One of the most critical issues with Linux on "z" is the overhead of the infrastructure. If you plan on running a hundred linux servers, multiple the cost of the agents required by the infrastructure times 100 and then ask if this is a workable solution.
NETSNMP runs at between .1 and .3% of a processor on most servers - it is used primarly for performance data collection and accounting purposes, it is also used for operational alerts on file systems, disk space, looping processes, swapping, and server availability, There are thousands of linux servers running netsnmp today on the "z" platform, probably orders of magnitude more than any other agent because of it's low overhead and high functionality. Any idea what the cost is of operating Nagios, or Hobbit is, with there relatively low functionality? I haven't heard of anyone running these on systems with many servers, nor have i heard of anyone actually running the 892 pound leviathan on this platform in production anywhere. >Date: Fri, 3 Mar 2006 08:57:07 -0600 >From: Rich Smrcina <[EMAIL PROTECTED]> > >Additionally, I've integrated monitoring VM and VSE into Hobbit (disk >space, running processes [virtual machines or jobs], CPU, Paging, etc). > There is a client for z/OS and OS/390, but since I don't have access >to z/OS (nor am I well versed in z/OS) I don't have any examples. > >I would guess the same could be done for Nagios with modifications. > >David Boyes wrote: >>>> Anyone using this to monitor Linux under VM on a large scale basis? >>>> Seems like a pretty heavy agent (java based) memory wise. >> >> It is a 892 pound leviathan (I won't recap the long discussion I had >> with the Director development team about *why* this was bad). If you >> have heavy investment in Director on Intel or PPC and you're using >> Tivoli Provisioning Mgr or Intelligent Orchestrator it may make sense to >> integrate with the automated provisioning stuff, but the footprint of >> the agent is *enormous* for simple health-check monitoring. >> "If you can't measure it, I'm Just NOT interested!"(tm) /************************************************************/ Barton Robinson - CBW Internet: [EMAIL PROTECTED] Velocity Software, Inc Mailing Address: 196-D Castro Street P.O. Box 390640 Mountain View, CA 94041 Mountain View, CA 94039-0640 VM Performance Hotline: 650-964-8867 Fax: 650-964-9012 Web Page: WWW.VELOCITY-SOFTWARE.COM /************************************************************/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
