- First time user information
- How to set your password; account lockout policies
- How to check node usage
- How to connect to a CISER Research Node
- How to set up your working environment
- How to manage your files
- File compression
- How to control access to your files
- How to print from a CISER research node
- How to manage programs and processes
- How to end your computing sessions
- How to move files between your local PC and your CISER home directory (Windows 2000 and XP users)
- About the CISER research VPN (Virtual Private Network)
- Creating Custom Application Startup Icons
How to Use the CISER Research Nodes: File Management: Compression
COMPRESSING FILES
To conserve disk space on the CISER research nodes, users should compress large files in their directories while those files are not actively in use. There are several ways to accomplish this.
- The recommended way to compress SAS datasets is to use SAS to create compressed observations. For instructions on how to do this, please see: http://ciser.cornell.edu/FAQ/SAS/new_compress.shtml.
- There are three methods of file compression that are available on all of the CISER research nodes, with may be used on any type of file:
- The "Windows Compression" utility, which is used from Windows Explorer:
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This method very easy to use, but it is platform dependent. Files that are compressed in this manner may be used in their compressed state by most software packages on CISER Research. Unless the user makes changes to their Windows folder options, the only way to determine if a file is compressed is to check its properties, because the file name remains unchanged. For more information about using this utility please see: CISER Research_c5aa.shtml.
- The "GZIP / GUNZIP" utility, which is used in a Command Prompt interface:
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This method is platform independent. Files that are gzipped can be copied to any other operating system and uncompressed by many different software packages including gzip, WinZIP, Stuffit Expander, and 7-Zip. However, files must be uncompressed before they can be used by software packages on CISER Research. Compressed files receive a ".gz" extension so it's obvious if they are compressed. This method usually produces the best compression ratio. For more information about using this utility please see CISER Research_c5ab.shtml.
- The "WinZip" utility:
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WinZip is a popular compression utility which creates zipped archives with a .zip extension. Each file can be compressed separately, or a group of files can be compressed together into one zipped file. The WinZip interface is available on each CISER Research node's Programs menu. For more information about using this utility go to "Programs->WinZip->Help Manual" on any CISER Research node.
