Difference between revisions of "Notices"
 
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== {{red|JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES}} ==  
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=== 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.
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=== PLANNED CS IT SERVICE OUTAGES ===
 
=== PLANNED CS IT SERVICE OUTAGES ===
  
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===={{red|'''OUTAGE 1: MAJOR ''UGRAD'' NET CS IT SERVICES OUTAGE'''}}====
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<!--:None at this time. -->
  
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'''WHAT:''' Major CS Ugrad Net IT services outage, as we configure networking changes on our Ugrad file server...
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==== '''OUTAGE 1:''' Linux Lab Systems Not Accessible During Upgrades====
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:'''WHEN:''' Tuesday, August 19 through Friday, August 22
  
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'''WHEN:''' Tuesday, June 17, 2025, from 9am to 11am.
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:'''WHAT: '''Subsets of the CS Linux clients will be down for upgrades over the course of the week.
  
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'''DETAILS:''' Performing network configuration changes on our Ugrad Net's home directory file server known as "barley".
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:'''UPDATE:''' As of about 12:15 on Friday, all of our Linux clients have been upgraded.
  
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This will take approximately 2 hours to complete. During this time, several our of Ugrad IT services will be unavailable.  Below is a list of the services affected...
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:'''DETAILS:''' We will be upgrading our Linux clients from Fedora 40 to Fedora 42. This will require having the clients offline during the upgrades. We'll do this in stages, so there will always be some clients available at all times.
  
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=====Suspended (Unavailable) Ugrad Net services while the network configuration changes are being performed:=====
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:The lab machines whose numbers are integer multiples of five (ugrad5, ugrad10, ugrad15, ugrad20, masters5, masters10, and masters15) have already been upgraded (those are the staging systems we mentioned in a recent email to the CS faculty and students), so those will remain available throughout the week. The upgrade schedule for the remainder of the systems will be as follows:
  
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* CS Ugrad Mail service, both incoming and outgoing, will be suspended for CS Ugrad Net users.
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* On Tuesday, August 19, ugrad1 through ugrad12 (located in MH-122) will be upgraded (...except for ugrad5 and ugrad10, which are already done.)
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* On Wednesday, August 20, ugrad13 through ugrad24 and masters1 through masters16 (located in MH-G61) will be upgraded (...except for ugrad15, ugrad20, masters5, masters10, and masters15, which are already done.)
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* On Thursday, August 21, ugradx and gradx (remotely-accessible only) will be upgraded.
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* On Friday, August 22, ugradz and gradz (remotely-accessible only) will be upgraded, along with any systems we were unable to upgrade earlier in the week.  
  
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* Incoming mail should be queued by the sender until our mail service is back up again. Outgoing mail will not be available.
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:Expect each system being upgraded to be unavailable between 9:00 am and 4:00 pm on the days for which it's scheduled. If a system remains unavailable after 4:00 pm on its scheduled day, this CS IT Support Wiki's Notices page will be updated with the appropriate information.
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* IMAP, POP, and Webmail from our CS (Ugrad Net) Mail server will be unavailable.
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* CS Ugrad Net webpages will be unavailable.
 
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* CS Ugrad Net user accounts/home directories will be inaccessible during the downtime.
 
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* ssh service to our CS Ugrad Net Linux boxes (ugrad1 through ugrad24, ugradx, and ugradz) will be unavailable.
 
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* Console (desktop) access to ugrad1 through ugrad24 will be unavailable.
 
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* MySQL service via the dbase.cs.jhu.edu server (Dr. Yarowsky's class) will be unavailable.
 
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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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  ===={{red|'''OUTAGE 2:  MAJOR ''GRAD'' NET CS IT SERVICES OUTAGE'''}}====
 
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'''WHAT:''' Major CS Grad Net IT services outage, as we configure networking changes on our Grad Net file server...
 
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'''WHEN:''' Tuesday, June 24, 2025 from 5am to 7am.
 
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'''DETAILS:''' We are performing network configuration changes on our Grad Net's home directory file server known as "rtfm".
 
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This will take approximately 2 hours to complete.  During this time, several our of Grad 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 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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* IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
 
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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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<!-- * 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.
 
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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 Masters Lab Linux client systems will be unavailable.
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==== '''Outage 2:'''  Networking Outage on the Malone Ground Floor ====
  
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* SMB (SAMBA) File Shares (the CS Office Staff and some others use these) 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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* MySQL service via the mysql.cs.jhu.edu server will be unavailable.
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:'''WHEN:'''  JHU's Planned Network Outage – Wednesday, August 27, 2025, from 8pm through midnight.
  
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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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<!-- :None at 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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== {{red|CS COMPUTING LAB AVAILABILITY}} ==
 
== {{red|CS COMPUTING LAB AVAILABILITY}} ==
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'''See Outage notes above regarding the computers in our labs.'''
 
  
 
<!--  ***** NORMAL POSTING MH 122****** -->
 
<!--  ***** NORMAL POSTING MH 122****** -->
  
 
:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access.
 
:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access.
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:'''MH 122 ''UNAVAILABILITY'''''
 
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<!-- ****** NORMAL POSTING G61 ********** -->
 
<!-- ****** NORMAL POSTING G61 ********** -->

Latest revision as of 16:09, 22 August 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.


CS IT SERVICE OUTAGES (Unplanned & Planned)

UNPLANNED CS IT SERVICE OUTAGES

None at this time.


PLANNED CS IT SERVICE OUTAGES

OUTAGE 1: Linux Lab Systems Not Accessible During Upgrades

WHEN: Tuesday, August 19 through Friday, August 22
WHAT: Subsets of the CS Linux clients will be down for upgrades over the course of the week.
UPDATE: As of about 12:15 on Friday, all of our Linux clients have been upgraded.
DETAILS: We will be upgrading our Linux clients from Fedora 40 to Fedora 42. This will require having the clients offline during the upgrades. We'll do this in stages, so there will always be some clients available at all times.
The lab machines whose numbers are integer multiples of five (ugrad5, ugrad10, ugrad15, ugrad20, masters5, masters10, and masters15) have already been upgraded (those are the staging systems we mentioned in a recent email to the CS faculty and students), so those will remain available throughout the week. The upgrade schedule for the remainder of the systems will be as follows:
  • On Tuesday, August 19, ugrad1 through ugrad12 (located in MH-122) will be upgraded (...except for ugrad5 and ugrad10, which are already done.)
  • On Wednesday, August 20, ugrad13 through ugrad24 and masters1 through masters16 (located in MH-G61) will be upgraded (...except for ugrad15, ugrad20, masters5, masters10, and masters15, which are already done.)
  • On Thursday, August 21, ugradx and gradx (remotely-accessible only) will be upgraded.
  • On Friday, August 22, ugradz and gradz (remotely-accessible only) will be upgraded, along with any systems we were unable to upgrade earlier in the week.
Expect each system being upgraded to be unavailable between 9:00 am and 4:00 pm on the days for which it's scheduled. If a system remains unavailable after 4:00 pm on its scheduled day, this CS IT Support Wiki's Notices page will be updated with the appropriate information.


Outage 2: Networking Outage on the Malone Ground Floor

WHAT: WiFi and Ethernet connections will not be available on the ground floor of Malone Hall during an upcoming JHU-planned networking outage.
WHEN: JHU's Planned Network Outage – Wednesday, August 27, 2025, from 8pm through midnight.
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.
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.)


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.