HP Tru64 UNIX and TruCluster Server Version 5.1B-5 Patch Summary and Release Notes (March 2009)

• Corrects a HSZ70 controller failover failure that generates the message "Logical
unit not ready, cause not reportable."
• Changes the way reservation-conflict errors are handled in a cluster.
• Prevents a potential panic that generates the message “memory_test=partial” or
“memory_test=none.”
• Corrects a problem in which certain older tape drives (such as the TZK50 and
TSV07) would produce only errors when they were accessed.
• Causes the AlphaServer GS1280 to accurately report and handle fatal memory
errors if the associated CPU is off line.
• Extends the hardware managers for CPU entries to include the attributes on a
GS1280 platform to include the CPU chip revision number and the cache size.
• Fixes a condition that causes hung I/Os in systems with multiple RADs.
• Updates the tu driver to support Ethernet Multicast addresses larger than 512,
which is necessary to support a large number of IPv6 addresses
• Corrects a problem that causes the command sysconfig -r hwc hwc_print=5 to
generate a kernel memory fault.
• Updates the alt driver to V2.0.20 to fix issues with IPv6, NFS performance, and
SNMP.
• Fixes an improper handling of domain, area, and fabric RSCNs (Registered State
Change Notifications) by the emx driver that results in the nondetection of path
failures to storage devices in the fabric."
• Fixes the reporting of device monitoring events and hardware errors during disk
recovery from the disk driver to the binary errlog.
• Corrects a problem that occurs with a device or bus reset during the execution of
a command to a media changer device, like a tape library, and causes the system
to panic with the message "PWS_CCB_QUE_REMOVE: ccb not on any list."
• Prevents a cluster panic when installing new RAID hardware before OS support
is installed on the cluster.
• Fixes a problem in which an I/O operation is prematurely treated as complete,
which can cause a panic in XPT or a storage driver.
• Improves error handling and I/O timing.
• Fixes hangs that can occur prior to disk spinups.
• Improves system recovery when media errors occur.
• Eliminates a condition that causes a panic to occur when removing sensors on a
ES47 system.
• Fixes a problem with HSG80 controllers due to bad count for persistent reservation
keys.
• Improves the performance of systems that perform heavy file I/O.
3.4 Summary of Base Operating System Patches 167