A reference architecture model has more properties than a standard EAM.
The General tab contains all the standard model properties (see EAM Properties) in addition to the following properties:
These properties are available on the Configuration tab:
| Property | Description | 
|---|---|
| Main cache ratio for reader/ writer (%) | Specifies the percentage of the cache allocated to the main (as opposed to temporary) cache. | 
| Memory margin (%) | Specifies the percentage of memory reserved for the operating system, file system, and other applications. | 
| Application storage (GB) | Specifies the number of gigabytes of storage to be allocated for other applications. | 
| Backup storage ratio (%) | Specifies the percentage of storage allocated to backup data. This number can be greater than 100%. | 
| IQ temp store per user (GB) | Specifies the disk size (in GB) allocated for each concurrent user for the temp store. | 
| SAN disk type | Specifies the type of disk used in the SAN. | 
| SAN disk per core | Specifies the standard and maximum number of disk devices in the SAN system per CPU core. | 
| IQ_SYSTEM_MAIN (GB) | Specifies the standard and maximum sizes (in GB) allocated to the IQ_SYSTEM_MAIN dbspace. | 
| Memory per core (GB) | Specifies the standard and maximum memory (in GB) per core. | 
| Main cache per index for writer (IQ page) | Specifies the standard and maximum main cache (in IQ pages) per index for writers. |