Daily Bulletin Archive

October 16, 2019

The GLADE file system, the Cheyenne and Casper clusters, the HPSS tape library, the data access nodes, and the JupyterHub portal will be unavailable on Tuesday, October 29, to allow CISL staff to update key storage system software components. The downtime will begin at 7 a.m. MDT and is expected to last until approximately 7 p.m. HPSS is expected to be back in service by 11 a.m.

All active Globus transfers will be suspended during the outage and will resume when GLADE is returned to service. System reservations on Cheyenne and Casper will prevent most batch jobs from executing after 7 a.m. that day. All batch jobs and login sessions that are running at that time will be killed.

October 16, 2019

University project leads are being asked to submit their information about FY2019 publications based on the use of NCAR/CISL supercomputing, analysis, and storage resources. The annual survey was launched this week in emails to project leads, who are asked to respond no later than November 6.

The survey also asks for information on graduate students who have used these resources and it asks for feedback on various services CISL provides. This information contributes to the CISL Annual Report and helps demonstrate to the National Science Foundation (NSF) the impact and value of NCAR/CISL resources to our user community.

All users are reminded of the importance of acknowledging NCAR and CISL computing support in their research papers. This, too, helps ensure continued support from NSF and other sources of funding for future high-performance computing systems. It is also a requirement of receiving an allocation, as noted in award letters. The reporting requirements, how to cite your use of various systems, and recommended wording of acknowledgments can be found on this CISL web page. The content of citations and acknowledgments varies depending on the type of allocation that was awarded.

October 14, 2019

Given several factors, including that our tape archive vendor, Oracle, is getting out of the hardware market, NCAR’s HPSS tape archive will be shut off on October 1, 2021. Our archival strategy has been moving away from tape and thus, for user data, the NCAR Campaign Storage file system is the recommended location for longer-lived data. Our annual storage budget will be focused primarily on adding capacity to  Campaign Storage on a regular basis.

Move data now

CISL will not be migrating the 90 petabytes of data currently in the HPSS tape archive; it will be up to you, the user, to assess which data are worth saving and to move your files to the  Campaign Storage system and/or other institutional storage resources available to you. We also expect a substantial volume of data is no longer needed and can be deleted.

It’s important to note that tape archives have limited bandwidth. If you wait too long, you will run out of time to migrate your data and they will be lost when the system is shut down. To prevent this, complete the following action items as soon as possible: 

User action items

  1. Review the data you have on tape and decide what you need to keep beyond October 1, 2021.

  2. Delete data that you do not need to keep.

  3. Review your workflows and stop writing data to tape as soon as possible. HPSS will be put into read-only mode shortly.

  4. Copy data from tape that you need to keep as soon as possible and transfer it to your target storage system.

CISL is working on a number of resources, documentation, and tools to ease the transition. Information about these will be published as soon as it becomes available. Nevertheless,  you should take action immediately. None of these tools will help with the difficult decision about which data are scientifically worth keeping and will fit into the storage resources available to you.

Please contact CISL for advice on individual workflows, accessing data movers, and storage options. Additional information and documentation will be provided in the CISL Daily Bulletin as it becomes available.

October 14, 2019

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

October 9, 2019

The GLADE file system will be unavailable on Tuesday, October 29, to allow CISL staff to update key file system software components. The Cheyenne and Casper clusters, the data access nodes and JupyterHub will also be unavailable to users throughout the outage. All active Globus transfers will be suspended during the outage but will resume when GLADE is returned to service. The downtime will begin at 7:00 a.m. MDT and is expected to last until approximately 7 p.m.  System reservations will be created on Cheyenne and Casper to prevent most batch jobs from running past 7:00 am that day. All running batch jobs and login sessions on Cheyenne, Casper and the data access nodes will be killed at 7:00 am.

September 30, 2019

CISL is delaying the final rollout of its new user support environment, Jira Service Desk, until October 29. Based on feedback from early users, CISL will use the next month to simplify the experience for users, provide additional training for ticket resolvers, and improve email and other interactions with the system.


We appreciate your patience as we work to ensure we can continue to provide a high-quality customer experience with the new system. In the meantime, users can continue to email cislhelp@ucar.edu or call 303-497-2400 to request assistance.

When ready, the new ticket system will feature a friendly user interface, simple request forms, and knowledge base articles that answer common questions. It will replace the ExtraView ticketing system for all but a few internal purposes (including NETS requests that will still use netshelp@ucar.edu).

September 30, 2019

CISL will increase the file retention period for the GLADE scratch space from 90 days to 120 days effective Tuesday, October 1. Individual files will be removed from scratch automatically if they have not been accessed – read, copied or modified – for more than 120 days. To check a file's last access time, run the command ls -ul <filename>.

The updated retention policy is expected to improve overall file system utilization and ease user issues related to managing their data holdings.

September 30, 2019

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

September 30, 2019

No Scheduled downtime for Cheyenne, Casper, HPSS and GLADE

September 27, 2019

Users of NCAR’s High Performance Storage System (HPSS) are reminded that abandoned files will be deleted on Tuesday, October 1. HPSS files are considered abandoned when the project and/or file owner's user ID have been inactive for at least 12 months and CISL did not receive responses from either the files’ owners or the project leads after multiple subsequent notifications. CISL estimates that more than 7 PB of tape storage space will be reclaimed.  More than 460 users have received multiple notifications of the pending deletions. Extensions to the October 1 deadline will not be granted.

Information on the abandoned data holdings, by project and user, is available here.