Author: Einar Jensen

Saga maintenance finished

The Saga maintenance is finished and you are welcome to start computing again. We have added considerable amount of storage. In the following weeks we will reorganize the placement of some data to utilize the new disks. We were not able to add all of the expansion due to some hardware errors, but this will be added later.

[login-1.SAGA ~]# df -h /cluster
Filesystem Size Used Avail Use% Mounted on
beegfs_nodev 5,3P 743T 4,5P 14% /cluster

Saga Maintenenace Downtime 18th-19th February 2021

Dear Saga user. We need to schedule a small downtime of Saga from Thursday 18th February 2021 starting at 08:00, until Friday 19th February 2021, ending at 16:00. If maintenance is finished earlier, we will also open up the machine earlier.

During the maintenance, we will continue the work we started in early december and connect the new storage expansion to the system, and make it available for general use. This will give us several Petabyte extra for project storage and other usage..

We apologize for the inconvenience

[Updated] Fram Downtime on Wednesday 20th January 2021 from 12:00-15:00

Update: The file system servers have now been fixed, and we are back online again. Thank you for your patience.

We have an ongoing performance issue with Fram filesystem. We need to shut down file servers to get this fixed, and therefore need to have three hours downtime:

Wednesday 20th January between 12:00 and 15:00, Fram will be unavailable

[RESOLVED] Saga downtime. 7th December-11th December. Adding 4PB storage.

As previously announced, Saga will be down in the coming week, from 7th December 08:00 until 11th December 16:00.

The downtime is allocated for expanding the storage. When we come back we will have ca 4 Petabyte in addition to the already existing 1 PetaByte.

Update: Saga is back online and running jobs again. The new storage is not online yet, but all the hardware has been mounted.

Vilje final shutdown and end of life.

As Betzy now has started production, the time has come to stop production on Vilje. On 1st of December no more jobs will be accepted into the queueing system and running jobs will be terminated. During the next few days after 1st December, the /work file system will be shut down and disconnected. ALL DATA on /work will be lost if you do not take proper measures and make sure you copy data out of Vilje before 1st of December.

We will try to have the /home filesystem still operational after 1st of december, but there is no guarantee this will be possible. There is also still a small possibility that Vilje could be available for running jobs after 1st of December, although highly unlikely.

On behalf of all previous and present NTNU staff:

Thanks for all the computing

Fram and NIRD-TOS recabling is finished. Downtime is over

We have finished the recablingof both Fram and NIRD-TOS storage systems. All cabling is now balanced and all cables are same vendor (instead of a mix between four different vendors). Huge thanks to all who participated in the downtime and a huge thank to all of you waiting patiently to start running jobs and transfer data again.

Cabling before replacement and cleanup:

And after replacement and cleeanup: