Misc FAQ's

Enterprise software is available for the following: How can I: Other
How can I be notified of service outages?

Several different methods exist for receiving outage notifications for EAS and ITaP resources. The ITaP Notification Service enables users to be notified by email in event of a service outage on a specific ITaP service. You have the ability to select the ITaP services on which to receive notifications. Service selection offerings include: RCAC Pete Cluster, ITaP Data Network, VPN, ITaP Labs, etc.

You may sign up for service notifications at: http://www.itap.purdue.edu/infrastructure/operations/change/

Hypocenter file shares and EAS printing are included in ITaP's outage notification service. For other EAS resources, there is currently no automated outage notification system. Scheduled outages will be publicized in the EAS newsletter and on the EAS Technology Support website. Unscheduled outages will be announced via a "TECHNOLOGY UPDATE" e-mail, which will also be posted on the EAS Technology Support website, if available.

How can I protect my data from loss?

For most people, data loss is more than just an inconvenience. In the blink of an eye, years of research can be lost. Data that is lost can be difficult or impossible to replace. So how do you protect your data from loss?

The best way to protect your data is to have multiple copies stored in separate locations. The ideal place to store data is on the EAS file server, hypocenter. Hypocenter has a disk configuration that preserves data in case of a drive failure. It also has a battery backup to help protect against file corruption caused by a sudden loss of power. In addition, hypocenter receives nightly backups, in which files are copied to a tape archive in another part of campus. The files are even copied to multiple tapes in order to reduce the chance of data loss.

The most common cause of lost data is accidental deletion and saving undesired edits. This is another scenario where hypocenter saves the day. If you accidentally delete or modify files on hypocenter, you have up to 30 days to get them restored from the tape backups.

So what about files stored locally? Whenever possible, files should not be kept on local drives (C:, for example) unless they are scratch files and not intended for long term storage. Hard drive failures do happen, often with very little notice. Once a drive has failed, it can be very expensive to recover data, and some files may be gone for good. For desktop users, this is less of a concern, since hypocenter is readily available. Laptop users don't always have this luxury (although by connecting to the campus VPN, you can access hypocenter files away from campus). For your laptop files, copying to a CD/DVD or an external hard drive provides extra security for your data. Be sure to keep them stored in a safe location.

The EAS IT staff works hard to ensure that there's always a safe home for your data. If you have any questions, please don't hestitate to ask us.

How can I receive a large file from someone outside Purdue? Is there a place they can send it to me via anonymous FTP?

Currently, the EAS department does not have a FTP location for uploads. Anonymous FTP uploads are a major security risk; however there are several options available.

  • Have your colleague post the file(s) on a site for FTP download
    Anonymous FTP download is much less of a security risk than upload. If the person sending you the file has access to an FTP site that allows anonymous download, that would be preferable.

  • Have your colleague post the file(s) on a site for HTTP download.
    If the person sending you the file has access to a WWW server, the files can be posted there for you to download with your web browser.

  • Create an account on the EAS SFTP server.
    If you expect to frequently exchange files, an account on the EAS SFTP server (sftp.eas.purdue.edu) may be the best solution. This is a three step process:
    • Request an account on the EAS SFTP server
    • Fill out a Request For Privileges form to create a Purdue ID for your colleague (available from the EAS Business Office)
    • Request access to your SFTP account for your colleague

    To start this process, please send an e-mail to eas-help@purdue.edu.

What are the usage guidelines for the 4th floor lab scratch space server?

The scratch space server (scratch.eas.purdue.edu) is a resource for students who need additional space in order to complete assignments in the 4th floor lab. This space is available to all Linux machines in CIVL 4247 in: /class/scratch/a

Current quotas are 10 GB per user. All data is removed at the end of each semester. Quotas are subject to change based on usage.

Since this space is intended for short-term use, it is not backed up and is subject to loss in the event of a disk failure. Access is only via NFS mount in the lab.

For students:

It is suggested that you create a directory in /class/scratch/a with your username as the name of the directory. You can then store your files in there. This helps to ensure that the disk structure remains simple and understandable.

When you have completed your work, you should submit your results in the manner prescribed by your instructor immediately. If you have no need of your working files, you should remove them to maximize the space available to other users.

For instructors:

Because the space on scratch is volatile, it is not suggested that instructional materials be stored there. Class materials (including source code, instructions, etc) should be in /class/hypocenter/a.

I need to purchase a new workstation. What is recommended?

When purchasing a new workstation, EAS IT support recommends utilizing the discounts available at Purdue's SMARTcomputing website. There are offerings for both desktop and laptop systems.

The base desktop configuration is currently a Dell Optiplex 780 workstation with:
(Note: Upgrades are available for many options.)

  • 3.0GHz processor
  • 4GB memory
  • 160GB SATA drive
  • 19" flat screen display
  • 4 year onsite service warranty

The SMARTcomputing website may be found at:

   http://www.purdue.edu/smartcomputing/hardwaresoftware.cfm

Purdue campus wide SMARTcomputing Program provides standardized support for deploying computers and maintaining up-to-date applications and security software. The program allows each IT support unit to share software support tasks across the campus and is expected make support more efficient. SMARTcomputing promotes purchasing a limited number of computer models, which will further enable EAS IT staff to provide more effective technical support and better turnaround time for hardware and software related issues.

Please contact the EAS Technology Support staff when considering a new computer purchase. We would be happy to assist with configuring a workstation which meets your needs and to help locate the best discounts.

 


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