The following table summarizes GDE segment qualifiers. It provides abbreviations, defaults (as provided by FIS), and allowable minimum and maximum values.
| GDE SEGMENT Qualifiers | |||
|---|---|---|---|
| QUALIFIER | DEFAULT | MIN | MAX | 
| **BLOCK_SIZE minus the size of the block header | |||
| *May vary by platform | |||
| -AC[CESS_METHOD]=BG|MM | BG | - | - | 
| -AL[LOCATION]=size (blocks) | 100 | 10 | 2**24 | 
| -BL[OCK_SIZE]=size (bytes) | 1024 | 512 | 65024 | 
| -[NO]EN[CRYPTION] | 0 | ||
| -EX[TENSION_COUNT]=size (blocks) | 100 | 0 | 65535 | 
| -F[ILE_NAME]=file-name (chars) | mumps.dat | - | 255 | 
| -G[LOBAL_BUFFER_COUNT]=size (buffers) | 1024* | 64 | 4096 | 
| -L[OCK_SPACE]=size (pages) | 40 | 10 | 65024 for BG; 1000 for MM | 
| -R[ESERVED_BYTES]=size (bytes) | 0 | 0 | block size-7 |