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O2 cluster logins originating from outside of the HMS network require two-factor authentication.

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Once you have an O2 account, you can login log in to the O2 cluster and submit jobs. Please reference the "Quick Start" section below to get connected to the cluster. If you need further detail on how to connect, you can refer to the appropriate section based on your operating system.

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Please do NOT send us or anyone else your password. Ever. We can assist you without knowing your password, and sharing accounts on the cluster is prohibited by Harvard security policy.

If you're having difficulty logging in to O2, make sure you're using your HMS ID and eCommons password. Your HMS ID must be in lowercase. If that does not resolve the problem, then try logging in to https://myaccount.hms.harvard.edu. Contact the IT Service Desk (itservicedesk@hms.harvard.edu, or 617-432-2000) if you're unable to login to the eCommons website. Your eCommons may have been locked due to too many failed login attempts to the O2 cluster. Once you are able to login to eCommons, wait 1 hour and try logging in to O2 again. If you're still facing problems, then send in a ticket to us.