Re: [OpenIndiana-discuss] comstar targets dying randomly

2014-06-27 Thread Pawel Stefanski
Hello Wim! You cloud set it in /etc/system: set stmf:stmf_min_nworkers = 512 set stmf:stmf_max_nworkers = 1024 and to change it instantly - it is not possible on Nexenta 3.1.5 where reboot is needed. echo stmf_min_nworkers/W0t512 | mdb -kw echo stmf_max_nworkers/W0t1024 | mdb -kw Of course you sh

Re: [OpenIndiana-discuss] comstar targets dying randomly

2014-06-26 Thread w...@vandenberge.us
Hello Pawel, Is the maximum number of process you speak of defined somewhere (and can it be changed)? We've monitored these two numbers for a couple of days now in 5 minute intervals and observed that a) The number of workers is always higher or equal to the number of tasks; and b) the numbers see

Re: [OpenIndiana-discuss] comstar targets dying randomly

2014-06-24 Thread Pawel Stefanski
hello You should monitor number of running stmf tasks versus number of stmf (comstar) processes. We had such issues - once we hited max number of processes and second time - there was a bug regarding stmf process pool scaling (but I think it's Nexenta specific, not Illumos). keys to observe: echo

[OpenIndiana-discuss] comstar targets dying randomly

2014-06-24 Thread w...@vandenberge.us
Hello, I have three OpenIndiana (151A8) servers used as iSCSI targets. All servers have two 10Gbe interfaces to separate Dell 8024F switches running the latest firmware. These servers provide storage for a bank of 16 Windows 2012R2 virtualization servers, each running 16 virtual machines (Windows