Friday, November 27, 2015

SANs - They aren't magic

Wes Morgan from IBM summed it up perfectly in his "Wrestling The Snake - Performance Tuning 101" Lotusphere Presentation from 2012.

Last week one of our customer's asked if we could suspend overnight processing in The Preemptive Email Vault because their SAN was overloaded. On inspection of the issue we could see that over 50% of the I/O was due to file fragmentation. Luckily the answer is simple.

1 comment:

Wes Morgan said...

Thanks so much for the kind words! Interested parties can see the full "Wrestling the Snake" presentation (and the sequel, "Digital Nightmares: The Biggest Performance Killers in Your Environment") at - along with a few of my other presentations.