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Showing entries 1 to 10 of 11 1 Older Entries

Displaying posts with tag: disaster (reset)

Basic scalability principles to avert downtime
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In the press in the last two days has been the reported outage of Amazon Web Services Elastic Compute Cloud (EC2) in just one North Virginia data center. This has affected many large website includes FourSquare, Hootsuite, Reddit and Quora. A detailed list can be found at ec2disabled.com.

For these popular websites was this avoidable? Absolutely.

Basic scalability …

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Oracle Solaris Cluster 3.3 available
Employee +2 Vote Up -2Vote Down
On September 8, 2010 Oracle announced the availability of Oracle Solaris Cluster 3.3

Oracle Solaris Cluster 3.3, built on the solid foundation of Oracle Solaris, offers the 
most extensive Oracle enterprise High Availability and Disaster Recovery solutions for the 
largest portfolio of mission-critical applications.

Integrated and thoroughly tested with Oracle's Sun servers, storage, connectivity 
solutions and Solaris 10 features, Oracle Solaris Cluster is now qualified with Solaris 
Trusted Extensions, supports Infiniband for general networking or storage usage, and can 
be deployed with Oracle Unified Storage in Campus Cluster configurations. It extends its 
applications support to new …
  [Read more...]
Oracle Solaris Cluster 3.3 available
Employee +0 Vote Up -0Vote Down
On September 8, 2010 Oracle announced the availability of Oracle Solaris Cluster 3.3

Oracle Solaris Cluster 3.3, built on the solid foundation of Oracle Solaris, offers the 
most extensive Oracle enterprise High Availability and Disaster Recovery solutions for the 
largest portfolio of mission-critical applications.

Integrated and thoroughly tested with Oracle's Sun servers, storage, connectivity 
solutions and Solaris 10 features, Oracle Solaris Cluster is now qualified with Solaris 
Trusted Extensions, supports Infiniband for general networking or storage usage, and can 
be deployed with Oracle Unified Storage in Campus Cluster configurations. It extends its 
applications support to …
  [Read more...]
Oracle Solaris Cluster 3.3 available
Employee +0 Vote Up -0Vote Down
On September 8, 2010 Oracle announced the availability of Oracle Solaris Cluster 3.3

Oracle Solaris Cluster 3.3, built on the solid foundation of Oracle Solaris, offers the 
most extensive Oracle enterprise High Availability and Disaster Recovery solutions for the 
largest portfolio of mission-critical applications.

Integrated and thoroughly tested with Oracle's Sun servers, storage, connectivity 
solutions and Solaris 10 features, Oracle Solaris Cluster is now qualified with Solaris 
Trusted Extensions, supports Infiniband for general networking or storage usage, and can 
be deployed with Oracle Unified Storage in Campus Cluster configurations. It extends its 
applications support to new …
  [Read more...]
Calculating your database size
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I generally use the following MySQL INFORMATION_SCHEMA (I_S) query to Calculate Your MySQL Database Size. This query and most others that access the MySQL INFORMATION_SCHEMA can be very slow to execute because they are not real tables and are not governed by physical data, memory buffers and indexes for example but rather internal MySQL data structures.

Mark Leith indicates in his post on innodb_stats_on_metadata that Innodb performs 8 random(ish) dives in to the index, when anybody accesses any of SHOW …

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Never let your binlog directory fill up
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Recently with a client while running a number of disaster recovery tests I came across a nasty situation which was not part of the original plan and provided a far worse disaster situation then expected.

I should preface this condition with some of the environment conditions.

  • MySQL 5.0 Enterprise 5.0.54
  • RHEL 5 64bit
  • Master and 2 Slaves
  • MySQL Data and MySQL Binary Logs/MySQL Error Logs are on separate disk partitions

While running stress tests under high load, we tested the filling of partition containing the logs. This partition included the binary log and MySQL …

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Solaris Cluster + MySQL Demo at a Exhibition Hall near you
Employee +0 Vote Up -1Vote Down

Hi,

If by any chance you are at the MySQL user conference in Santa Clara conference center, there are some great possibilities to see MySQL and Solaris Cluster in action.

We have a demo at the exhibition hall, where you can see MySQL with zone cluster and MySQL with SC Geographic Edition.

I will host a birds of a feather at Wednesday 4/22/09 evening in meeting room 205 at 7 pm. The Title is "Configuring MySQL in Open HA …

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Solaris Cluster + MySQL Demo at a Exhibition Hall near you
Employee +0 Vote Up -0Vote Down

Hi,

If by any chance you are at the MySQL user conference in Santa Clara conference center, there are some great possibilities to see MySQL and Solaris Cluster in action.

We have a demo at the exhibition hall, where you can see MySQL with zone cluster and MySQL with SC Geographic Edition.

I will host a birds of a feather at Wednesday 4/22/09 evening in meeting room 205 at 7 pm. The Title is "Configuring MySQL in …

  [Read more...]
Solaris Cluster + MySQL Demo at a Exhibition Hall near you
Employee +0 Vote Up -0Vote Down

Hi,

If by any chance you are at the MySQL user conference in Santa Clara conference center, there are some great possibilities to see MySQL and Solaris Cluster in action.

We have a demo at the exhibition hall, where you can see MySQL with zone cluster and MySQL with SC Geographic Edition.

I will host a birds of a feather at Wednesday 4/22/09 evening in meeting room 205 at 7 pm. The Title is "Configuring MySQL in Open …

  [Read more...]
Can I have your horror-stories, please? (SANs and VMs)
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Please make it descriptive, graphic, and if anything burnt or exploded I'd love to have pictures.
Include an approximate timeline of when things happened and when it was all working again (if ever).
Thanks!

This somewhat relates to the earlier post A SAN is a single point-of-failure, too. Somehow people get into scenarios where highly virtualised environments with SANs get things like replication and everything, but it all runs on the same hardware and SAN backend. So if this admittedly very nice hardware fails (and it will!), the degree of "we're stuffed" is particularly high. …



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Showing entries 1 to 10 of 11 1 Older Entries

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