============================================================================== Mount Holyoke College Server Filespaces Michael A Crowley 9apr99,5Nov03 File Spaces ------------------------------------------------------------------------------ There are a number of different disk areas on the Mount Holyoke College computer servers to which you may have access. These filespaces are set up for specific purposes and functions; therefore, not everyone has access to all the filespaces. Each of these filespaces has its own limits (quotas) for each individual. This document will provide a kind of roadmap to these spaces. ------------------------------------------------------------------------------ A Terminology/Glossary section may be found at the end of this document. ============================================================================== Filespaces by function: Private space: home ------------ Home directory (with saved email) inbox ----------- Incoming email classwork ------- Space for academic purposes only provided to current Mount Holyoke College students. Space cleared after graduation. World Public space (may be read by anyone in the world unless special, oncampus restrictions are applied): world ----------- Personal Web space world/classweb --- Web space for assigned course materials web ------------- College web space. web/courses ----- Faculty course space for world wide web distribution. Campus Public space (may be read by anyone on campus): oncampus/courses - Faculty course space for on-campus distribution and use only. (Non-web) oncampus/depts --- Space for distribution of departmental materials on campus only. (Non-web) distribution - --- For distribution of software Semi-Private space (may be read by fellow group members): workgroups/depts - Restricted group space for departments workgroups/rch --- Group space for research. May or may not be group restricted. workgroups/proj -- Group space for projects. May or may not be group restricted. ============================================================================== Access methods UNIX -- Interactive shell logins and ftp (or fetch) logins: When using ssh or sftp, you must move from folder to folder by using the "cd" command to "change directory". The final location is known as the full "path" to the file or directory, a term that may be used in graphical ftp programs. We recommend using a secure FTP such as WinScp. (The "see access" document describes where to get this Windows program.) When using ssh, you need to be at the shell system prompt (usually the prompt with "%"). You cannot have the "welcome menu" running; quit the welcome menu. Note -- it is useful after entering a "cd" command to enter the command: dir in order to get a list of files and directories. Unlike opening a folder in Windows or a Macintosh, you have to ask for the list of files. Windows Map a network drive to the service indicated. The drive letter you select is arbitrary, but we recommend using "H:" for your home directory. For Windows systems, if you have not entered your username in the Windows login dialog box, you may need to attach "%USERNAME" to the services that do not include your username. For example, csmith might have to enter: \\www\web%csmith rather than just \\www\web. Macintosh For all Macintosh services, look in "(Mount Holyoke College)" zone. The service you log into may have several choices shown below after the comma. For example, in "Webspace" you can either connect to a service called by your username or a service called "webspace". After opening the window for that service, you might still need to open a folder within that window. Service type UNIX shell/ftp Windows Macintosh ~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~ Private: HOME cd \\mhc\USERNAME Home Directories classwork cd classwork \\mhc\USERNAME Home Directories Folder: classwork Folder: classwork Public to world: world cd /world/usern \\ambr\world Webspace, {username} world/classweb cd classweb \\ambr\world Webspace, {username} web cd /web \\ambr\web Webspace, webspace web courses cd /webcourses; \\ambr\webcourses Webspace, webspace (contains cd {username} Folders: courses, Folders: courses, faculty usernames) {username} {username} Public to campus: oncampus courses cd /oncampus \\ambr\courses OnCampus-AMBR, courses cd courses oncampus depts cd /oncampus \\ambr\pubdepts OnCampus-AMBR, depts cd depts Software distribution -- \\ambr\distribution Software distribution Semipublic, semiprivate, or workgroup: dept workgroup cd /workgroups \\ambr\depts Workgroups-AMBR, depts cd depts research cd /workgroups \\ambr\rch Workgroups-AMBR, proj cd rch project cd /workgroups \\ambr\proj Workgroups-AMBR, proj cd proj ------------------------------------------------------------------------------ Notes to Windows users: 1. If you can map network drives to MHC but cannot to WWW, it is likely the computer TCP/IP setup is incomplete. The Windows setup document in: http://www.mtholyoke.edu/lits/network/resnet provides details of the TCP/IP setup. Pay close attention to the settings of the DNS tab. In sort, DNS must be enabled and the domain name is "mtholyoke.edu". 2. Although you might be able to get to your personal home web pages from mapping your HOME directory and going into the "world" directory, mapping to \\mhc\USERNAME instead of \\ambr\world will use the wrong file permissions. (In May 2002 we discontinued creating new accounts with a link to /world/USERNAME from the HOME directory.) The wrong permissions will make the pages unreadable until the nightly script which corrects file permissions is run (and then it will send you an email). For details on file permissions, enter the MHC command: see permissions ------------------------------------------------------------------------------ Notes to UNIX users -- changing directories: In shell (telnet,ssh) sessions, when using the "cd" command to get around, you may need to get back to your HOME directory -- the location you begin with when you first log in. To get back to your HOME directory, simply enter the command: cd For more information, at the MHC system prompt, enter: see cd If you change directories a great deal, you might consider using the MHC commands: here sub go Details are in the "see cd" document. ============================================================================== Output of the UNIX command "quota" on mhc.mtholyoke.edu There are automatic email messages that are sent if you exceed quota on a filesystem. These filesystems are listed as their UNIX names and so are related to the "access