Maximum volume size	64 billion terabytes (276)
Block size	4096 (212)
Fragment size	NA
Disk space overhead	less than 3%
Minimum free space	32KB
Maximum file size	16 million terabytes (264)
Sparse files	Yes
Journaling	Yes (both metadata and user data)
NFS/SPEC stable storage	Yes
Restart time - clean shutdown	4 seconds typical
Restart time - power failure	4 seconds typical
Maximum expansion segments	120
Maximum segment size	64 thousand terabytes (256)
Streaming I/O segment	optional
Separate journal device	optional
User ID (UID)	232
Group ID (GID)	232
Allotment ID (GID)	232
User quotas	Yes
Group quotas	Yes
Allotment quotas	Yes (advanced tree quotas)
Hard links	Yes
Symbolic links	Yes
Device nodes	Yes
Pipes/sockets	Yes
Maximum file name size	255 characters
Maximum entries per directory	1,000,000
Maximum subdirs per directory	1,000,000
Maximum link count	232
Maximum symbolic link size	4096
Maximum number of snapshots	240
Snapshot loading	none
Snapshot creation time	50ms typical
Snapshot delete time	variable