Chapter 6. Software support 147
Draft Document for Review April 7, 2004 6:15 pm 6947ch06.fm
30 logical partitions and two LCSSs. Support to further exploit z990 functions will be delivered
as an Open Source Contribution via:
http://www.software.ibm.com/developerworks/opensource/linux390
Commercial distributions of Linux on zSeries are available from Linux distributors, such as
Red Hat, SUSE, and TurboLinux. To learn more about distributor offerings, contact these
distributors through their representatives or through the following Web sites:
򐂰Red Hat
http://www.redhat.com
򐂰SUSE
http://www.suse.com
򐂰Turbolinux
http://www.turbolinux.com
z990 Exploitation support is also delivered by Developer Works. For details regarding
functions that are not yet available via distributor offerings, information on Linux support for
FCP, VLAN, IPv6, SNMP, TCP/IP Broadcast, Query ARP, and Purge ARP, refer to:
http://www.ibm.com/developerworks
For Linux support, visit the Web site:
http://www.software.ibm.com/developerworks/opensource/linux390
6.7 Summary of software requirements
The following tables provide summaries of software requirements for z990 functions and
features. Software requirements for the Cryptographic functions of the z990 are found in
Cryptography, paragraph “Software requirements” on page129.

6.7.1 Summary of z/OS and OS/390 software requirements

Table 6-2 Minimum z/OS and OS/390 Software Requirements
Software Requirements
Functions
z/OS
V1.6 az/OS
V1.5 z/OS
V1.4
Exploit
z/OS
V1.3 z/OS
V1.2 OS/390
V2.10
16 to 30 logical partitions X X X
Two Logical Channel Subsystems (LCSSs) X X X
Four Logical Channel Subsystems (LCSSs) X XbXb
Dynamic I/O support for multiple LCSSs X X X
Dynamic Add/Delete Logical Partition Name X
Extended Translation Facility X
zSeries Application Assist Processor (zAAP) Xc
24 processors within a single logical partition X
Internal spanned channels X X X X X
External spanned channels X X X