via UNIX" table above; a glossary of these filesystems are also listed below. If you enter the command "quota" when logged into mhc.mtholyoke.edu, you will see a list of filesystems in which you have information stored. Here is a typical output from the "quota" command run by a student. Note that there are no quotas on numbers of files. Quotas are set by amount of storage in bytes, listed below as "blocks" ("7500" represents "7.5 Megabytes"). Filesystem blocks quota limit grace files quota limit grace /s 5300 7500 15000 164 0 0 /classwork 31033 50000 70000 3 0 0 /mail 32 50000 70000 1 0 0 /web 41905* 30000 70000 3 days 89 0 0 /world 225 20000 40000 6 0 0 /webcourses 1322 20000 40000 6 0 0 /users 1 7500 15000 1 0 0 Notes: /s The /s filesystem contains student HOME directories. Others will have HOME directories in different file systems. For example, faculty are in /u5. The HOME directory where email and other files might be saved. /classwork Notice that the potential space here is high, but its purpose is only for academic materials and is only good when the individual is enrolled. /mail This is where the person's INBOX (incoming email) resides. /web This is a filesystem for the college web space. Note that the individual is OVER QUOTA in this file system. For three more days (the remaining "grace period"), if nothing is done, she may store up to 70 Meg of material. After the grace period is over, nothing more above 30 Meg can be stored. /world This is the filesystem for her personal home pages. She has very little here. /users This sometimes shows up for students or others when their HOME directory is in another location, such as /s, /alum, /u2, /u5. In this case the individual has a single public mailing list. ============================================================================== Glossary of filesystems: Here are a list of filesystems in which you might have information. It also lists the function of each file system. If you have done a quota command and wonder about the spaces you might have information, you should be able to find it below along with the explanation of the space. /users This contains user HOME directories for staff and some faculty. It also contains distribution list files owned by some individuals. /s This is the filesystem with the HOME directories of current students. /u2 /u3 /u5 These are other filesystems for HOME directories. Faculty are mostly in /u5. /alum This is the filesystem with the HOME directories of graduated alumnae. /mail This is the filesystem which contains the INBOX for all users. This is the location where one's incoming email is stored. /classwork This filesystem is provided to currently enrolled students exclusively for the purpose of academic-related information or projects. It is "linked" from the student HOME directory. /web This filesystem contains the entire college webspace. This includes student organization pages, departmental pages, and other areas in the college web server. Faculty web course area is accessed from here, but is in its own filesystem, /webcourses /world This filesystem contains the personal home web pages. /oncampus/courses This filesystem contains faculty "course" space for on-campus distribution only. It is not web served as the /web/courses area is. /webcourses This is the faculty web courses area available as /web/courses, but which resides here on its own file system. /workgroups/rch1 /workgroups/rch2 These filesystems are used for faculty and student research projects. /workgroups/depts This filesystem contains space for academic and administrative departments. /a/mhc/u1 /a/ambr/u1 /a/ambr/u2 /a/ambr/slab These filesystems are used for the specialized HOME directories found on various smaller workstations, such as the Chemistry SGIs or some of the workstations in Math and Statistics. ============================================================================== Terminology/Glossary: (You might want to skim past these on a first reading.) filesystem ----- A term referring to all the files and directories on a disk or disk partition. Each server filesystem has its own quotas (disk space limits) for each individual. There are many directories and files on a filesystem. Your personal computer hard disk could be referred to as a filesystem; each diskette you have could also be called a filesystem. directory ------ A collection of files and/or other directories. Often also referred to as a "folder". file ----------- A single entity stored on disk, although a file may contain a number of subunits. For example, an email file may contain hundreds of different email messages. folder --------- An alternative name for a "directory". However, email files, containing many email messages, are also sometimes referred to as "email folders" even though they are files with subunits (email messages) in them. home directory - When you initially log into a computer, you are in your "home directory" (also referred to simply as "HOME"). HOME contains your files and directories, including a "mail" directory where saved email files (folders) are stored. It also contains "links" and dot files. HOME does _not_ contain your INBOX -- your incoming mail folder. INBOX is on another filesystem entirely. dot files ------ Note, your HOME directory contains "dot files" -- files beginning with a period, such as .cshrc, .login, .pinerc, .newsrc. Never alter those files unless you know what you are doing. Never delete them! Your account may not start up properly if any of these files are removed. link ----------- Links (or more strictly speaking, symbolic links) are often used to tie filesystems together. A link may look like a directory, but that directory may be on another filesystem or even another computer system. The link to "classwork" is a commonly used link for students that allows one to move from the HOME directory to the classwork directory. quota ---------- A quota is a limit of how much space you can use on a filesystem. Normally there are two elements to quotas: * hard quota or limit: This is the absolute limit of space. You cannot exceed this. * soft quota: This basic quota can be exceeded for a certain time or "grace period". After the grace period expires, you cannot exceed this quota. ============================================================================== Related information: see accountspace or http://www.mtholyoke.edu/lits/network/doc/accountspace.txt (The "see" method is used in the "Help/See Documents" section of Webshell.) ==============================================================================