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OpenVOS Blog
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Bogus analyze_system metering values on long-running modules
By Paul GreenAfter your VOS or OpenVOS module has been up for a few months or more, you may notice that some of the analyze_system metering requests display negative numbers, or rows of asterisks, or bogus values. This note explains how to deal with this situation.
VOS/OpenVOS user address space basics
By Paul GreenYou can accomplish many programming tasks in VOS and OpenVOS without knowing the details of how the operating system manages the user address space. But it is fun to know the details, and sometimes to accomplish a task you need to adjust the default configuration. This post is an introduction to the VOS user address space.
TCP is a stream of bytes not messages
By Noah Davids“The application has been running fine for years, last week the network was upgraded and we moved from 100 mbps to gigabit. Now the last half of the data in some messages is garbage. The network people swear it is not the network - but that is the only thing that changed.”
SDLMUX Revisited
By Noah DavidsThe SDLMUX software combines two network adapters into one IP interface, providing a fail over capability if the link on the active adapter goes down or the card fails. Once set up it requires virtually no administration but there are some things you should know and if you already know them, review doesn't hurt.Accessing the ftStorage array's GUI interface from your workstation
By Noah DavidsWhen the ftStorage array was originally conceived the thinking was that when it was necessary to configure something on the array administrators would use either the command line interface from an OpenVOS login session or the OpenVOS console PC to access the GUI interface. Many administrators prefer the GUI interface. Unfortunately, the console is connected to the maintenance network and located somewhere close to the system. This makes it inconvenient for most administrators - especially administrators for lights out installations. There are however, several solutions that allow a remote connection to the GUI interface.Services file not just for server processes
By Noah DavidsWith the trend away from running telnetd and FTPD and toward running SSHD many system administrators are removing the "telnet" and "FTP" service lines from the >system>stcp>services file. This will cause the telnet and FTP clients to terminate.
Monitoring network adapter status
By Noah DavidsThe other day during a discussion with some users it became clear to me that they did not understand under what conditions a Stratus VSeries system would call home regarding a network adapter. This misunderstanding resulted in the system losing its network connection. If they didn't understand I am sure that there are others who don't as well, and so this blog will attempt to explain when a system will call home regarding a network adapter.The Lazy Way to Edit a Lot of Files
By Paul GreenA few days ago, I found myself faced with needing to edit about 150 files to add 2 lines to each of them. Read on to learn how I did this without developing blisters on my fingers.
Why you should rebuild and retest with each new release of the OS
By Paul GreenWhether you are using Windows, Linux, or Stratus VOS or OpenVOS, I recommend that you rebuild and retest your application software each time you install a major release of the operating system. Read on to hear the full story.
Interop report - April 27th 2010 Las Vegas NV
By Noah DavidsInterop is not what it once was but there are some signs for optimism for the IT industry.