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Imager Technical Information |
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Account Expiration
modified: 04 Oct 2007 |
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- There are 3 things associated with a person: the account, the home directory, and the imager filespace in /imager/people/. When a person's account expires, this procedure applies only to the person's imager filespace. Tech staff will have a semi-automatic way of deleting/archiving a user's imager filespace according to the user's type. When accounts are first created, they are assigned an expiration date. When the expiration date is reached, the supervisor receives a notification email requesting confirmation for account archival/deletion. After supervisor confirmation, any undergrad or masters account exists for a time period of 12 months before any archiving/deleting happens. The time period of 12 months is reasonable since any upcoming paper deadline would have come within 12 months of the account's expiration. Note that it is still expected that students make sure their important files are archived elsewhere before they leave.
- Undergraduate Interns: Accounts can be deleted after 12 months without archiving. Rationale: the accounts are usually too shortlived to accumulate lots of information that could be useful later. It is relatively easy to transfer whatever there is to a project directory as a checkout procedure on the day the student leaves.
- Visiting Researchers, Postdocs: These should not be automatically archived or deleted, since most collaborations continue for many years. However, when they are finally ready to be deleted, they should to be archived. Yearly reminders will be sent to supervisors. Rationale: this group knows to pull all important information to wherever they currently are. Also, there may be privacy issues with some of this data, more so than with the other user groups.
- PhD students: These should never be deleted, although pressure to reduce disk usage can be applied (preferably by the supervisor). Rationale: PhD students spend a significant portion of their life here, and their email is listed as contact on (hopefully many) papers. In many cases they continue to collaborate with their former supervisor or fellow students.
- M.Sc students: These accounts should be archived after 12 months. (i.e. disable the account but keep the contents). Rationale: M.Sc students stay for too short a period to reasonably expect that their account will remain forever, yet sometimes their accounts contain important project data. Ideally that would be in /imager/project or similar directories, but in practice that is not always the case, so keeping an archive makes sense.
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- There are 3 things associated with a person: the account, the home directory, and the imager filespace in /imager/people/. When a person's account expires, this procedure applies only to the person's imager filespace. Tech staff will have a semi-automatic way of deleting/archiving a user's imager filespace according to the user's type. When accounts are first created, they are assigned an expiration date. When the expiration date is reached, the supervisor receives a notification email requesting confirmation for account archival/deletion. After supervisor confirmation, the account will expire. The files will be chown'd to the supervisor in a "purgatory" archive for 12 months before they are permanently deleted. While students should make sure their important files are archived in the right place before they leave, this policy is meant to handle the reality that this does not always occur. The time period of 12 months was chosen since many paper deadlines are annual conferences, so it's likely that the need to hunt down files would happen within the year window. This policy covers both undergraduate interns and MSc students.
- Visitors/postdocs and PhD student accounts will never be automatically deleted. Yearly reminders of active visitor accounts will be sent to supervisors, since most collaborations continue for many years. When a supervisor decides that a visitor account is no longer required and should be deleted, they should to be archived with the same 12-month purgatory process as above. After PhD students graduate, accounts should stay active, although pressure to reduce disk usage can be applied (preferably by the supervisor). Rationale: PhD students spend a significant portion of their life here, and their email is listed as contact on (hopefully many) papers. In many cases they continue to collaborate with their former supervisor or fellow students.
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Hardware Purchase Procedure
modified: 04 Oct 2007 |
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- When purchasing new hardware, email Ming, Glen Lee, Dave Brent, and Ciaran Llachlan with the specifications.
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- When purchasing new hardware, email Ming Lau, Glen Lee, Dave Brent, and Ciaran Llachlan Leavitt with the specifications (mlau,glee,brent,llachlan).
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