Beiträge von nielszonderhond

  • Severe Disk I/O Performance Issues on RS 2000 G12 iv Pro

    Same.

    Cant create any backups. Once the load of the server climb past the 4, the disk i/o simply stalls. The ony resolution is to reboot the server.
    I have submitted a ticket on friday, without any confirmation:

    Ticket:
    - The stall only occurs under sustained disk I/O load (e.g. our backup job). With backups disabled, the server has been stable since the last reset (09-10 22:27), and /sys/block/vda/inflight stays at 0 0.
    - The issue is reproducible: as soon as moderate sustained I/O starts, throughput drops to zero within minutes and write requests remain stuck in flight ("0 2" at 22:05 on 09-10).
    - This server ran the exact same workload, including the same nightly backup, for 6 months without any problems. Nothing has changed on our side.

    This strongly points to an issue with the host or storage backend.

    At the moment we cannot run backups on this server, so this is urgent.