HP Tru64 UNIX and TruCluster Server Version 5.1.B-4 Patch Summary and Release Notes (13156)

If this value is not set for a LAN cluster with larger machines, the machines may run out of ports
for interconnect services. For more information, see the manual Tuning Tru64 UNIX for Internet
Servers.
4.2 Summary of TruCluster Server Software Patches
The following sections provide brief descriptions of the changes delivered in this patch kit and
in prior Version 5.1B patch kits for the TruCluster Server software products.
Each patch provides fixes to subsets of the operating system. Subset names (listed in italic font
in the following list) consist of three parts; for example, for subset TCRBASE540, the TCR indicates
that the subset is part of the TruCluster Server product, the BASE indicates a category, and the
540 indicates that the subset belongs to the Version 5.1B operating system.
4.2.1 New Patches
The patch summaries in this section describe changes to the TruCluster Server software products
that are new in this release.
Patch 27001.00
TCRBASE540
• Eliminates numerous panics and hung devices by fixing drd so it no longer accesses a device
that has a deletion pending or in progress.
• Fixes an RM simple lock timeout issue that may occur in noisy Memory channel rails.
• Enhances the error message generated when the clu_bdmgr command cannot access a
member boot disk.
• Fixes a configuration issue found in non-CAM devices and CD_ROM devices.
• Fixes the cause of potential cluster hangs during some Memory Channel hardware failures
that result in an MC rail failover.
• Fixes the CFS AIO write error path so the I/O completion steps are not repeated.
• Fixes a flaw in CFS file locking code that causes a "vrele: bad ref count" panic.
• Fixes the cause of an assertion failure in cfs_vnops.c.
• Corrects a problem in which the simultaneous booting of multiple nodes results in a panic
due to an unknown node in a remote member node list.
• Corrects a problem in a Memory Channel cluster in which a panic occurs in a booted member
when a booting member goes down because of panic/halt/shutdown.
• Fixes a problem in which a thread enters dio code while an extent map is being refreshed.
• Fixes a problem of v_numoutput not decremented for aio dio error paths.
• Removes the cause of a panic that may occur in CFS at boot time if a remote node goes down.
• Corrects several ICS signal-forwarding issues.
• Fixes a race between the close system call for a block device file and the recovery process
for the file system.
• Clarifies a usage message seen with the cfsstat command.
• Corrects a problem in clu_mibs daemon that can cause various eSNMP sub agents, such as
pmgrd and os_mibs, to terminate.
• Fixes a problem to prevent the relocation of UFS read/write file system to the original node.
• Provides new option to the mountd daemon to specify a port number for mountd to bind
to.
• Corrects a problem in which a DRD event thread may run infinitely while responding for
bid server transaction.
• Fixes and AdvFS domain panic caused by cfsd.
• Corrects a problem in CAA in which a resource does not fail over when two resources have
the same values for the FAILOVER_DELAY and REQUIRED_RESOURCES attributes.
4.2 Summary of TruCluster Server Software Patches 157