Experiencing partially degraded performance

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

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


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
https://docs.rc.fas.harvard.edu | https://portal.rc.fas.harvard.edu | Email: rchelp@rc.fas.harvard.edu


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Cannon Cluster

Degraded performance

SLURM Scheduler - Cannon

Operational

Cannon Compute Cluster (Holyoke)

Degraded performance

Boston Compute Nodes

Operational

GPU nodes (Holyoke)

Degraded performance

SEAS compute partition

Degraded performance

FASSE Cluster

Degraded performance

SLURM Scheduler - FASSE

Operational

FASSE Compute Cluster (Holyoke)

Degraded performance

Kempner Cluster

Degraded performance

Kempner Cluster CPU

Degraded performance

Kempner Cluster GPU

Degraded performance

Login Nodes

Operational

Login Nodes - Boston

Operational

Login Nodes - Holyoke

Operational

FASSE login nodes

Operational

VDI/OpenOnDemand

Operational

Cannon VDI (Open OnDemand)

Operational

FASSE VDI (Open OnDemand)

Operational

Storage

Operational

Holyscratch01 (Global Scratch)

Operational

Home Directory Storage - Boston

Operational

HolyLFS03 (Tier 0)

Operational

HolyLFS04 (Tier 0)

Operational

HolyLFS05 (Tier 0)

Operational

Holystore01 (Tier 0)

Operational

Holylabs

Operational

BosLFS02 (Tier 0)

Operational

Isilon Storage Boston (Tier 1)

Operational

Isilon Storage Holyoke (Tier 1)

Operational

CEPH Storage Boston (Tier 2)

Operational

Tape - (Tier 3)

Operational

Boston Specialty Storage

Operational

Holyoke Specialty Storage

Operational

Samba Cluster

Operational

Globus Data Transfer

Operational

bosECS

Operational

holECS

Operational

Notice history

Aug 2022

NESE tape (Tier 3) upgrades
  • Completed
    August 26, 2022 at 8:43 PM
    Completed
    August 26, 2022 at 8:43 PM

    Maintenance has completed successfully.

  • In progress
    August 22, 2022 at 10:00 AM
    In progress
    August 22, 2022 at 10:00 AM

    Maintenance is now in progress

  • Planned
    August 22, 2022 at 10:00 AM
    Planned
    August 22, 2022 at 10:00 AM

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

    We have been informed that they will be performing a significant upgrade of their Spectrum Scale archive system starting August 15th. This is a multi-day upgrade and will take approximately 3 days (potential for longer). Tier 3 tape allocations will be unavailable during this upgrade.

    NESE has informed us that this maintenance will be deferred to next week (9/22/22).

Jul 2022

NESE tape (Tier 3) hardware maintenance/install
  • Completed
    July 21, 2022 at 10:00 PM
    Completed
    July 21, 2022 at 10:00 PM

    Maintenance has completed successfully

  • In progress
    July 21, 2022 at 10:00 AM
    In progress
    July 21, 2022 at 10:00 AM

    Maintenance is now in progress

  • Planned
    July 21, 2022 at 10:00 AM
    Planned
    July 21, 2022 at 10:00 AM

    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
  • Resolved
    Resolved

    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.

  • Identified
    Update

    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)

  • Identified
    Identified

    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.

Jun 2022

Jun 2022 to Aug 2022