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OpenVOS Blog
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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.
Unblocking calls to the recv function without using non-blocking mode
By Noah DavidsWhen writing a network application you can use non-blocking mode or blocking mode. Non blocking mode is more flexible and required when the application has to do multiple things, like servicing multiple sockets. If however the application is doing only 1 thing, for example reading from a socket and writing the data to a file or queue then using blocking mode can reduce your application's complexity significantly. There is one small problem with blocking mode, if something goes wrong with the connection the application may never know; it will wait forever for data that will never arrive. There is however an OpenVOS specific solution.Read More | 2 comments | Last comment at 8/23/2010 11:41amWhy didn't my bandwidth upgrade speed up my file copies?
By Noah DavidsThe simple answer is that more capacity is not the same as faster bytes. If you increase your capacity by almost 29 times you may be able to copy 29 files in the same 90 minutes but you probably will not be able to copy that one file in 3 minutes.Explaining the traceroute command
By Noah DavidsTraceroute can be an invaluable tool when trying to diagnose connection problems to hosts on other networks. However to be used effectively you have to understand how it works and what the output means.
Do you have the oldest or longest-running Stratus computer system?
By Paul GreenWould you like to win an Apple iPad computer? Do you own a Stratus computer that has been up for a long time, or do you have a really old Stratus computer still up and running? Read on to see how you can win by entering our Stratus4Uptime contest.
Automating file transfers with SFTP
By Noah DavidsIn my last bog I talked about automating file transfers using FTP. There are three issues with using FTP. First, your password is sent across the network in clear text making it available to anyone with a protocol analyzer. Second, your data is also sent in clear text. Third, you have to record your password somewhere on the module, either in the macro or in the .netrc file. Because of these issues many sites have mandated or are thinking of mandating that SFTP, the secure FTP subsystem of SSH, be used instead of FTP. However, you just cannot replace ftp with sftp in your command macro and expect it to work.
Read More | 1 comments | Last comment at 3/9/2010 12:58pmAutomating file transfers with FTP macros
By Noah DavidsLots of people have created automated processes to transfer files using FTP. There are several different ways to do this some better than others. This blog will discuss the different approaches and identify the advantages and disadvantages of each. It will also cover an issue which can result in incomplete files being transferred.Five tips to help speed problem resolution
By Noah DavidsWhen you contact customer support with a problem, the typical goal is to get it resolved FAST. I have observed that in many instances the initial contact with support coordination makes a fast resolution much less likely. This blog provides some tips to help speed up problem resolution.
Aligning SVM regions in POSIX and non-POSIX programs
By Paul GreenI recently fielded a question from a VOS customer who wanted to know how to get his shared virtual memory regions to align between his legacy non-POSIX programs and his new, POSIX-based programs. Here's what I told him.