[downtime] Emergency CS Storage Downtime, Wednesday, July 28, 2021,

Monday, July 26, 2021 at 12:34pm EDT by csstaff

Date: Wednesday, July 28, 2021 (09:30-11:30)

Who is affected:
All users of the CS department computing.

What is happening:
A single node of our file server cluster will be shutdown for the
replacement of a defective DIMM.

Why is it happening:
Hardware monitoring has indicated that a DIMM in one of the file server
cluster nodes is in a pre-failure mode and likely to fail soon. So as to
avoid an unplanned failure that may threaten the stability of the node, we
are scheduling this outage to replace the failing DIMM preemptively.

We do not anticipate any outages, but you may find that some connections
(especially CIFS/SMB) may need to be reestablished.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.

Sincerely,
CS Staff
_______________________________________________
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[downtime] CS Storage Downtime, Monday, August 9, 2021, 05:00-12:00

Monday, July 26, 2021 at 11:23am EDT by csstaff

[downtime] CS Email Partial Outage, Wednesday, June 23, 2021,

Tuesday, June 15, 2021 at 9:47am EDT by csstaff

Date: Wednesday, June 23, 2021 (08:00-08:15)

Who is affected:
Users of CS Department Email Services

What is happening:
One of the two Zimbra mailbox servers will be rebooted. This will cause a
brief email outage for about half of CS Department email users. After the
reboot, some folks may need to re-authenticate to the email server. There
should be no loss of email; any incoming messages during the outage will
simply be queued for delivery once the server is up.

Why is it happening:
The out-of-band management device for this server has hit a fault and
become unavailable. As a result, our ability to troubleshoot the machine in
an emergency is presently restricted. This device also provides
environmental monitoring to the OS level (including temperature and power
supply status), so those functions are also not presently working. The
reboot will include a power cycle intended to restore the full function of
the hardware.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.
Sincerely,
CS Staff
_______________________________________________
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downtime@lists.cs.princeton.edu
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[downtime] RESCHEDULE: CS Ionic / Cycles System Downtime;

Tuesday, March 2, 2021 at 12:20pm EST by csstaff

[downtime] CS Ionic / Cycles System Downtime;

Monday, March 1, 2021 at 4:52pm EST by csstaff

Zimbra Webmail Outage

Tuesday, November 10, 2020 at 10:53am EST by jrc

UPDATE: As of 11:55 AM Zimbra is back up and running.

We are currently experiencing issues with Zimbra Webmail. Zimbra is reporting a network error when accessing Webmail. We are working to address the issue and will post updates here.

[downtime] CS Storage Downtime, Tuesday, November 3, 2020

Tuesday, October 20, 2020 at 7:57am EDT by csstaff

[downtime] CS System Downtime, Tuesday, July 7, 2020, 06:00-12:00

Monday, June 22, 2020 at 10:09pm EDT by csstaff

[downtime] CS System Downtime – Database Server, Tuesday, January 21, 2020

Monday, January 13, 2020 at 3:09pm EST by csstaff

Date: Tuesday, January 21, 2020 (07:00-09:00)

Who is affected:
Users of the CS Department mysql database service.

What is happening:
The Computer Science Department user and project database server needs to
undergo hardware maintenance for reported memory errors.

Why is it happening:
To continuously provide stable database resources for the department, the
CS user database server must be taken offline outside normal business hours
to perform the necessary corrective actions.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.

Sincerely,
CS Staff
_______________________________________________
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downtime@lists.cs.princeton.edu
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[downtime] CS System Downtime, Tuesday, September 3, 2019,

Tuesday, August 20, 2019 at 1:27pm EDT by csstaff

Date: Tuesday, September 3, 2019 (06:00-10:00)

Who is affected:
All users of the CS Staff-managed public login systems, including the
cycles, courselab and armlab systems.

All users of the CS Department Beowulf high performance computing cluster,
known as ionic.

What is happening:
During this window, the cycles systems will be replaced with newer
hardware, and the courselab systems will be reinstalled and updated with
the latest distribution version of Springdale Linux 7.6. Armlab systems
will be rebooted.

SPECIAL NOTE: As we are reloading the Linux servers, all crontabs will be
deleted. If you have crontabs that you wish to persist, you will need to
back up your crontabs before the downtime, and restore them after.

Why is it happening:
This is part of regular maintenance to keep systems up-to-date.

We will post updates to the status page: http://www.csstaff.org
as necessary.

If this downtime will cause you undue hardship, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.

Sincerely,
CS Staff
_______________________________________________
downtime mailing list
downtime@lists.cs.princeton.edu
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