Difference between revisions of "Notices"

 
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== {{red|JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES}} ==  
 
== {{red|JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES}} ==  
 
=== PLANNED ''JHU'' SERVICE OUTAGES ===
 
=== PLANNED ''JHU'' SERVICE OUTAGES ===
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====JHU Planned Sporadic Network Outages, 6/28/25 from 9am to 4pm====
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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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=== UNPLANNED ''JHU'' SERVICE OUTAGES ===
 
=== UNPLANNED ''JHU'' SERVICE OUTAGES ===
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:None at this time.
 
:None at this time.
 
  
 
=== PLANNED CS IT SERVICE OUTAGES ===
 
=== PLANNED CS IT SERVICE OUTAGES ===
 
:None at this time.
 
  
  
==== {{red|'''OUTAGE:  MAJOR CS ''UGRAD'' NET IT SERVICES OUTAGE'''}}====
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===={{red|'''OUTAGE:  A NEW MAJOR ''GRAD/RESEARCH'' NET CS IT SERVICES OUTAGE'''}}====
  
'''WHAT:''' Most CS IT ''Ugrad'' Net services will be ''unavailable'' due to file server maintenance.
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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...
  
'''WHEN:''' Wednesday, September 18, from 5am to 8am.
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'''WHEN:''' Thursday, June 26, 2025 from 5am to 7am.
  
: {{red|'''NOTE:''' The info below ''only'' refers to the CS Ugrad Net systems, '''not''' to the CS Grad Net systems, which will remain running and unaffected. }}
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'''UPDATE:''' As of 6:15 am, all CS services have been restored.
  
'''DETAILS:''' We will be performing a required upgrade on our '''''Ugrad''' Net's''  file server that affects all our CS Ugrad Linux systems including all those in the CS Ugrad Labs, the Ugrad compute servers (including ugradx and ugradz) and some additional CS ''Ugrad'' IT services (and will ultimately affect CS Ugrad students and their instructors who use those systems.)
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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.
  
The affected IT services will be unavailable on Wednesday morning, September 18, from 5am to 8am.   Please see below for the list of affected services.
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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:'''
  
'''CS IT Services That Will ''Not'' Be Available During The File Server Upgrade:'''
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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.)
  
* CS Ugrad Mail service, both incoming and outgoing, will be suspended for CS Ugrad Net users.
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* IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
  
* Incoming CS Ugrad mail should be queued by the sender until our mail service is back up again. Outgoing mail will not be
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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.
available.
 
  
* IMAP, POP, and Webmail from our CS (Ugrad Net) Mail server will be unavailable.
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<!-- * The CS staff documentation website will be unavailable. -->
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* All CS Linux user accounts and home directories will be inaccessible during the service outage.
  
* CS Ugrad Net webpages will be unavailable.
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* ssh service to our Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
  
* CS Ugrad Net user accounts/home directories will be inaccessible during the downtime.
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* Console (desktop) access at any of our Lab Linux client systems (Grad/Ugrad) will be unavailable.
  
* ssh service to our CS Ugrad Net Linux boxes (ugrad1 through ugrad24, ugradx, and ugradz) will be unavailable.
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* SMB (SAMBA) File Shares (the CS Office Staff and some others use these) will be unavailable.
  
* Console (desktop) access to ugrad1 through ugrad24 will be unavailable.
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* MySQL service via the mysql.cs.jhu.edu server will be unavailable.
  
* MySQL service via the dbase.cs.jhu.edu server (Dr. Yarowsky's class) will be unavailable.
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Updates will be displayed on this page.
  
If there are any unexpected complications during the reboot process that will delay the restoration of services, we
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<!-- :None at this time. -->
will update this Notices page.  
 
  
<!--the CS IT Support Wiki's Notices page at:  https://support.cs.jhu.edu/wiki/Notices -->
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<br>
  
 
== {{red|CS COMPUTING LAB AVAILABILITY}} ==
 
== {{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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<!--  ***** NORMAL POSTING MH 122****** -->
 
<!--  ***** NORMAL POSTING MH 122****** -->
  
;:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access.
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:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access.
  
 
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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.