- Synology: what each disk and volume reads and writes, bytes and requests a second and the load DSM gives it (SYNOLOGY-STORAGEIO- and -SPACEIO-MIB, 64-bit byte counters), and each disk's reconnects and sectors not found. - Linux server: CPU waiting on disk, the wait tick counter's share of the CPU's, and memory available (free + buffers + cache). A reading may now be worked out from others: the poll asks for its inputs, rates each counter, and stores only the result. - Interface traffic: errors and discards in and out, per second. - byte_count unit: a byte counter shown as bytes a second. Asustor's MIB has nothing more for this; its Linux server readings gain the same CPU wait and available memory. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>