Free Toronto Performance Seminar
Velocity Software is hosting a free one day performance seminar in Toronto on July 13th! For additional information and to register please go to http://www.velocitysoftware.com/seminar/seminar.html Topics Presented Managing Linux under z/VM using the Linux Performance Suite (ESALPS) Managing Linux on a mainframe requires capacity planning, performance analysis, chargeback, and operational support. This next topic describes the technologies employed by Velocity Software's ESALPS. a.. SNMP and Net-SNMP b.. Measuring Linux, NT, and Sun Servers c.. VM Performance Data d.. Using ESALPS for Performance Data Collection VM and Linux Configuration Guidelines Many installations have failed in their proof of concept because of simple configuration errors. Linux on System z is NOT Linux on Intel, and is NOT z/VM for traditional CMS workloads. The requirements are very different. On System Z, we have technologies that other platforms can only dream of - and utilizging those technologies often means the difference between success and failure. This topic presents: a.. Configuring for Performance b.. Subsystems: DASD, Storage, Expanded Storage, Paging c.. Scheduler Parameters Analyzing and Tuning Linux Storage in z/VM Environment. Running Linux under z/VM well requires an understanding of Linux storage and the tuning options that exist. This presentation looks at: a.. Linux Storage Overview b.. Storage Tuning Options (XIP, CMM) c.. Standard Tuning Techniques Linux and z/VM Accounting and Chargeback This presentation is provided to answer today's most common question of how to perform accounting and chargeback for linux processes, applications and/or servers. Melissa Curry Account Executive Velocity Software, Inc. 196-D Castro Street Mountain View, CA 94041-1202 Office: (650) 964-8867 Cell: (415) 994-4579 fax: (650) 964-9012 meli...@velocitysoftware.com www.velocitysoftware.com -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Boot Verification
Velocity Software's newest offering, zPro, may provide the capabilities you need in the near future. zPro is currently being offered in Beta at current customer sites. Additional information can be found at the following URL. http://www.velocitysoftware.com/zPRO.html Contact me if you would like to schedule a demo. Melissa Curry Account Executive Velocity Software, Inc. 196-D Castro Street Mountain View, CA 94041-1202 Office: (650) 964-8867 Cell: (415) 994-4579 fax: (650) 964-9012 meli...@velocitysoftware.com www.velocitysoftware.com - Original Message - From: Hobbs, Robert robert.ho...@fmr.com To: LINUX-390@VM.MARIST.EDU Sent: Monday, June 01, 2009 6:38 AM Subject: Linux Boot Verification Can anyone recommend a simple way to verify that Linux servers running under zVM have booted successfully? Until recently we had a program product that in addition to it's main function was able to verify that the Linux servers had booted successfully. Alas, the contract for the product was not renewed and now we need to find a replacement method other than logging onto each server. Thank you in advance for your suggestions. Robert Hobbs Operating System Services 972-584-5227 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: bash shell question
Melissa Curry Sales Representative Velocity Software, Inc. 196-D Castro Street Mountain View, CA 94041-1202 Office: (650) 964-8867 Cell: (415) 994-4579 fax: (650) 964-9012 meli...@velocitysoftware.com www.velocitysoftware.com - Original Message - From: Larry Ploetz la...@stanford.edu To: LINUX-390@VM.MARIST.EDU Sent: Wednesday, January 07, 2009 11:39 AM Subject: Re: bash shell question On 1/7/09 10:15 AM, Mark Post wrote: On 1/7/2009 at 5:44 AM, John Summerfielddeb...@herakles.homelinux.org wrote: -snip- logrotate expects you're logging sensibly. John is not. sensibly means the program can close and reopen the logfile on demand. That is not a requirement for logrotate. If nothing else the copytruncate parameter will do what is desired. I had to wind up using that for ntpd, since it never closes its log file, and any signals ntpd gets result in it shutting down. Right, but copytruncate doesn't create sparse files when it's rotating old generations (i.e., it probably reads the file and creates real \x00 where there was sparse-ness): $ du -csxB1 /tmp/t3* 397312 /tmp/t3 1277952 /tmp/t3.1 135168 /tmp/t3.2 8192/tmp/t3.logrotate 4096/tmp/t3.sparse 8192/tmp/t3.state 1830912 total $ du -csxB1 --apparent-size /tmp/t3* 1654180 /tmp/t3 1267728 /tmp/t3.1 126808 /tmp/t3.2 43 /tmp/t3.logrotate 104857600 /tmp/t3.sparse 48 /tmp/t3.state 1048579048807 total t3 is the current (and, coincidentally, closed) log, and is sparse (397312 = 1654180), but t3.1 (1277952 = 1267728) and t3.2 (135168 = 126808) aren't. Real sparse files like t3.sparse (4096 = 104857600) are almost always smaller than their apparent size. - Larry -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
June 28th Bay Bunch Meeting!
Please join us for a half-day meeting of the Bay Bunch user group hosted by Velocity Software, Jeskell and IBM. The Bay Bunch is a regional group consisting of System z and Linux enthusiasts. This is a free meeting. If you are interested in issues relating to System z and zLinux, you won't want to miss these informative sessions! Please go to www.baybunch.org for details and registration information. -- 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
February 23 Bay Bunch Meeting
Please join us for a half-day meeting of the Bay Bunch user group hosted by Velocity Software, Jeskell and IBM. The Bay Bunch is a regional group consisting of zSeries and Linux enthusiasts. This is a free meeting. If you are interested in issues relating to zSeries and zLinux, you won't want to miss these informative sessions! Please go to baybunch.org for additional information. Melissa Curry Velocity Software O.(650) 964-8867 C. (415) 994-4579 F. (654) 964-9012 196-D Castro Street Mountain View, CA 94041-1202 [EMAIL PROTECTED] www.velocitysoftware.com If you can't measure it, I'm Just NOT interested!(tm) -- 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
Re: Supporting zLinux
Have you looked at ESALPS from Velocity Software? Information can be found at www.velocitysoftware.com - Original Message - From: Jon Brock [EMAIL PROTECTED] To: LINUX-390@VM.MARIST.EDU Sent: Friday, August 12, 2005 7:48 AM Subject: Re: Supporting zLinux I am pondering how to go about monitoring the Linux guests here at my shop. We have ASG's TMON for our z/OS system, but I don't think they have a Linux product yet. For the moment, I'm thinking about trying some unholy combination of the VM Performance Toolkit, top, and maybe Nagios or mon. Nagios, mon, and other such products are capable of producing e-mails to lists of support personnel. (In our case, we can use an e-mail to trigger a pager if we want.) We also have ACF2 on z/OS, but I don't think there are any plans (yet) to expand that to Linux; it wouldn't surprise me, though, if we eventually went to some sort of LDAP setup. We use FDRINSTANT for our backups. We bring the VM/Linux volumes online to z/OS, shut down the Linux guests, run the snapshots, restart the guests, run the backups, and then vary the volumes back offline. I have not yet gotten an opportunity to try a test restore of the backups, though. Jon snip Just a couple of quick questions. Does anyone use any 3rd party tool,like OmegaMon, to monitor zlinux? Has anyone every tried to implement CA's eTrust ACF2 Security for zLinux? Has anyone tried doing volume level backups using FDR or DFSMS? Do companies have a production control area monitoring the monitor? Or do you page when alerts happen? Reason for questions. We are trying to build a case for the use of zLinux in our shop. Management wants to be assured that all the pieces are there before they will go forward. Thus the fact finding mission. /snip -- 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 -- 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
