supports x86 Systems (32-bit Pentium, AMD, Via)
Yes
Yes
Yes4
Supports x86_64 systems (AMD64/EM64T)
Yes
Yes
Yes
Supports ia64 systems5 (Itanium2)
Yes
No6
No
Supports s390/s390x systems (IBM zSeries & IBM S/390)
Yes
No
No
Supports ppc/ppc64 systems (IBM Power, Mac)
Yes
No
No7
Supports SPARC systems (Sun SPARC processors)
Yes
No
No
Supports Alpha systems (DEC Alpha processors)
Yes
No
No
CPU / Memory / Filesystem limits (Tested/possible)8
CentOS4
CentOS5
CentOS6
Maximum logical CPUs9
x86
32
32
32
ia64
64/512
n/a
n/a
x86_64
64/64
64/255
160/4096
PPC
64/128
n/a
n/a
s390/S390x
8
n/a
n/a
SPARC
8/64
n/a
n/a
Alpha
8/64
n/a
n/a
Maximum memory
x8610
64GB
16GB11
16GB12
ia64
256GB/1024TB
n/a
n/a
x86_64
128GB/1TB
256GB/1TB
2TB/64TB
PPC
128GB/1TB
n/a
n/a
s390/S390x
64GB
n/a
n/a
SPARC
64GB
n/a
n/a
Alpha
64GB
n/a
n/a
Filesystem
Maximum filesize (ext3)
2TB
2TB
2TB
Maximum file system size (ext3)
8TB
16TB
16TB
Maximum filesize (ext4)
n/a
16TB
16TB
Maximum file system size (ext4) 13
n/a
1EB
1EB
Maximum boot LUN size (BIOS)
n/a
>2TB
>2TB
Maximum x86 per-process virtual address space
Approx 4GB
Approx 3GB14
Approx 3GB15
Maximum x86_64 per-process virtual address space
512GB
2TB
128TB
Recommended minimum requirements
CentOS4
CentOS5
CentOS6
x86
128M CLI/256M GUI
128M CLI/512M GUI per logical CPU
392M CLI/512M GUI per logical CPU16
other architectures
512M
512M
1GB
Minimum disk space
800M
1.2G
2GB
KVM-Virtualization
CentOS4
CentOS5
CentOS617
Maximum number of cores on host
N/A
160
160
Maximum memory on host
N/A
1TB
2TB
Maximum number of vCPUs in fully virtualized guest (x86/x86_64)
N/A
16/16
160/160
Maximum memory in fully virtualized guest (x86/x86_64)
N/A
512GB/512GB
2TB/2TB
Minimum memory in fully virtualized guest (x86/x86_64)
N/A
512MB/512MB
512MB/512MB18
OS features (Kernel, Server, Client, etc.)
CentOS4
CentOS5
CentOS6
Kernel foundation
Linux 2.6.9
Linux 2.6.18
Linux 2.6.32
Compiler/toolchain
GCC 3.4
GCC 3.4
GCC 4.4
Languages supported
15
19
22
SELinux
Yes
Yes
Yes
Ext3 Performance Enhancements
Yes
Yes
Yes
Bluetooth support
Yes
Yes
Yes
Native POSIX Threading Library (NPTL)
Yes
Yes
Yes
Hyperthreading scheduler
Yes
Yes
Yes
IPv6 support
n/a
Ready Logo Phase 219
Ready Logo Phase 2
Autofs V4
Yes
Yes
Yes
Logical Volume Manager (LVM)
Yes – LVM2
Yes – LVM2
Yes – LVM2
Auditing
Yes – audit
Yes – audit
Yes – audit
Compatibility libraries (toolchain)
Yes – CentOS 2 & CentOS 3
Yes – CentOS 3 & CentOS 4
Yes – CentOS 4 & CentOS 5
LSB support
Yes – 3
Yes – 4.0 20
Yes – 4.0
NFS
Yes – V3&V4
Yes – V3&V4
Yes
Web Server
httpd 2.0.52 (apache)
httpd 2.2.3 (apache)
httpd 2.2.15 (apache)
Server Message Block (SMB)
Samba-3.0.x
Samba-3.0.x (opt. 3.5.x)
Samba-3.5.x (opt. 4.0.x)
Database
MySQL 4.1.x, PostgreSQL 7.4.x
MySQL 5.0.x, PostgreSQL 8.1.x (opt. 8.4.x with postgresql84)
MySQL 5.1.x, PostgreSQL 8.4.x
Programming Languages
php 4.3.9, python 2.3, perl 5.8.5
php 5.1.6 (opt. 5.3.x since C5.6), python 2.4, perl 5.8.8
php 5.3.3, python 2.6.6, perl 5.10.1
Desktop GUI
Gnome 2.8, KDE 3.3
Gnome 2.16, KDE 3.5
Gnome 2.28, KDE 4.3
Graphics
X.org 6.8.2
X.org 7.1.1
X.org 7.4
Office Suite21
Openoffice – 1.1.5 (opt. 2.0.4)
Openoffice – 3.1.1 as of C5.8
Libreoffice22 3.4.5 starting with C6.3
Ximian Evolution
Yes – 2.0 (opt. 2.8)
Yes – 2.12
Yes – 2.28
Default browser23
Firefox 1.5.x
Firefox 3.x.x / Firefox 10
Firefox 3.6.x / Firefox 10
Multimedia capabilities
Yes (mp3 with add. repos)
