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Solaris Feed

Oracle Solaris, Solaris 10, Solaris 11 Express, Solaris 11, Oracle VM for SPARC and Illumos resources, news, and support articles.

inittab

he /etc/inittab file plays a crucial role in the boot sequence.

For versions of Solaris prior to version 10, the /etc/inittab was edited manually. Solaris 10+ manages the /etc/inittab through SMF. The Solaris 10 inittab should not be edited directly

Jun 20, 2013 12:30am

Frequency Trails

Frequency trails are a simple and intuitive visualization of the distribution of sampled data.

Jun 19, 2013 6:22am

Veritas Volume Manager Notes

Veritas has long since been purchased by Symantec, but its products continue to be sold under the Veritas name. Over time, we can expect that some of the products will have name changes to reflect the new ownership.

Veritas produces volume and file system software that allows for extremely flexible and straightforward management of a system's disk storage resources.

Jun 19, 2013 12:30am

Recovery Strategies

Besides cost, the key business continuity drivers for a recovery solution are the Recovery Point Objective and the Recovery Time Objective.

Recovery Point Objective

The Recovery Point Objective (RPO) refers to the recovery point in time. Another way to think of this is that the RPO specifies the maximum allowable time delay between a data commit on the production side and the replication of this data to the recovery site.

It is probably easiest to think of RPO in terms of the amount of allowable data loss.

Jun 18, 2013 1:00am

PROM Environment Variables

PROM Environment variables can be set at either the root user prompt or the ok> prompt.

Most (but not all) PROM environment variables can be set with the /usr/sbin/eeprom command. When invoked by itself, it prints out the current environment variables. To use eeprom to set a variable, use the syntax:
/usr/sbin/eeprom variable_name=value

Jun 17, 2013 1:00am

System Memory Usage

mdb can be used to provide significant information about system memory usage. In particular, the ::memstatdcmd, and the leak and leakbuf walkers may be useful.

Jun 14, 2013 1:00am

Instrumented soccer

After talking with one of the dads on Nathaniel’s team, I decided to start playing soccer again, this time in the PAASL Men’s B division. (I played a single season of AYSO Adult League in fall of 2011, but work got a bit too busy.

Jun 13, 2013 10:10pm

Don't Forget: July 15 is Virtual Sysadmin Day!

There are those who cynically claim that Virtual Sysadmin Day is just something made up to sell greeting cards and flowers, but I think it's a lovely holiday, and a chance to show the virtual sysadmins in your life that you car

Jun 13, 2013 8:42am

Comparing Solaris 11 Zones to Solaris 10 Zones

Many people have asked whether Oracle Solaris 11 uses sparse-root zones or whole-root zones. I think the best answer is "both and neither, and more" - but that's a wee bit confusing. This blog entry attempts to explain that answer.

First a recap: Solaris 10 introduced the Solaris Zones feature set, way back in 2005.

Jun 12, 2013 7:00am

Swap

The Solaris virtual memory system combines physical memory with available swap space via swapfs. If insufficient total virtual memory space is provided, new processes will be unable to open.

Swap space can be added, deleted or examined with the swap command. swap -l reports total and free space for each of the swap partitions or files that are available to the system. Note that this number does not reflect total available virtual memory space, since physical memory is not reflected in the output.

Jun 11, 2013 6:25pm
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