FAS Research Computing - Legg merke til historikk

Alle systemer er operative

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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Operasjonell

SLURM Scheduler - Cannon - Operasjonell

Cannon Compute Cluster (Holyoke) - Operasjonell

Boston Compute Nodes - Operasjonell

GPU nodes (Holyoke) - Operasjonell

seas_compute - Operasjonell

Operasjonell

SLURM Scheduler - FASSE - Operasjonell

FASSE Compute Cluster (Holyoke) - Operasjonell

Operasjonell

Kempner Cluster CPU - Operasjonell

Kempner Cluster GPU - Operasjonell

Operasjonell

FASSE login nodes - Operasjonell

Operasjonell

Cannon Open OnDemand - Operasjonell

FASSE Open OnDemand - Operasjonell

Operasjonell

Netscratch (Global Scratch) - Operasjonell

Home Directory Storage - Boston - Operasjonell

Tape - (Tier 3) - Operasjonell

Holylabs - Operasjonell

Isilon Storage Holyoke (Tier 1) - Operasjonell

Holystore01 (Tier 0) - Operasjonell

HolyLFS04 (Tier 0) - Operasjonell

HolyLFS05 (Tier 0) - Operasjonell

HolyLFS06 (Tier 0) - Operasjonell

Holyoke Tier 2 NFS (new) - Operasjonell

Holyoke Specialty Storage - Operasjonell

holECS - Operasjonell

Isilon Storage Boston (Tier 1) - Operasjonell

BosLFS02 (Tier 0) - Operasjonell

Boston Tier 2 NFS (new) - Operasjonell

CEPH Storage Boston (Tier 2) - Operasjonell

Boston Specialty Storage - Operasjonell

bosECS - Operasjonell

Samba Cluster - Operasjonell

Globus Data Transfer - Operasjonell

Legg merke til historikk

juli 2022

NESE tape (Tier 3) hardware maintenance/install
  • Fullført
    juli 21, 2022 kl. 22:00
    Fullført
    juli 21, 2022 kl. 22:00

    Maintenance has completed successfully

  • Pågår
    juli 21, 2022 kl. 10:00
    Pågår
    juli 21, 2022 kl. 10:00

    Maintenance is now in progress

  • Ikke startet ennå
    juli 21, 2022 kl. 10:00
    Ikke startet ennå
    juli 21, 2022 kl. 10:00

    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
  • Løst
    Løst

    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.

  • Oppdater
    Oppdater

    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)

  • Identifisert
    Identifisert

    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.

juni 2022

mai 2022

Slurm security patch causing node unavailability
  • Løst
    Løst

    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.

  • Overvåker
    Overvåker

    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/.

  • Identifisert
    Identifisert

    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.

  • Undersøker
    Undersøker

    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.

mai 2022 til juli 2022

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