Product Documentation
Abstract
This document provides you with information about supported file systems, operating system patches, and supported layered software, as well as additional disk space requirements for platforms supported by IBM Rational ClearCase and ClearCase MultiSite (CC) 7.1.x.
Content
Hardware and software requirements
Required Operating System Patches
For additional system requirement details refer to:
Rational ClearCase System Requirements List |
See Change History for updates.
Supported file systems
Refer to technote 1516887 for information about supported file systems.
NFS support
For a given platform, IBM supports the NFS implementations that the platform supports.
If you use non-ClearCase access, see the IBM Rational ClearCase Administrator's Guide for a description of the limitations associated with use of NFS and potential workarounds.
Refer to technote 1409405 NFSv4 support and ClearCase for details regarding NFS version 4 support.
Hardware requirements
This section describes hardware requirements for installing and running the IBM Rational ClearCase and Rational ClearCase MultiSite software.
Component(s) | Processor | Memory/Disk | Network |
ClearCase server hosts | 2-4 CPU 128 processes on hosts running Linux or the UNIX system (Not applicable for Linux for IBM S/390 and zSeries) | 4-8GB RAM 80GB hard disk space 600 file descriptors per host (not per process) running Linux or the UNIX system | Wireless 802.11g Wired connectivity 100MB Full Duplex (recommended) |
Quad Core/CPU
| 8GB RAM 80GB hard disk space 600 file descriptors per host (not per process) running Linux or the UNIX system | Wired connectivity to other ClearCase Servers 100MB Full Duplex (Gigabit recommended) | |
ClearCase client hosts | 1.5GHz 32-bit (x86) or 64-bit (x64) processor
| RAM - 1GB (2GB recommended for Development machines) 40GB hard disk space | Wireless 802.11g Wired connectivity 100MB Full Duplex (recommended) |
CCRC RCP or Eclipse plug-in client hosts | 1.5GHz 32-bit (x86) or 64-bit (x64) processor | Wireless 802.11g Wired connectivity 100MB Full Duplex (recommended) |
Note: Processes and file descriptors per host running Linux or the UNIX system are set as kernel parameters.
Footnote 1: For more detailed configuration information refer to technote 1327082 CM Server configuration guidelines for CCRC in ClearCase version 7.1
Footnote 2: Additional ClearCase processes or servers located on this machine (such as license, registry, VOB, or others) will require additional resources.
Footnote 3: Additional disk space is required for the local copy area and is dependent upon the number of views created and the size of the files loaded.
Disk space requirements for individual hosts
Disk space requirements for individual hosts shows the disk space requirement for each type of installation. All the space must be contained in a single disk partition.
ClearCase 7.1.1.8 | ||
Platform | Client Features (MB) | All Features (MB) |
Windows 32-bit | 926 MB | 4.25 GB |
AIX | 577 MB | 3.13 GB |
Linux x86 | 1.47 GB | 3.96 GB |
ClearCase 7.1.2.5 | ||
Platform | Client Features (MB) | All Features (MB) |
Windows 32-bit | 717 MB | 4.1 GB |
HP IA | 716 MB | 3.96 GB |
Solaris SPARC (Sun5) | 1.9 GB | 4.7 GB |
In addition, any host that will have snapshot view directories needs enough disk space to contain all files loaded into the snapshot views and all view-private files added to the views. The amount of space required depends on the number and sizes of the files in the views.
Any host that will have VOB- or view-storage directories must have enough disk space to contain the files and databases used for storage of VOB- or view-storage directories. The amount of space required depends on the characteristics and use of the VOBs and views.
Basic software requirements
When installing ClearCase on Red Hat Enterprise Linux or SUSE Linux Enterprise Server, note that it may be necessary to have the kernel headers installed. Attempting to run the installation without the kernel headers installed could result in errors if precompiled MVFS modules are not available for the running kernel.
