SUSE Linux Enterprise Server 10

System Requirements

Minimum Linux server system requirements for installation

• Local installation: 512 MB RAM, SSH-based network
• Graphical installation: 512 MB RAM, VNC-based network
• Installation via FTP: 512 MB RAM

Minimum Linux server system requirements for operation

• 512 MB RAM
• 750 MB hard disk space for software
• 750 MB hard disk space for user data

Recommended Linux server system requirements

• At least 512 MB RAM for Xen virtual host server
• At least additional 256 MB RAM per Xen virtual machine

Supported processor platforms

• AMD64
• IBM POWER
• IBM System z (64-bit)
• Intel 64
• Itanium Processor Family (Itanium II or newer)
• x86

Package Descriptions

Detailed descriptions of all packages included on SUSE® Linux Enterprise Server. Check the support site to see the list of supported packages.

SUSE Linux Enterprise Server 10 Service Pack 4 for x86

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SUSE Linux Enterprise Server 10 Service Pack 4 for x86_64

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SUSE Linux Enterprise Server 10 Service Pack 4 for Itanium

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SUSE Linux Enterprise Server 10 Service Pack 4 for Power

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SUSE Linux Enterprise Server 10 Service Pack 4 for System z

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SUSE Linux Enterprise Server 10 Service Pack 3 for x86

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SUSE Linux Enterprise Server 10 Service Pack 3 for x86_64

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SUSE Linux Enterprise Server 10 Service Pack 3 for Itanium

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SUSE Linux Enterprise Server 10 Service Pack 3 for Power

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SUSE Linux Enterprise Server 10 Service Pack 3 for System z

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SUSE Linux Enterprise Server 10 Service Pack 2 for x86

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SUSE Linux Enterprise Server 10 Service Pack 2 for AMD64 & Intel EM64T

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SUSE Linux Enterprise Server 10 Service Pack 2 for Intel Itanium Processor Family

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SUSE Linux Enterprise Server 10 Service Pack 2 for IBM PPC

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SUSE Linux Enterprise Server 10 Service Pack 2 for IBM zSeries

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SUSE Linux Enterprise Server 10 Service Pack 1 for x86

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SUSE Linux Enterprise Server 10 Service Pack 1 for AMD64 & Intel EM64T

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SUSE Linux Enterprise Server 10 Service Pack 1 for Intel Itanium Processor Family

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SUSE Linux Enterprise Server 10 Service Pack 1 for IBM PPC

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SUSE Linux Enterprise Server 10 Service Pack 1 for IBM zSeries

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SUSE Linux Enterprise Server 10 for x86

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SUSE Linux Enterprise Server 10 for AMD64 & Intel EM64T

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SUSE Linux Enterprise Server 10 for Intel Itanium Processor Family

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SUSE Linux Enterprise Server 10 for IBM PPC

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SUSE Linux Enterprise Server 10 for IBM zSeries

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Kernel Limits

This table summarizes the various limits which exist in our recent kernels and utilities (if related) for SUSE Linux Enterprise 10 Service Pack 3. This is Novell's award-winning family of Linux operating system products based on a common code base, including SUSE Linux Enterprise Server 10, SUSE Linux Enterprise Desktop 10, SUSE Linux Enterprise Real Time 10 and others.

