Interesting - I’ve been using NVMe devices on Linux for a couple years now and never run into this problem. And an I/O timeout of 255 seconds seems really high to begin with. Is there frequently that much latency in the EBS storage backplane? (We also run c5.9xl instances and have not yet experienced the phenomenon you discuss.)
In any event, the instance storage is unlikely to run afoul of any such timeouts since it’s more or less directly attached (albeit virtualized) and there’s no SAN involved.
In any event, the instance storage is unlikely to run afoul of any such timeouts since it’s more or less directly attached (albeit virtualized) and there’s no SAN involved.