Press Review #21
Here is a little press review mostly around Oracle technologies and Solaris in particular, and a little lot more:
Implementing Root Domains with Oracle VM Server for SPARC
This paper describes how to implement an increasingly useful type of virtualization feature known as root domains. It also describes an operational model where root domains can be used in conjunction with Solaris Zones for maximum performance and a high degree of flexibility.
Oracle Magazine: SPARC at 25
The SPARC architecture is perhaps the first and longest lasting open and mainstram computing architecture in human history. In Ocrober 2012, Network Management published a reminder for people to attend the "SPARC at 25" event at the Computer History Museum. In November of 2012, Network Management published an short article pointing to the replay of the historic events: SPARC at 25: Past, Present, and Future. Diana Reichardt published an article "SPARC at 25" in the bi-monthly printed Oracle Magazine, covering the event.
New Tab: OpenSXCE New Distribution!
OpenSolaris grew from an Open Source repository to Open Solaris Distribution (for both Intel and SPARC.) Solaris Express Community Edition (Solaris SXCE) was the Intel/SPARC forerunner of Oracle Solaris 11, which abandoned UltraSPARC processors. OpenSXCE, based upon the work of MarTUX, brings OpenIndiana and Illumos back to SPARC as a full distribution, based upon standards such as SVR4 packaging.
Encapsulating Oracle Databases with Oracle Solaris 11 Zones
Implementing higher degrees of isolation can be accomplished by encapsulating each database environment. Encapsulation can be accomplished with physical or logical isolation techniques. Oracle recently certified 11gR2 RAC in Solaris 11 Zones, which is an important capability for database clouds, because it enables strong isolation between databases consolidated together on a shared hardware and O/S infrastructure.
How to Build a Secure Cluster
This article discusses how to enable Trusted Extensions on an Oracle Solaris Cluster 4.1 cluster and configure a labeled-branded Exclusive-IP type of zone cluster.
How to Install Oracle Linux 6.3 with a Btrfs Root File System
This article is a step-by-step guide for installing Oracle Linux 6.3 with a Btrfs root file system on an Oracle VM guest.
Improve Your Hardware Support Experience
Oracle Hardware customers who are running Oracle Solaris or Oracle Solaris x86, can improve their support experience. Oracle Support recommends these three Hardware Essentials to all Oracle Hardware customers:
- Download and install the Services Tools Bundle.
- Set up Oracle Explorer.
- Enable Automatic Service Request (ASR).
Console logging in Oracle VM Server for SPARC
A new feature in Oracle VM Server for SPARC provides logging for guest domain consoles. Console I/O - all text on the serial console - is logged for all or selected domains, including text that appears before the domain boots Solaris. Logs are stored in files under the directory /var/log/vntsd/domain. These directories are root-owned to protect them from unauthorized access.
ZFS Write Performance (Impact of fragmentation)
In the past few months, George Wilson and Adam Leventhal made significant improvements to how writes are handled in ZFS. In this multi part blog post, I will talk about a benchmark we created to measure improvements in ZFS write performance as we make changes to the OS. In this post, I will talk about the benchmark setup and run. I will show some of the results from this benchmark on Delphix OS. In part two, I will present data and some analysis on the bottlenecks discovered and how they are going to be addressed.
Brendan Gregg has written an interesting piece about finding performance problems: "The USE method addresses shortcomings in other commonly used methodologies".
Announcing Oracle Solaris Cluster 3.3 3/13
Today we released Oracle Solaris Cluster 3.3 3/13 (that's a lot of threes!). This update is specifically for use with Oracle Solaris 10, delivering even more high availability and disaster recovery capabilities for mission-critical application deployments.
What is DSSD building?
The brains behind the ZFS filesystem – including Jeff Bonwick and Bill Moore – have been hard at work for several years at start up DSSD. What are they doing with Andy Bechtolsheim’s money?