φ = insufficient data

SLE 10 SP3 (2.6.16)	x86 (IA-32)	ia64 (Itanium)	x86_64 (AMD64/EM64T)	s390x (IBM System z)	ppc64 (IBM System p)
Kernel related items
CPU bits	32	64	64	64	64
max. # CPUs	32 (up to 128 with bigsmp kernel on certified systems)	up to 4096 (on certified SGI systems)	32 (up to 128 on certified systems)	64	128
max. RAM (theoretical / certified)	64/16 GiB	1 PiB/4 TiB	64 TiB/1 TiB	4 TiB/256 GiB	1 PiB/512 GiB
max. swap space	up to 32 * 64 GB
max. user-/kernelspace	3/1 GiB	2 EiB/φ	128 TiB/128 TiB	φ/φ	2 TiB/2 EiB
max. #processes	1048576
max. #threads per process	tested with more than 120000; maximum limit depends on memory and other parameters
max. size per block device	up to 16 TiB on 32-bit architectures, and up to 8 EiB on 64-bit architectures
Filesystem related items
max. filesystem size	ext2/3: 16 TiB (244 bytes) nfs v2: 8 EiB (263 bytes) nfs v3: 8 EiB (263 bytes) nfs v4: 8 EiB (263 bytes) reiserfs: 16 TiB (244 bytes) xfs: 8 EiB (263 bytes) ocfs2: 16 TiB (244 bytes)
max. file size	ext2/3: 2 TiB (241 bytes) jfs: 8 EiB (263 bytes) nfs v2: 2 GiB (231 bytes) nfs v3: 8 EiB (263 bytes) reiserfs: 2 TiB (241 bytes) xfs: 8 EiB (263 bytes) ocfs2: 1 EiB (260 bytes)

Remarks:

• The maximum file size above can be larger than the filesystem's actual size due to usage of sparse blocks. It should also be noted that unless a filesystem comes with large file support (LFS), the maximum file size on a 32-bit system is 2 GiB (2³¹ bytes). Currently all of our standard filesystems (including ext3 and ReiserFS) have LFS, which gives a maximum file size of 2⁶³ bytes in theory. The numbers given in the above table assume that the filesystems are using 4 KiB block size. When using different block sizes, the results are different, but 4 KiB reflects the most common standard.
• The rationale for the use of theoretical vs. certified in the following tables is as follows: theoretical means that's what should work, at least theoretically, while certified describes something which Novell and our Partners have tested and certified to work on existing machines in real life scenarios. With this explanation, the values for the x86, i.e. 32-bit bigsmp kernels should have been 64 GiB in the first place, but everyone knows that would just be too theoretical as it doesn't really work (and if it did in older kernels, only for very special configurations and workloads).
• In this document: 1024 Bytes = 1 KiB; 1024 KiB = 1 MiB; 1024 MiB = 1 GiB; 1024 GiB = 1 TiB; 1024 TiB = 1 PiB; 1024 PiB = 1 EiB (see also http://physics.nist.gov/cuu/Units/binary.html)

File System Support

SUSE Linux Enterprise was the first enterprise Linux distribution to support journaling filesystems and logical volume managers back in 2000. Today, we have customers running XFS and ReiserFS with more than 8TiB in one filesystem, and also the SUSE Linux Enterprise engineering team is using our 3 major Linux journaling filesystems for all their servers.

We recommend using XFS especially for large-scale filesystems, e.g. in terms of fileserving (like with Samba, NFS, etc.)

Features and limits of the various filesystems;
(In this table "+" means "available/supported", "-" is "unsupported")

Feature Group	Feature	Ext 3	Reiserfs 3.6	XFS
Journaling	Journaling: Data/Metadata	+/+	-/+	-/+
	Journal-Replay Kernel/Userspace	+/+	+/-	+/-
	Journal internal/external	+/+	+/-	+/+
Internal Structures	Inode-Allocation-Map	table	unified B*-tree	B+-tree
	Dynamic Inode-Allocation-Map	-	+	+
	Block Allocation Map	table	unified B*-tree	B+-trees
	Extents	-	-	+
	Inode Inline Data	+ (sym-links	+	+
	Sparse Files	+	- (bad)	+
	Tail Packing	-	+	-
	Defrag	+ (unstable)	(unnecessary)	+
Resizing	Offline extend/shrink	+/+	+/+	-/-
	Online extend/shrink	-/-	+/-	+/-
ACLs, Quotas, ...	Extended Attributes/Posix-ACLs (SUSE)	+/+	+/+	+/+
	32	64	64	64
	Quotas (SUSE)	+	+	+
	Dump/Restore	+	-	+
Sizes/Limits	Blocksize(s): (range) default	(1,2,4 KiB) 4KiB	(up to 64 KiB) 4KiB	(up to 64 KiB) 4 KiB
	max. FS-size	16 TiB	16 TiB	8 EiB
	max. File-size	2 TiB	2 TiB	8 EiB