FAS Research Computing - Cronologia degli avvisi

Tutti i sistemi sono operativi

Status page for the Harvard FAS Research Computing cluster and other resources.

Cluster Utilization (VPN and FASRC login required): Cannon | FASSE


Please scroll down to see details on any Incidents or maintenance notices.
Monthly maintenance occurs on the first Monday of the month (except holidays).

GETTING HELP
Documentation: https://docs.rc.fas.harvard.edu | Account Portal https://portal.rc.fas.harvard.edu
Email: rchelp@rc.fas.harvard.edu | Support Hours


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Operativo

SLURM Scheduler - Cannon - Operativo

Cannon Compute Cluster (Holyoke) - Operativo

Boston Compute Nodes - Operativo

GPU nodes (Holyoke) - Operativo

seas_compute - Operativo

Operativo

SLURM Scheduler - FASSE - Operativo

FASSE Compute Cluster (Holyoke) - Operativo

Operativo

Kempner Cluster CPU - Operativo

Kempner Cluster GPU - Operativo

Operativo

FASSE login nodes - Operativo

Operativo

Cannon Open OnDemand - Operativo

FASSE Open OnDemand - Operativo

Operativo

Netscratch (Global Scratch) - Operativo

Home Directory Storage - Boston - Operativo

Tape - (Tier 3) - Operativo

Holylabs - Operativo

Isilon Storage Holyoke (Tier 1) - Operativo

Holystore01 (Tier 0) - Operativo

HolyLFS04 (Tier 0) - Operativo

HolyLFS05 (Tier 0) - Operativo

HolyLFS06 (Tier 0) - Operativo

Holyoke Tier 2 NFS (new) - Operativo

Holyoke Specialty Storage - Operativo

holECS - Operativo

Isilon Storage Boston (Tier 1) - Operativo

BosLFS02 (Tier 0) - Operativo

Boston Tier 2 NFS (new) - Operativo

CEPH Storage Boston (Tier 2) - Operativo

Boston Specialty Storage - Operativo

bosECS - Operativo

Samba Cluster - Operativo

Globus Data Transfer - Operativo

Cronologia degli avvisi

lug 2022

NESE tape (Tier 3) hardware maintenance/install
  • Completato
    luglio 21, 2022 at 22:00UTC
    Completato
    luglio 21, 2022 at 22:00UTC

    Maintenance has completed successfully

  • In corso
    luglio 21, 2022 at 10:00UTC
    In corso
    luglio 21, 2022 at 10:00UTC

    Maintenance is now in progress

  • Pianificato
    luglio 21, 2022 at 10:00UTC
    Pianificato
    luglio 21, 2022 at 10:00UTC

    Our tier 3 tape system is part of and run by NESE (the NorthEast Storage Exchange).

    We have been informed that they will be installing additional tape drives to the system on July 21st and this will require a whole day downtime to accomplish. Tier 3 tape archives will not be available to our users on that date.

holylfs02 performance issues
  • Risolto
    UTC
    Risolto

    The unrepairable volume on holylfs02 is isolated to two labs and they have been informed of next steps. This issue does not affect other areas on holylfs02, so we are closing this incident.

  • Aggiornare
    UTC
    Aggiornare

    Recently we noticed an uptick in bad blocks on a RAID6 disk volume that is part of the entire filesystem. Generally speaking, the operating system will vector these out so no data is written there. During this period, we had to replace a number of drives due to failures; they are part of RAID 6 multi-disk set with dual parity and will rebuild with minimal impact on performance.

    What we believe happened is that, during the rebuild process, bad data was copied to the replacement disks and the filesystem got corrupted. One of the staff ran a read-only, non-destructive repair on the volume in question and noted quite a few errors.

    So far, we have 1) contacted the vendor (who gave us a command to clear additional bad blocks)
    2) NOT run the actual repair command to "fix" the filesystem (which would delete data) 3) contacted the vendor to see if they had any partners that might be able to assist. We are planning to meet with one of those partners early next week, but are not confident they will have a solution. At this point (and depending on how that meeting goes), the next step would be to run the repair, note the extent of loss, and attempt to get the volume remounted.

    Updates to follow when we have more information.

    Note that these shelves are covered under warranty support for another year. We see no need at present to replace the 3PB allocation with new hardware (this is planned to take place Q3-4 FY23)

  • Individuato
    UTC
    Individuato

    Users may experience issues connecting to holylfs02, or slow samba performance.

    This is due to a hardware issue with holylfs02, and we have opened a ticket with the vendor. Updates to follow.

    No ETA.

giu 2022

mag 2022

Slurm security patch causing node unavailability
  • Risolto
    UTC
    Risolto

    The scheduler and node states appear to be stable. Thank you for your patience and understanding.

    Please note that the intermittent deadlock issue is still not resolved, but we are actively monitoring that and intervening as necessary until we receive a solution.

  • Monitorando
    UTC
    Monitorando

    The patch has been deployed and the scheduler restarted. Paused jobs are resuming.

    Any jobs which did not start or were stuck may have been flushed. So please check any pending jobs you might have had.

    Related doc: https://docs.rc.fas.harvard.edu/kb/running-jobs/.

  • Individuato
    UTC
    Individuato

    We have tested the patch on our test cluster before releasing. We are now proceeding to deploy to the cluster. Thanks for your patience.

    UPDATE: jobs suspended, scheduler down for patching, nodes are updating.

  • Verifiche
    UTC
    Verifiche

    The Slurm emergency security patch introduced a bug which is causing many of our nodes to be set to 'not responding'. The vendor has already identified the issue and issued another patch.

    We are deploying this patch after testing. Jobs will be paused and the scheduler and cluster will be unavailable while deploying the patch. Watch here for updates.

mag 2022 to lug 2022

Prossimo