What is Asset tagging?
An asset tag links a physical device to a record. The tag carries a unique ID, often as a printed barcode or QR code, and sometimes an RFID chip. The record in the asset register or CMDB holds details such as serial number, model, location, owner, install date and status. Scanning the tag in the field pulls up the record, or updates it.
The tag differs from the serial number. A serial number is set by the manufacturer and may repeat across vendors. An asset tag is set by the owner, so it stays consistent across all brands and survives moves. Many registers hold both. Tagging also differs from cable labeling, which identifies cables and ports, but both are part of good documentation.
Practices differ between organizations in tag format, placement and system. What matters is that every device gets one tag, the tag is readable and the register is kept up to date. Without updates a register soon becomes wrong and loses its value in audits, in decommissioning and in finding equipment during a fault.
How it shows up in practice
- Agree the tag format and placement, for example the front of the device where it can be scanned without removing anything.
- Capture serial number, model, rack location and U position along with the tag ID at the time of install.
- During moves and decommissioning, scan each tag and update the status, so the register shows what is where.
- Run a spot check or audit at set intervals, comparing the physical equipment to the register.