Difference between revisions of "Notices"
 
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== UNPLANNED SERVICE OUTAGES ==
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<!--  *************** BEGIN ACTIVE NOTICES **************************** -->
  
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None at this time.
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== {{red|CS IT STAFF AVAILABILITY}} ==
  
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== PLANNED OUTAGES ==
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*  The CS IT Support staff is back in Malone Hall. Our group is working a hybrid schedule with some of us working remotely on certain days, while others of our team are on campus. 
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* We continue being available M-F, 8:30 to 5pm, but there may be certain times we might be online only.
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*  Therefore, please remember to email [mailto:support@cs.jhu.edu support@cs.jhu.edu] for assistance.
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*  Also, please have [https://support.cs.jhu.edu/wiki/Zoom Zoom] available on your device(s), so that we can arrange to contact you using that method, as an alternative to in-person communication.
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* For the time being, Steve DeBlasio, our accounts liaison, is providing a virtual version of his daily office hours for accounts, etc.  Email [mailto:support@cs.jhu.edu support@cs.jhu.edu] for details.
  
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===CS Undergrad Net Outage Scheduled===
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<br><p>
  
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'''WHEN:'''  Wednesday, 1/21, from 5am to Noon.
 
  
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'''WHAT:'''  We need to do an important repair, as well as maintenance on the CS Undergrad home directory disk array.  This will require us to take the disk array offline for several hours to accomplish these tasks.  Since this disk array is integral to the operations of the CS Ugrad network, '''''the entire CS Undergrad Net will be down and unavailable'' starting at 5am on Wednesday, January 21 and lasting most of the morning.''' 
 
  
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'''HOW THIS MAY AFFECT YOU:'''  On ''January 21'' from ''5am to noon'' (or perhaps earlier than noon), ''all'' of the CS Undergrad Lab client Linux computers (ugrad1 through ugrad24 and ugradx) will be unavailable during this time.  You will ''not'' be able to access your CS Ugrad Net home directory files during this time.  Also, both the CS Undergrad web server and the CS Undergrad mail server ''will be down'' during this time as well.  Mail to the CS Ugrad net will be queued up for delivery once the CS Ugrad mail server is back up.
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== {{red|JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES}} ==
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=== PLANNED ''JHU'' SERVICE OUTAGES ===
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====JHU Planned Sporadic Network Outages, 6/28/25 from 9am to 4pm====
  
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(For Grad students and Faculty, the CS Grad/Research Net mail and webserver are unaffected and will remain running.)
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On Saturday June 28th starting at 9am and continuing until 4pm, the University Networking team will be replacing the existing campus core with two new Arista 7508’s. This upgrade is being done because the current core devices are very close to end-of-life and will not meet the needs of the campus into the future. The new platform will allow for greater bandwidth going forward. The first upgrade, which is part of this change, will increase the uplinks to the Enterprise network from 4x10gig connections to 4x25gig connections. Along with the upgrade to the Enterprise Network, University Networking will move all buildings that connect to the current Homewood campus core to the new campus core. This process will require sporadic but brief outages of up to 3 minutes throughout the change window. We are not anticipating any long outages, just the brief outages while we move fiber connections from one core to the other.  
  
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<!--
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=== UNPLANNED ''JHU'' SERVICE OUTAGES ===
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-->
  
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== {{red|CS IT SERVICE OUTAGES (Unplanned & Planned)}} ==
  
  
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=== UNPLANNED CS IT SERVICE OUTAGES ===
  
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<!-- EXAMPLE
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:None at this time.
  
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=== gradx.cs.jhu.edu Outage Scheduled ===
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=== PLANNED CS IT SERVICE OUTAGES ===
  
  
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'''WHEN: Monday, Feb 3, 9am to 5pm'''
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===={{red|'''OUTAGE: A NEW MAJOR ''GRAD/RESEARCH'' NET CS IT SERVICES OUTAGE'''}}====
  
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gradx.cs.jhu.edu, our Grad Net compute server (available remotely by ssh only) will be '''unavailable all day on ''Monday, Feb 3, from 9am to 5pm''''' due to it being upgraded to Fedora 20.  During this time, please use one of our [https://support.cs.jhu.edu/wiki/Linux_Clients_on_the_CS_Grad/Research_Net Grad Net Linux clients] instead.
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'''WHAT:''' A NEW Major CS Grad/Research Net IT services outage, to replace bad memory our Grad/Research Net file server...
  
