Difference between revisions of "Notices"
 
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== Unplanned service outages ==
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<!--  *************** BEGIN ACTIVE NOTICES **************************** -->
  
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== {{red|CS IT STAFF AVAILABILITY}} ==
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*  The CS IT Support staff operates out of 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 are 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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* 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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<br><p>
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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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=== UNPLANNED ''JHU'' SERVICE OUTAGES ===
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-->
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== {{red|CS IT SERVICE OUTAGES (Unplanned & Planned)}} ==
  
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''gradx.cs.jhu.edu'' - Down at this time.  Hardware issues.  Undergoing troubleshooting to determine the source of the problem.
 
  
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=== UNPLANNED CS IT SERVICE OUTAGES ===
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:None at this time.
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<!--
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{{outage
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  |services=mail
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  |time=Wednesday, February 18, starting around 11:15 am
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  |summary=There is an issue with the mail server that we're investigating.  You might be unable to check or store mail messages until the problem is fixed.
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  |update=As of about 11:45 am, we believe we've fixed the problem.
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}}
 
-->
 
-->
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<br>
  
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None at this time.
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=== PLANNED CS IT SERVICE OUTAGES ===
  
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== Planned outages ==
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<!--:None at this time.-->
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<!--None at this time. -->
 
  
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'''Tues, 10/29/13 4pm''' - JHU Networking needs to reboot our Croft and Shaffer network switches to activate a new OS for each. They expect the entire process to be close to '''5 minutes''', but no more than '''10 minutes'''. During that time, you probably will lose network connectivity to the CS wallports and our servers.
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====(Potential) Outage #1====
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:'''WHAT:''' Potential CS IT service outages due to a JHU-planned cooling outage in our server room...
  
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<!-- 9/14/13 - 10pm to 11pm - To correct a problem with one of the CS routers maintained by JHU, JHU Networking will be performing a router upgrade this Saturday evening, '''9/14/13''', '''from 10pm to 11pm.'''  They expect that during the reload of the router, there will be an outage '''''(Croft Hall/Shaffer CS networks)''''' of approx 10 to 15 minutes.
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:'''WHEN:''' Saturday, Feb. 21, 8pm until Sunday, Feb. 22 4am.
  
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This will essentially affect all our CS machines in the building that are hard-wired to the CS Network. -->
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:'''DETAILS:'''  JHU Facilities just announced to us that they will be performing a chilled water outage from this Saturday (2/21) at 8pm until Sunday (2/22) at 4am.  When this happens, our CS server room loses cooling ability, and that can negatively/adversely affect our server hardware.  Without cooling '''we may need''' to resort to shutting down a variety of our servers (and their services) to protect them from overheating.
  
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:If you notice any of our CS IT services become unavailable Saturday evening into Sunday, it might be due to the cooling outage.  Check back here for updates.
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<br>
  
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====Outage #2====
  
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:'''WHAT:''' Major CS Grad/Research Net & Ugrad Net IT services outage to perform maintenance on a server...
  
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:'''WHEN:''' Tuesday, February 24, from 6am to 8am.
  
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<!--
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:'''DETAILS:'''  We need to perform some maintenance on one of our servers.  This will take approximately 2 hours to complete. During this time, several our of Grad/Research Net and Ugrad 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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*    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 from our lab computers or compute servers.)
  
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**************************  MINOR OUTAGE TEMPLATE BEGIN  *******************************
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*   IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
  
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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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*    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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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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*    All CS Linux user accounts and home directories on both the Grad/Research and Ugrad Nets will be inaccessible during the service outage.
  
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**************************  MINOR OUTAGE TEMPLATE END  *******************************
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*   ssh service to our Grad and Ugrad Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
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-->
 
  
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<!--
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*    Console (desktop) access at any of our Linux client systems will be unavailable.
  
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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 OUTAGE TEMPLATE BEGIN  ********************************
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*   MySQL service via the mysql.cs.jhu.edu server 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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If there are any unexpected complications during the configuration changes that will delay the restoration of services, we will update the CS IT Support Wiki's Notices page at: https://support.cs.jhu.edu/wiki/Notices
  
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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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<!--
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{{outage
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  |type=Planned outage
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  |time=Wednesday, January 14 and Thursday, January 15
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  |services=gradz and ugradz
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  |summary=We will need to shut down two of our [[:Category:Linux Clients|Linux clients]] for maintenance.  The two clients are gradz and ugradz.  They might be unavailable for as much as two days, depending on how long the maintenance takes.  Please use our other Linux clients during the maintenance window.}}
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-->
  
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During that time, the following services will be ''unavailable'':
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<!--
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==== CS Labs/Systems Will Be Unavailable ====
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:'''WHAT:''' Malone Hall MH 122 '''and''' Malone Hall G61, both the Masters and Ugrad sides of the lab, and ''all'' the lab Linux computers, will be closed to CS students due to an ACM Programming Contest.
  
