Starting with Solaris 11.4 you got a new interface for device latency without using dtrace. The information was always there but now you can use a “human readable” command. That might bring easier understanding and analyzing the disk subsystem. I ran an IO…

Just read a nice blog about ZFS performance I would like to recommend: Six Metrics for Measuring ZFS Pool Performance Good explanations and maybe great input on your next layout… It’s from a BSD engineer, but the basics are true for all ZFS implementations……

Last time I had big fun upgrading a bunch of Solaris clusters from solaris 11.3 and cluster 4.3 to solaris 11.4 and cluster 4.4 on some T5 servers. Having Solaris Cluster installed gave me an error on pkg update… some days later I had to install some other…