Salesforce has second outage in two weeks.

Seven instances went down at some time or another on Tuesday, starting with NA1, NA5 and NA6 in North America, according to a notice posted at 12:49 a.m. PDT on Salesforce.com's system status page. Shortly thereafter, the CS0, CS1, CS3 and CS12 regions, which are part of a set of "sandbox" instances Salesforce.com customers can use for development, testing and new feature previewing, were also affected, according to the site.

The official status is here.

The first status is this.

12:49 am PDT : NA1/NA5/NA6 Service Disruption
The salesforce.com Technology Team is currectly investigating a service disuption issue affecting the NA1/NA5/NA6 instance.
Please check the status of trust.salesforce.com frequently for updates regarding this issue.

The latest is here.

9:00 am PDT : NA1/NA5/NA6/CS0,CS3,CS1,CS12 salesforce.com System Status - Update
The salesforce.com Technology Team has restored the search functionality on the NA1, NA5, and NA6 instances.

The salesforce.com Technology Team continues to work on restoring the service on CS12 instances and the salesforce.com application configurator.

Please check the status of trust.salesforce.com frequently for updates regarding this issue.

We'll see what the post mortem says the cause of this outage.