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-->
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'''WHEN:''' Thursday, June 26, 2025 from 5am to 7am.
  
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'''UPDATE:''' As of 6:15 am, all CS services have been restored.
  
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'''DETAILS:''' We have to replace a bad memory module in our Grad/Research Net's home directory file server known as "rtfm.cs.jhu.edu", as that bad memory is causing issues.
  
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<!--
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This will take approximately 2 hours to complete.  During this time, several our of Grad/Research Net IT services will be unavailable.  Below is a list of the services affected...
  
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'''CS IT Services That ''Will Not Be Available'' During The Service Outage:'''
  
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************************** MINOR OUTAGE TEMPLATE BEGIN  *******************************
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* CS Mail service, both incoming and outgoing, will be suspended for CS Grad/Research Net users. And some CS email services will not be available for CS Ugrad Net users.  Incoming mail should be queued by the sender until our mail service is back up again. Outgoing CS mail will not be available to Grad/Research Net users, but since CS Ugrads can send through the JHU mail server, CS Ugrads might still be able to send email during the services outage (just not one of our lab computers or compute servers.)
  
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'''Wed, July 30, 9am through noon:'''  ''Entire Undergrad Net'' (clients and servers) will be down as we complete system maintenance and move some equipment to a different rack.
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* IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
  
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Additionally, the Ugrad Net web and mail service will be unavailable during that time.  (Incoming ugrad net mail should queue up on another of our mail servers during that time, until the ugrad mail server is back up and running and transfers the mail.)
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* No locally-stored CS webpages will be available. The main CS website (run by WSE) may or may not remain accessible.  If you have a personal or lab CS page that we maintain locally in the dept, those will be unavailable. The CS IT Support Wiki and its Notices page will remain available.
  
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**************************  MINOR OUTAGE TEMPLATE END  *******************************
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<!-- * The CS staff documentation website will be unavailable. -->
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-->
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* All CS Linux user accounts and home directories will be inaccessible during the service outage.
  
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<!--
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* ssh service to our Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
  
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* Console (desktop) access at any of our Lab Linux client systems (Grad/Ugrad) will be unavailable.
  
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********************  MAJOR OUTAGE TEMPLATE BEGIN  ********************************
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* SMB (SAMBA) File Shares (the CS Office Staff and some others use these) will be unavailable.
  
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'''MAJOR''' motherboard repair of ''rtfm.cs.jhu.edu'', one of our main CS ''Grad/Research'' Net file system servers, will create up to (but hopefully, much shorter than) 6-hour planned downtime for the Grad/Research Network.  Our hardware service/repair company will be on-site completing repairs.
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* MySQL service via the mysql.cs.jhu.edu server will be unavailable.
  
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'''Outage will begin at 12am (midnight), Thursday, 8/22, and will last until 6am (or earlier) Thursday.'''
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Updates will be displayed on this page.
  
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During that time, the following services will be ''unavailable'':
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<!-- :None at this time. -->
  
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* ''Email in or out on the Grad/Research Net will be disabled.''  (Connections to smtp.cs.jhu.edu and pop.cs.jhu.edu will fail during that time.  However, incoming mail to CS should queue at an alternative server.)
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<br>
  
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* ''Email on the Undergrad Net will be disabled during this time'' (as CS Ugrad e-mail addresses are registered via a server on the CS Grad Net.)
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== {{red|CS COMPUTING LAB AVAILABILITY}} ==
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<br>
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'''See Outage notes above regarding the computers in our labs.'''
  
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* ''DNS will only be available if you've configured your computer with a secondary DNS server.''  If you don't have a secondary server in your computer's DNS defined, please add 128.220.2.7  You may notice a delay in DNS name resolution when falling back to the secondary server.
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<!--  ***** NORMAL POSTING MH 122****** -->
  
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* ''Grad/Research Net user accounts/home directories will be inaccessible'' during the downtime.
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:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access.
  
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* ''Access to any of our Grad/Research Net linux clients (including gradx and masters1 through masters16, as well as Dr. Smith's pllab machines that we maintain) will be unavailable''
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<!--
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:'''MH 122 ''UNAVAILABILITY'''''
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* ''peregrine.cs.jhu.edu (our Solaris login server) will be unavailable''
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-->
  
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* ''Our mysql server, mysql.cs.jhu.edu, will be unavailable.''
 
