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The individual owning this blog works for Oracle in Germany. The opinions expressed here are his own, are not necessarily reviewed in advance by anyone but the individual author, and neither Oracle nor any other party necessarily agrees with them.
Less known Solaris Features: Remote Mirror with AVS - Part 5: Replication Groups
Monday, March 31. 2008
A new scenario: Okay, the filesystem gets replicated now. Let´s assume that we use
/dev/rdsk/c1d0s1 for a database. The filesystem and the database partition are used from the same application and it´s important, that the metadata in the database an the binary objects are in sync even when you switched over to the remote site, albeit it´s acceptable to lose the last few transactions, as both sites are 1000km away from each other and synchronous replication is not an option.
Continue reading "Less known Solaris Features: Remote Mirror with AVS - Part 5: Replication Groups"
Posted by Joerg Moellenkamp
in English, Solaris
at
16:53
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Defined tags for this entry: avs
, disaster recovery
, lksf
, remote mirror
, solaris
, storage
, sun
, tutorial
, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorialNasendusche
Monday, March 31. 2008
Unix für Männer
Monday, March 31. 2008
Ich weiss ... auch bei Solaris ist nicht alles im Reinen. Aber Kris "made my day", in dem er mir diese Links zu einem Blog geschickt hat, dessen Betreiber zur Arbeit auf AIX gezwungen wird:
- Das Unix für Männer
"unverständliche Einschränkungen" - Das Unix für Männer (Teil 2)
2 GB Heap auf AIX - Das Unix für Männer (Teil 3)
Wie ein Clusterfilesystem ploetzlich readonly wird ... - Das Unix für Männer (Teil 3)
Spass beim Cluster-Failover - oder: Wie Dinge aufregend werden, die eigentlich nicht aufregend werden dürfen. Besonderes interessant finde ich allerdings, welche Auswirkungen ein an sich kleiner Fehler hat.
Posted by Joerg Moellenkamp
in German
at
10:36
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Defined tags for this entry: solaris
Less known Solaris Features: Remote Mirror with AVS - Part 4: Testing the replication.
Sunday, March 30. 2008
One of the most essential tasks when configuring disaster recovery mechanism is training the procedure. Thus let´s test the switch into our remote datacenter. We will simulate a failure now. This will show that the data really get´s replicated to a different system 
Continue reading "Less known Solaris Features: Remote Mirror with AVS - Part 4: Testing the replication."
Posted by Joerg Moellenkamp
in English, Solaris
at
22:53
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Defined tags for this entry: avs, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorial
, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorialLess known Solaris Features: Remote Mirror with AVS - Part 3: Setting up a synchronous mirror with AVS
Sunday, March 30. 2008
After this short introduction in the theory of AVS Remote mirror, we will set up such an replication between two hosts.
Continue reading "Less known Solaris Features: Remote Mirror with AVS - Part 3: Setting up a synchronous mirror with AVS"
Posted by Joerg Moellenkamp
in English, Solaris
at
21:10
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Defined tags for this entry: avs, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorial
, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorialLess known Solaris Features: Remote Mirror with AVS - Part 2: The fundamentals of Remote mirroring with AVS
Sunday, March 30. 2008
Some words about Sun StorageTek Availability Suite at first: We´ve opensourced the product quite a while ago. While it´s a commercial product for Solaris, we´ve integrated it into Solaris Express Community Edition and Developer Edition.
Continue reading "Less known Solaris Features: Remote Mirror with AVS - Part 2: The fundamentals of Remote mirroring with AVS"
Posted by Joerg Moellenkamp
in English, Solaris
at
20:49
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Defined tags for this entry: avs, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorial
, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorialLess known Solaris Features: Remote Mirror with AVS - Part 1: Introduction
Sunday, March 30. 2008
Solaris was designed with commercial customers in mind. Thus this operating environment has some capabilities that are somewhat useless for the soho user, but absolutly essential for enterprise users. One of this capabilities is remote replication of disk volumes. Imagine the following situation. You have a database and a filesystem for a central application of your company. The filesystem stores binary objects (for example images or something like that). The application is so important for your company, that you plan to build a replicated site. And now your problems start.
Continue reading "Less known Solaris Features: Remote Mirror with AVS - Part 1: Introduction"
Posted by Joerg Moellenkamp
in English, Solaris
at
20:43
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Defined tags for this entry: avs, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorial
, disaster recovery, lksf, remote mirror, solaris, storage, sun, tutorialVirtual machines and system time
Sunday, March 30. 2008
c0t0d0s0 at Systemnews
Sunday, March 30. 2008
c0t0d0s0 was linked at sun.systemsnews.com again. This time it´s my article about Solaris Resource Management:
I read this website for several years now as a excellent resource of information and i´m somewhat proud of seeing my articles to be linked there.
I read this website for several years now as a excellent resource of information and i´m somewhat proud of seeing my articles to be linked there.
Posted by Joerg Moellenkamp
in English, Sun/Oracle
at
16:41
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Defined tags for this entry: solaris
links for 2008-03-30
Sunday, March 30. 2008
txt2re
Saturday, March 29. 2008
links for 2008-03-29
Saturday, March 29. 2008
-
Barcodes am Grab ...
-
About NUMA and lgroups
Posted by del.icio.us
in del.icio.us, English
at
12:39
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Defined tags for this entry: solaris
Security Drama Queens
Friday, March 28. 2008
Okay, at the first moment i was really in fear that we have installed OS images with a nasty new security vulnerability or we installed a solaris version with the infamous telnet bug, when i´ve read this Sun confirms it shipped vulnerable servers. Okay, then searching for the SunAlertSome Sun SPARC Enterprise T5120 and T5220 Servers Shipped With an Incorrect Solaris 10 Image Containing an Insecure Configuration. Drama queens ... just a little experience from the field: We delivered a system in a configuration that many systems gets within 10 minutes after booting anyway .. with activated remote root login Well, believe it or not ... there are customers still using telnet. The day when the last admin understands that telnet or remote direct root login are bad ideas will be the same day i´m out for figure skating in hell ...
PS: Nevertheless, something like that should not happen ....
Well, believe it or not ... there are customers still using telnet. The day when the last admin understands that telnet or remote direct root login are bad ideas will be the same day i´m out for figure skating in hell ... PS: Nevertheless, something like that should not happen ....
Future of NFS
Friday, March 28. 2008
Interesting article about NFS at EnterpriseStorageForum - "The Future of NFS Arrives":
I believe that NFSv4.1 is going to make a number of file systems look very bad.
TagCrowd
Friday, March 28. 2008
Nice tool to create a tag cloud based on a website or text
apple archiving business c0t0d0s0 comments configuring continue crisis das data defined del der die eastern entry features filesystem hierarchical ich icio installation iscsi ist jargon joerg known less lksf mal management merry moellenkamp nicht okay posted reading samfs solaris storage sun tags technology theory trackback tutorial wed wish working zu
created at TagCrowd.com
+1
The LKSF book
The book with the consolidated Less known Solaris Tutorials is available for download here
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