## Purpose This document is meant to help keep track disks and their associated serial numbers for replacement and recordkeeping purposes. !!! note "Disk Order Structure" Disks are represented in 1 column, with the drive positions / topology mirroring the table seen below. | **Slot 01** | **Slot 02** | **Slot 03** | **Slot 04** | **Slot 05** | | :--- | :--- | :--- | :--- | :--- | | 4TB
`SN: Z305ZNZM` | 4TB
`SN: Z305SPL8` | 4TB
`SN: Z3051AF8` | 4TB
`SN: Z305ZNM1` | 4TB
`SN: Z305S03R` |