System disks Disk 0 and Disk 1, are cabled to a controller not associated with the disk arrays.
Disk 0 is the boot disk. The slices on Disk 0 contain file systems under the control of the operating system root directory.
Disk 1 provides additional space for dumps and memory swapping.
Boot Disk Contents
The following table lists the contents of the boot Disk 0.
| Content | Use |
|---|---|
| AMP identifiers file | Stores identifiers of all AMPs. |
| Configuration maps | Defines vprocs. The configuration map lists the pdisks allocated to a clique, but does not assign them to vdisks or AMPs. |
| Open PDE and operating system | Stores software under which Teradata Database is running. |
| Executable Teradata software | Includes any optional Teradata client software packages. |
| UDF libraries | Support user-defined functions and external stored procedures. |
| Copy of Teradata GDOs | Includes DBS Control Record (DBSCONTROLGDO). |
| Values | Initialize hash buckets. |
| space |
|