Novell SP2 - RELEASE NOTES Release Note page 8

attributes. There are two time synchronization ports etr0 and etr1, which can be accessed via sysfs under:
/sys/devices/system/etr
• zSeries: Dynamic CHPID reconfiguration via SCLP: Allows to react to hardware changes and to
configure path for the LPAR from the Linux system. More info: Device Drivers, Features, and
Commands - SC33-8289-04, Chapter 2, Configuring a CHPID on LPAR and Chapter 32, chchp and
lschp.
• zSeries: skb scatter-gather support for large incoming messages: Improves network throughput and
reliability (avoid memory allocation failures in network subsystem) with large MTU sizes and jumbo
frames. In particular this renders HiperSockets highly available even for large messages.
• zSeries: FCP performance data collection - adapter statistics: Provides more hardware performance
metrics which are available from the FCP adapter on IBM System z9 and z10.
• zSeries: Support for Processor Degradation: Generates uevents for all CPUs if the CPU-capability
changes. This can happen e.g. because the CPUs are overheating. The CPU-capability can be read via:
/sys/devices/system/cpu/cpuN/capability. More info: Device Drivers, Features, and
Commands - SC33-8289-04, Chapter 2, CPU capability change.
• zSeries: Provide Linux process data into z/VM monitor stream: Allows to consolidate monitor data from
multiple z/VM guest with z/VM monitor tools. More info: Device Drivers, Features, and Commands
- SC33-8289-04, Chapters 4, 14, 15, 16 and 32 (mon_fsstatd and mon_procd).
• zSeries: z/VM unit record device driver: Allows to access the z/VM reader from a running Linux system,
useful for tasks like preparing the z/VM reader from Linux to install or to dump to the z/VM reader.
More info: Device Drivers, Features, and Commands - SC33-8289-04, Chapter 18. z/VM unit record
device driver.
• zSeries: STSI change for capacity provisioning: Make the permanent and temporary capacity
information as provided by the STSI instruction of the IBM System z10 available to user space via
/proc/sysinfo.
• zSeries: Hotplug daemon for CPU and memory management: New daemon in s390-tools 1.6.3 that
manages CPU- and memory-resources based on a set of rules. Depending on the workload CPUs can be
enabled or disabled. The amount of memory can be increased or decreased exploiting the Cooperative
Memory Management (CMM1) feature. See: man -a cpuplugd. More info: Device Drivers, Features,
and Commands - SC33-8411-00, Chapters 36 (cpuplugd - Activate CPUs and control memory Use).
• zSeries: HiperSockets MAC layer routing support: Enables Layer-2 support in HiperSockets, including
IPv6 for Layer-2, on the new z10 hardware. Note that connecting Layer-2 and Layer-3 hosts is not
supported. To use it, echo 1 > layer2 attribute before setting the HiperSockets device online.
• zSeries: Support two OSA ports per CHPID: Exploits the next OSA adapter generation offering two
ports within one CHPID, giving you four ports per card ("Four-port exploitation on OSA-Express3 GbE
SX and LX"). The additional port number 1 can be specified with the qeth sysfs-attribute "portno". More
info: Device Drivers, Features, and Commands - SC33-8411-00, Chapters 9 (Specifying the relative
port number).
• zSeries: In kernel and software Support for CP Assist Instructions AES & SHA: Enables the crypto
driver and library to exploit the new z10 hardware encryption providing performance enhancements for
AES-192, AES-256, SHA-384 and SHA-512.
• zSeries: Linux CPU Node Affinity: Improve performance of the system by scheduling processes to the
optimal node where the CPU is associated, exploiting the new z10 CPU node topology. More info:
Device Drivers, Features, and Commands - SC33-8411-00, Chapters 2 (Examining the CPU topology).
New Features
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