Using mdb to View Process Stack

Jay Danielsen recently encountered a situation where the Solaris pstack command could not be used to view the process stack. Although he admits it was not as convenient, mdb proved to be powerful and worked. Check out his Solaris tip of the week.

Interrupt Resource Management Feature

Scott Carter explains Solaris Interrupt Resource Management (IRM), which optimizes the use of interrupt vectors to improve IO performance, in a BigAdmin tech tip. This feature is available in OpenSolaris build 107, and is scheduled to be in the Solaris 10 10/09 Operating System for SPARC platforms.

Solaris Release Naming Matrix

BigAdmin has published all the official names of Solaris and the unofficial ones in a list that maps the various upgrade levels to release levels for the Solaris OS. See the Solaris Information Center: Release Naming to view.

Logical Domains 1.2 Documentation Collection

LDoms Version 2.1 provides new features and multiple bug fixes. This version is supported on the OpenSolaris 2009.06 release, Solaris 10 05/09 and earlier Solaris 10 patched versions. The Logical Domains 1.2 Docs Collection includes the Software Administration Guide, Release Notes and Reference Manual.

Manage ZFS Snapshots (daily, weekly, monthly, yearly)

This script creates a snapshot of the given ZFS filesystem and keeps a limited number of daily, weekly, monthly, yearly snapshots by deleting some old ones.

Solaris Multimedia

Murray Blakeman's site Solaris Multimedia offers an IPS repository with much of the popular multimedia tools for the Solaris community. If interested, it is advised that users first read his 2009.06 Multimedia Repository post on how to most effectively use it.

Performance Visualization with Perfbar on Solaris

Tom Duell reports that perfbar 1.2 has been significantly enhanced to display more than 128 virtual processors and extends the capabilities and flexibility of the tool designed for Solaris performance engineers.

Solaris Crash Analysis Tool 5.2

The Solaris Crash Analysis Tool provides a friendly environment for quickly analyzing Solaris system crash dumps. In release 5.2, support for Solaris 2.6 and up through OpenSolaris is included for SPARC-based systems, while Solaris 10 and OpenSolaris is supported for x86/x64 systems. Of course, the system hardware architecture needs to match the crash dump (SPARC-on-SPARC and x86/x64-on-x86/x64.)

Perl 5.10.1 with DTrace Support

The Install file of the Release Candidate 1 for Perl 5.10.1 states: On platforms where DTrace is available, it may be enabled by using the -Dusedtrace option to Configure. DTrace probes are available for subroutine entry (sub-entry) and subroutine exit (sub-exit). Here's a simple D script that uses them. Joerg Moellenkamp reports, "Looks like Perl will have integrated dtrace support soon."

Replication of an Entire ZFS Storage Pool

In his blog entry "Is it possible to replicate an entire zpool with AVS?", James Dunham writes that all of the volumes contained in a single ZFS storage pool need to be configured into their own SNDR replica. He presents examples using sndradm -E and sndradm -e.

The Solaris Boot Process

The boot process loads the binary kernel from a bootable system disk into physical memory, initializes the kernel structure, sets system tunable parameters, starts system processes and brings the system to a known, usable state, writes Amrita Sadhukihan, who offers the basic steps of booting. Addressed in the piece are OpenBoot PROM. [...read more...]

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