Welcome to the mainline Linux kernel blog
I'd like to welcome everyone to this new blog, where I'll be discussing what's happening with the Oracle mainline Linux kernel development team. I'm James Morris, manager of the team. I report to Wim Coekaerts. I'm also the maintainer of the Linux kernel security subsystem, which I blog about separately here.
OpenAFS on Solaris 11 x86 - Robert Milkowski
The March Solaris SIG event is about running OpenAFS on Solaris 11 x86. This talk will explore what makes Solaris unique in large OpenAFS deployments with petabytes of storage - how it can save millions of dollars and make debugging and performance analysis much easier and quicker compared to other platforms. Some of the unique features of OpenAFS will be described and how we used them to migrate one of the largest OpenAFS deployments in the world - completely on-line and transparently to AFS clients. Real world examples of how DTrace was used to improve OpenAFS performance and scalability will be discussed.
Dear StorageMojo: should I go all SSD?
This came in this morning’s email from a reader I’ll call Perplexed. How would you advise Perplexed?
10Gbit Ethernet, bad assumption and Best Practice - Part 1
We find many people are over optimistic and making assumptions - which can catch them out - we learnt the hard way too.
PowerVM Virtual Ethernet Speed is often confused with VIOS, SEA IVE/HEA speed
I have had a couple of Power systems administrators make assumptions about the virtual Ethernet speed improvements when they install a 10 Gb IVE/HEA in a VIOS which are simply not true. I guess that if three teams have made this mistake then others are about too. So I intend here to put the record straight.
a few words about EtherChannel
Originally, this technology was meant to protect a host against a failure of its network adapter and/or switch (network switch). Additionally, some unscrupulous salesmen claimed a fantastic increase in throughput aka two adapters tied together will double, three adapters tied together will triple throughput of the associated with them EtherChannel adapter – yes, in a salesman pure land of fantasy.
Less known Solaris Features: Highly available loadbalancing
As you may know, Solaris contains an integrated load balancer. It's really easy to configure. Not that well known is the point, that you can make it higly-available in an easy way as well. The following tutorial will give you an overview on the configuration of this feature.
Less known Solaris Features - Data Link Multipathing
I used this feature in the HA-loadbalancing tutorial already. However the future too useful to stay just a "by-word" in a different article. It is DLMP. Or by its full name:"Data Link Multipathing".
SVM hang due to error disk (analyze)
Last weekend, I found the origin of the SVM bug using the mdb tool. Good reading !!
After restarting the server, I wanted to mount a filesystem (metaset object), but the following command was not responding...
Less known, but frequently used Solaris feature: Address space layout randomisation
One of the features introduced with 11.1 is the Address Space Layout Randomization (ASLR) . And when you work with 11.1 you are already using it. So it's a less known, but frequently used feature: less known in the point that it exists, less known in the point of the methods to control it, frequently used as it's activated per default for selected binaries (and many were selected).
How to Use an Existing Oracle Solaris 10 JumpStart Server to Provision Oracle Solaris 11 11/11
This article illustrates how to take an existing JumpStart server, install the Oracle Solaris 11 Provisioning Assistant for Oracle Solaris 10 on it, create and configure an installation service, and then provision a client system using that installation service.
Q&A About the Latest Oracle Linux Releases
We sat down with Monica Kumar, Senior Director, Oracle Linux, Oracle Virtualization, and MySQL Product Marketing, to discuss the latest update on Oracle Linux.
Exemple: Link Aggregations and VLAN Configurations for your consolidation (Solaris 11 and Solaris Zone)
Everyone knows that one of the major problem for consolidating Solaris 10 is network. if each Solaris Zones use a different network (vlan), the configuration of the Global Zone becomes a real headache.
No, ZFS still doesn't need a fsck. Really!
Friday was a day that i called once 10k day. More 10.000 visitors to my blog in one day. Saturday was similar. This surge was create by an link on news.ycombinator.com article i wrote roughly four years ago about ZFS: No, ZFS really doesn't need a fsck.
Just wanted to express that four years later and a lot more experience with ZFS later, 12 years after ZFS saw the light of the word, i'm more of the opinion that ZFS doesn't need a fsck than ever.