All MIBs › SYNOLOGY-STORAGEIO-MIB › storageIONWritten
storageIONWritten
Module: SYNOLOGY-STORAGEIO-MIB
OID (symbolic): SYNOLOGY-STORAGEIO-MIB::storageIONWritten
OID (numeric): 1.3.6.1.4.1.6574.101.1.1.4
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of bytes written to this device since boot.
What is storageIONWritten?
This counter tracks the total bytes written to this storage device since the NAS last booted. Admins monitor it alongside storageIONRead to understand the read/write balance and detect write-heavy workloads that could wear out consumer-grade drives faster. For example, a steep rise in this counter during a large file upload confirms writes are landing on that device as expected.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.6574.101.1.1.4 snmpwalk -v2c -c public <target> SYNOLOGY-STORAGEIO-MIB::storageIONWritten
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.6574.101.1.1.4.1 snmpget -v2c -c public <target> SYNOLOGY-STORAGEIO-MIB::storageIONWritten.1
Start monitoring Synology NAS, DiskStation/RackStation (per-device storage I/O performance/load) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SYNOLOGY-STORAGEIO-MIB::storageIONWritten OID value, configure state conditions and alerts, and monitor any Synology NAS, DiskStation/RackStation (per-device storage I/O performance/load) from a single console.
OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.6574 | synology | SYNOLOGY-DISK-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.6574.101 | storageIO | SYNOLOGY-STORAGEIO-MIB |
| 1.3.6.1.4.1.6574.101.1 | storageIOTable | SYNOLOGY-STORAGEIO-MIB |
| 1.3.6.1.4.1.6574.101.1.1 | storageIOEntry | SYNOLOGY-STORAGEIO-MIB |
| 1.3.6.1.4.1.6574.101.1.1.4 | storageIONWritten | SYNOLOGY-STORAGEIO-MIB |