Archive for the ‘NAS’ Category

The Solaris Internals Virtual Shell Game

Monday, March 2nd, 2009

In a stark contrast to recent past when Solaris Internals was hosted on physical machines, we've just experienced one of the core values of virtualization -- encapsulated, portable state allowing geographic mobility. Solaris Internals has over the last two weeks been teleported out of my datacenter (As Jim notes, the ...

IO Challenge Update 3: 31,323 IOPS

Monday, May 19th, 2008

We now starting to see some of the more enterprise-league I/O rates... In contrast to the simple NVRAM cached 3 disk configurations used in the previous posts, we've moved to one of the more typical SAN based setups used for running the bigger applications. In this case, we now have ...

What happens when toddler curiosity meets ZFS?

Thursday, November 15th, 2007

It's always entertaining and revealing to look at performance statistics in the frequency domain. Since most performance anomalies are driven by some regular external event, you can often learn about what might be causing repetitive performance or response time patterns. Here's an interesting graph of the traffic to solarisinternals.com: The traffic ...

Oracle now providing a Direct NFS Client

Wednesday, October 10th, 2007

A couple of years back, I sponsored a set of projects to look at how NFS could be used for databases. Some of the previous work that showed how NFS can be used for databases is covered here. One of the more research-oriented projects was one which we implemented an ...