Required operating system patches
Typically, correct Rational ClearCase operation depends on your having installed a number of required or recommended operating system patches. These are available from your hardware vendor. The operating system patches are cumulative. Therefore, if you install a more recent patch, it will include the fix required for Rational ClearCase. See Table 5 for a list of patches recommended or required for all hosts on which Rational ClearCase software runs. There may also be required layered packages, as listed in Layered software packages.
In addition to the patches listed in Table 5, which fix problems known to affect ClearCase functionality, you may require other OS vendor patches to keep your systems functioning properly. Refer to the appropriate vendor web site for information on where to obtain these patches.
For information about Microsoft Windows service pack requirements, refer to technote 1302974.
If you use IBM Rational Rational ClearCase MultiSite, and you are upgrading from clearcase_p2003.06.00-13, or an earlier patch version, you must install the clearcase_p2003.06.00-21 or later user space patch version of Rational ClearCase on the ClearCase registry server machine before you install it on any other ClearCase machine. Failing to do so will result in runtime errors.
Rational ClearCase MultiSite has no known dependencies on operating system patches.
Patch number | Release | Purpose | Comments |
Patches for Solaris SPARC | |||
108727-06 or later | 8 | NFS patch | Required for Rational ClearCase servers that are NFS clients with NFS mounted VOB or view storage (typically using a NAS device). |
108434-17 | 8 | Solaris 8 32-bit shared library patch for C++ | |
109147-07 | 8 | SunOS 5.8 Linker patch | |
111711-11 | 9 | Solaris 9 32-bit shared library patch for C++ | |
112963-10 | 9 | SunOS 5.9 Linker patch | |
120664-01 | 10 | Solaris 10 library patch | Required for running the ClearCase Web and ClearCase Remote Client servers. |
Patches for Solarix X86 | |||
120665-01 | 10 | Solaris 10 library patch | Required for running the ClearCase Web and ClearCase Remote Client servers. |
Patches for HP-UX 11.31 (IA64 and PA-RISC) | |||
PHCO_42265 | Cumulative libc patch for 11.31 | Recommended for use on ClearCase 7.1.2.x and greater, there is a performance fix in the message catalog handling. | |
Bundle11i | 11.11 (11i version 1.0) | Required bundle of kernel header files, B11.11.0102.n | Required for all Rational ClearCase hosts. |
PHKL_24253 | 11.11 | kernel thread "nostop" patches | Required for all Rational ClearCase hosts. |
PHKL_24254 | 11.11 | ||
PHKL_24255 | 11.11 | ||
PHKL_24256 | 11.11 | ||
PHKL_24257 | 11.11 | ||
PHKL_42310 | 11.31 | Required when using Dynamic Views. | |
PHKL_37185 | 11.31 | Required to run with local VOBs or Views. | |
PHNE_28983 | ONC/NFS patch (part of kernel thread patch) | Required for all Rational ClearCase hosts. | |
DeviceIDs11i | 11.11i | Device ID enablement patch bundle | Recommended for all Rational ClearCase hosts. |
Patches for IBM AIX | |||
ML1 | 5.3 | Required for all Rational ClearCase hosts. | |
Patches for SuSE Linux Enterprise Server | |||
SP3
kernel 2.4.21 | 8 | Required for all Rational ClearCase hosts. |
Layered software packages
In some cases, correct Rational ClearCase processing requires installation of a layered software package. Before installing Rational ClearCase on a host, see Table 6 to determine whether you need to install such a package.
Host type | Package name | Description |
Solaris SPARC | SUNWsprot | SPARC compilers, bundled tools; includes default make.rules file |
SUNWbcp | Binary compatibility | |
SUNWscpr | Source compatibility, root | |
SUNWscpu | Source compatibility, user | |
SUNWmfrun | Motif Runtime kit to run Rational ClearCase GUIs | |
HP-UX 11 | Upgrade. UPG-TLINK | Compatibility links for file system |
11 X Window System: X11R6 (or later) | Window system |
Change History (click to expand) | |||||||||||||||||||||||||||||||||||||||||||
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Original Publication Date
16 December 2009
Related Information
Product Synonym
CC
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Document Information
Modified date:
17 June 2018
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