  
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* ''Samba shares will be unavailable.''
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<!-- ****** NORMAL POSTING G61 ********** -->
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:'''MH G61''' (CS Masters/Ugrad Labs) is available for in-person access.
  
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* ''Your Grad/Research Net web pages will be unavailable.''  (The webserver is expected to be serving minimal pages, mostly notices, during that time.)
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<br>
  
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********************  MAJOR OUTAGE TEMPLATE END  ********************************
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== {{red|AUDIO/VISUAL (A/V) OUTAGES}} ==
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:None at this time.
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-->
 
  
 
[[Category:All]]
 
[[Category:All]]

Latest revision as of 10:09, 26 June 2025


CS IT STAFF AVAILABILITY

  • The CS IT Support staff is back in Malone Hall. Our group is working a hybrid schedule with some of us working remotely on certain days, while others of our team are on campus.
  • We continue being available M-F, 8:30 to 5pm, but there may be certain times we might be online only.
  • Therefore, please remember to email support@cs.jhu.edu for assistance.
  • Also, please have Zoom available on your device(s), so that we can arrange to contact you using that method, as an alternative to in-person communication.
  • For the time being, Steve DeBlasio, our accounts liaison, is providing a virtual version of his daily office hours for accounts, etc. Email support@cs.jhu.edu for details.


JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES

PLANNED JHU SERVICE OUTAGES

JHU Planned Sporadic Network Outages, 6/28/25 from 9am to 4pm

On Saturday June 28th starting at 9am and continuing until 4pm, the University Networking team will be replacing the existing campus core with two new Arista 7508’s. This upgrade is being done because the current core devices are very close to end-of-life and will not meet the needs of the campus into the future. The new platform will allow for greater bandwidth going forward. The first upgrade, which is part of this change, will increase the uplinks to the Enterprise network from 4x10gig connections to 4x25gig connections. Along with the upgrade to the Enterprise Network, University Networking will move all buildings that connect to the current Homewood campus core to the new campus core. This process will require sporadic but brief outages of up to 3 minutes throughout the change window. We are not anticipating any long outages, just the brief outages while we move fiber connections from one core to the other.


CS IT SERVICE OUTAGES (Unplanned & Planned)

UNPLANNED CS IT SERVICE OUTAGES

None at this time.

PLANNED CS IT SERVICE OUTAGES

OUTAGE: A NEW MAJOR GRAD/RESEARCH NET CS IT SERVICES OUTAGE

WHAT: A NEW Major CS Grad/Research Net IT services outage, to replace bad memory our Grad/Research Net file server...

WHEN: Thursday, June 26, 2025 from 5am to 7am.

UPDATE: As of 6:15 am, all CS services have been restored.

DETAILS: We have to replace a bad memory module in our Grad/Research Net's home directory file server known as "rtfm.cs.jhu.edu", as that bad memory is causing issues.

This will take approximately 2 hours to complete. During this time, several our of Grad/Research Net IT services will be unavailable. Below is a list of the services affected...

CS IT Services That Will Not Be Available During The Service Outage:

  • CS Mail service, both incoming and outgoing, will be suspended for CS Grad/Research Net users. And some CS email services will not be available for CS Ugrad Net users. Incoming mail should be queued by the sender until our mail service is back up again. Outgoing CS mail will not be available to Grad/Research Net users, but since CS Ugrads can send through the JHU mail server, CS Ugrads might still be able to send email during the services outage (just not one of our lab computers or compute servers.)
  • IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
  • No locally-stored CS webpages will be available. The main CS website (run by WSE) may or may not remain accessible. If you have a personal or lab CS page that we maintain locally in the dept, those will be unavailable. The CS IT Support Wiki and its Notices page will remain available.
  • All CS Linux user accounts and home directories will be inaccessible during the service outage.
  • ssh service to our Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
  • Console (desktop) access at any of our Lab Linux client systems (Grad/Ugrad) will be unavailable.
  • SMB (SAMBA) File Shares (the CS Office Staff and some others use these) will be unavailable.
  • MySQL service via the mysql.cs.jhu.edu server will be unavailable.

Updates will be displayed on this page.



CS COMPUTING LAB AVAILABILITY


See Outage notes above regarding the computers in our labs.


MH 122 (CS Undergrad Lab/Collaboration room) is available for in-person access.


MH G61 (CS Masters/Ugrad Labs) is available for in-person access.


AUDIO/VISUAL (A/V) OUTAGES

None at this time.