Chapter 2. Requirements and Restrictions
This chapter describes the requirements and restrictions for use of the MSS FTP Service.
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Only persons with a valid assigned NCAR scientist number and project(s),
along with MSS access permission may use the MSS.
There is no guest (anonymous) access.
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You must have a UCAR Central Authentication Services (UCAS) account and password to access
the MSS FTP Service. If you do not have one or are not sure if you do
have one, submit a request to CISL Customer Support (see CISL Customer Support web site for contact methods).
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Normal MSS GAU charges will apply.
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Access to the MSS top level directory is prohibited, just
as with the DCS interface.
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Files may be read, created or rewritten assuming you have
permission to do so. MSS file password protection works
the same as with the DCS interface.
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File and directory listings can be obtained, subject to
any restrictions of your FTP Client.
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Files as large as the MSS maximum file size may be transferred.
Currently this is 100,000,000,000 (100 billion) bytes. However,
when writing a file to the MSS, you must give the
ALLO command prior to the
STOR command if the file is larger
than 500,000,000 (500 million) bytes.
See the section called “Writing a File to the MSS.” for how to accomplish this.
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There is a limit to the number of simultaneous FTP sessions
that may be active at a single time. Inactive (idle) sessions
will time out and be closed after a short period of time.