2TB
ASM imposes the following limits:
· 63 disk groups in a storage system
· 10,000 ASM disks in a storage system
· Two-terabyte maximum storage for each ASM disk (non-Exadata)
· Four-petabyte maximum storage for each ASM disk (Exadata)
· 40-exabyte maximum storage for each storage system
· 1 million files for each disk group
· ASM file size limits (database limit is 128 TB):
1. External redundancy maximum file size is 140 PB.
2. Normal redundancy maximum file size is 42 PB.
3. High redundancy maximum file size is 15 PB.