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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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:'''WHEN:'''  Starting Friday evening, November 7, 5pm '''through''' Saturday, November 8, 9pm.
  
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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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:'''DETAILS:'''  
  
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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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: Both the MH 122 '''and''' G61 Masters and Ugrad Labs will be used for an ACM Programming Contest and will therefore be '''''closed''''' to those not participating in the contest.
  
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* ''Grad/Research Net user accounts/home directories will be inaccessible'' during the downtime.
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: Additionally, all of the labs' Linux computers (masters1 through masters16 and ugrad1 through ugrad24) will be unavailable during the time period referenced above.
  
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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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* During the lab closure times, compute servers, gradx.cs.jhu.edu, gradz.cs.jhu.edu, ugradx.cs.jhu.ed, and ugradz.cs.jhu.edu  '''''will continue to be available remotely''''', via SSH.
  
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* ''peregrine.cs.jhu.edu (our Solaris login server) will be unavailable''
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* We have to take down the lab systems late that Friday afternoon.  At the end of the ACM contest that Saturday night, the coordinators of that contest will be turning our lab computer systems back on.  Most should boot normally.  But, if some do not, just trying using an alternate one in the lab.  We'll be back in the Monday afterwards and can check on any systems that didn't boot normally. (And don't forget, as mentioned above our compute servers -- gradx, gradz, ugradx, ugradz -- will continue to be remotely available, even if the lab systems are not.)
  
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* ''Our mysql server, mysql.cs.jhu.edu, will be unavailable.''
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* The printers in MH 122 and MH G61 will remain online, but, please pick up your printouts outside of the contest hours.
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-->
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<!--
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==== Scheduled Networking Outage on the Malone Ground Floor ====
  
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* ''Samba shares will be unavailable.''
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:'''WHAT:''' WiFi and Ethernet connections will not be available on the ground floor of Malone Hall during an upcoming JHU-planned networking outage.
  
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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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:'''WHEN:'''  JHU's Planned Network Outage – Wednesday, August 27, 2025, from 8pm through midnight.
  
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******************** MAJOR OUTAGE TEMPLATE END ********************************
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:'''DESCRIPTION:''' JHU is planning a network outage at Malone Hall to install new networking equipment. The outage will start at 8:00 pm and is expected to last between two and four hours. During the outage, the wireless access points on the ground floor will be offline, as will most of the Ethernet jacks.  Please be prepared to not have any network connectivity on the Malone ground floor during this time.
  
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:Ethernet connections in the Malone server room, G29, will not be affected by this outage.  Any servers in G29 should remain accessible.  The Linux clients and Ethernet jacks in room G61, which contains the ground floor masters and undergrad labs, will not be affected either.  (But any laptops brought into G61 during the outage probably won't be able to access the wireless network.)
 
-->
 
-->
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<br>
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== {{red|CS COMPUTING LAB AVAILABILITY}} ==
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<!--  ***** NORMAL POSTING MH 122****** -->
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:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access,
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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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<br>
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== {{red|AUDIO/VISUAL (A/V) OUTAGES}} ==
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:None at this time.
  
 
[[Category:All]]
 
[[Category:All]]

Latest revision as of 18:59, 18 February 2026


CS IT STAFF AVAILABILITY

  • The CS IT Support staff operates out of 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 are 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.
  • 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.


CS IT SERVICE OUTAGES (Unplanned & Planned)

UNPLANNED CS IT SERVICE OUTAGES

None at this time.


PLANNED CS IT SERVICE OUTAGES

(Potential) Outage #1

WHAT: Potential CS IT service outages due to a JHU-planned cooling outage in our server room...
WHEN: Saturday, Feb. 21, 8pm until Sunday, Feb. 22 4am.
DETAILS: JHU Facilities just announced to us that they will be performing a chilled water outage from this Saturday (2/21) at 8pm until Sunday (2/22) at 4am. When this happens, our CS server room loses cooling ability, and that can negatively/adversely affect our server hardware. Without cooling we may need to resort to shutting down a variety of our servers (and their services) to protect them from overheating.
If you notice any of our CS IT services become unavailable Saturday evening into Sunday, it might be due to the cooling outage. Check back here for updates.


Outage #2

WHAT: Major CS Grad/Research Net & Ugrad Net IT services outage to perform maintenance on a server...
WHEN: Tuesday, February 24, from 6am to 8am.
DETAILS: We need to perform some maintenance on one of our servers. This will take approximately 2 hours to complete. During this time, several our of Grad/Research Net and Ugrad 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 from 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 on both the Grad/Research and Ugrad Nets will be inaccessible during the service outage.
  • ssh service to our Grad and Ugrad Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
  • Console (desktop) access at any of our Linux client systems 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.

If there are any unexpected complications during the configuration changes that will delay the restoration of services, we will update the CS IT Support Wiki's Notices page at: https://support.cs.jhu.edu/wiki/Notices



CS COMPUTING LAB AVAILABILITY

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.