Yes (mp3 with add. repos)
Yes (mp3 with add. repos)
Plug and Play
Yes
Yes
Yes
Other items (available seperately from CentOS)
CentOS4
CentOS5
CentOS6
Cluster Suite
Yes – 4
n/a (now included in base OS)
n/a (now included in base OS)
Global File System
Yes – 6.1
n/a (GFS2 now included in base OS)
n/a (GFS2 now included in base OS)
This page is created and maintained by ChristophGaluschka. Other Wiki contributors are invited to make corrections, additions, or modifications.
  • 1 CentOS4 has reached end-of-life. It is highly recommended to use CentOS5 or 6.
  • 2 During the Full Updates phase, new hardware support will be provided at the discretion of CentOS via Update Sets. Additionally, all available and qualified errata will be provided via Update Sets (or individually {and immediately} for Security level errata.) Update Sets normally will be released 2-3 times per year, with new ISOs released as part of each Update Set. In the x.y numbering scheme, the .y is the number of the Update Set.
  • 3 During the Maintenance updates phase, only Security errata and select mission critical bug fixes will be released. There will be few, if any, Update Sets released.
  • 5 Itanium2 only; the original Intel Itanium processor is not supported.
  • 6 Support is expected, development currently in progress.
  • 7 Beta expected for 6.3.
  • 8 Please note that limits for CentOS-4 are for CentOS-4.3 and later. CentOS-4.3 was released in April 2006. CPU counts over 8 (x86_64) or 64 (other architectures) require use of the largesmp kernel.
  • 9 Logical CPUs are equivalent to cores/virtualCPUs, so a dual-core (non-hyperthreading) CPU is counted as 2 logical CPUs and a single hyperthreading CPU is counted as 2 logical CPUs for purposes of calculating total CPUs.
  • 10 The "SMP" kernel supports a maximum of 16GB of main memory. Systems with more than 16GB of main memory use the "Hugemem" kernel. In certain workload scenarios it may be advantageous to use the "Hugemem" kernel on systems with more than 12GB of main memory.
  • 11 The x86 "Hugemem" kernel is not provided in CentOS 5.
  • 12 The x86 "Hugemem" kernel is not provided in CentOS 6.
  • 13 While 1EB is nominally supported under ext4, CentOS' upstream has not backported a needed patch to the ext4 tools permitting manipulating such partitions as of the update at CentOS 6.3. It is possible to use partitions created using third-party distributions' later e4fsprogs tools. General information upstream
  • 14 The x86 "Hugemem" kernel is not provided in CentOS 5.
  • 15 The x86 "Hugemem" kernel is not provided in CentOS 6.
  • 16 The initial 6.0 low end of a nominal 128M minimum is probably overly optimistic, even for a TUI install. Starting with the 6.1 point update of CentOS 6, dependency solving is a massive ram hog
  • 17 bootable p2v- and v2v-ISO-images are provided starting with 6.3, see also http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.3#head-2e2994dcc0edf71ebb47daa0b808b9d83f91f7b2
  • 18 Recommended in text mode, graphical modes required 1GB
  • 19 starting with CentOS 5.3
  • 20 Initially from CentOS 5.0 through 5.5, LSB version was 3.1. Upgraded to LSB 4.0 in CentOS 5.6
  • 21 Suite will be updated during lifecycle
  • 22 Openoffice is discontinued in 6.3
  • 23 Suite will be updated during lifecycle

Src: http://wiki.centos.org/About/Product

 
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