While analyzing Write-Back cache activity on Exadata storage cells, I wanted something to interactively monitor IO while I was running various tests. The problem is summarizing the results from ALL storage cell. So, I decided to use my old friend “iostat” and a quick easy script to roll up the results for both DISK and FLASH. This allowed me to monitor the IOPS, IO size, wait times, and service times.
The “iostat-all.sh” tool shows the following data:
This entry goes out to my Oracle techie friends that have been in the Linux camp for sometime now and are suddenly finding themselves needing to know more about Solaris… hmmmm… I wonder if this has anything to do with Solaris now being an available option with Exadata? Or maybe the recent announcement that the SPARC T3 multiplier for T3-x servers is now 0.25. Judging by my inbox recently, I suspect a renewed interest in Solaris to continue.