Businessbreakfast in HAM,FRA,DUS,MUC and BER in November/December 2019 about Solaris, VDCF and PCA

As this is a event in german language, the following text is in german: Nach einer längeren Pause möchten wir die Reihe der Business Breakfasts wieder fortsetzen und Euch dazu...

Sandbox without networking

Quite for a while now the ability to access the network is a privilege in Solaris and nothing that you have always the right to do so, like the privilege...

scsitrace

Another addition to DTrace was the integration of a SCSI provider allowing you to trace SCSI commands on your system. It’s a quite powerful feature allowing you to get in-depth...

fileops provider in DTrace

Solaris 11.4 got a new fileops provider. This provider is independent from the filesystem you are using. So you can easily trace filesystem accesses with it. For example so see...

Create your own SMF goal service

Yesterday I demonstrated goal services to you with the build-in goal services. But can you do if two important applications are running under control of a single SMF and you...

Goal services in Solaris 11.4

A disabled service in SMF does nothing. It doesn’t tell you that it’s disabled without being asked. Well … at the end that is is the point of disabling it...

Duplication

Due to the correction of an error in the RSS feed of this page, some entries may be posted twice to Twitter and Facebook. I do apologize for this.

Nested properties

Yesterday i wrote about the new location of the persistent networking configuration. You may have noticed another feature in this output that went into Solaris 11.4 interfaces/net0/additional/ipv4-address astring 192.168.30.241 The...

Network configuration in SMF

When tools like ipadm were introduced to Solaris, the first question in most presentations in that time about this topic the location where the data is stored. I showed it...

Fast copies with Solaris 11.4

Oracle 11.4 got two new functions called reflink and reflinkat. It’s seems to be a rather small change, but it has quite some importance. The man page explains: The reflink()...

Read and write bandwidth limits in ZFS

Especially in environments with loads competing for the same resources (like using disk space on the same array) it can be useful to limit the ability of an application to...

useradm

Solaris 11.4 has a new tool to ease the administration of user accounts. It’s called useradm. It can be used to add,modify, delete and list users themself and the configuration...

ZFS top-level vdev removal - revisited

I would like to give you some additional information about the top-level device removal. Other than stated by me in my last blog entry or the documentation you can't do...

pfiles

There are two nice changes to the pfiles tool. Sometimes it’s really useful to know what files were open when a process threw a core dump. With Solaris 11.4 pfiles...

Clearer versioning in packages.

Since Oracle (or at that time Sun) introduced the the new packaging system in Solaris Express and later Solaris 11, the version string was a little bit strange. root@togusa:~# pkg...

How to remove a top-level vdev from a ZFS pool

Over the years I did many, many presentations. Whenever talking with the customers afterwards about what they would like to see in ZFS, there was one feature that was always...

Give the route a name

With Oracle Solaris 11.4 you are now able to give routes a name, thus making easier to refer to them in the route command. Let’s create a route in the...

How to use the Oracle Database Sheet in Solaris 11.4

My colleague Joost wrote a great article explaining how to use the Database Sheet (the feature i wrote about a few days ago) and how it looks: "Discover the New...

NFSv3 over TCP

When reading the headline, you may think “What? This works for years now”. Well, you are right. You can do NFS over TCP. There was just a small problem before...

DTrace on ... what ??? Err, DTrace on Windows

Very interesting news about one of my favorite features in Solaris for years as i’m doing a lot of performance work at customers. Microsoft has actually implemented DTrace for Windows....