PRIMECLUSTER Global File Services Configuration and Administration Guide 4.2 (Solaris(TM) Operating Environment)

13.1.3 Meta-data area

The meta-data area is an area for storing meta-data, which exists only in a representative partition.

13.1.3.1 Area management data

The area management data includes the allocation information of i-node, V-data and file data.

File data allocation information is managed in extent-base while combining a part to include extent information with a list managed with a degree of continuity.

sfcnewfs(1M) based on options specified creates the area for i-node, V-data and area management data. However, these areas can be dynamically increased when meta-data partitions are added during file system extension.

13.1.3.2 i-node area

The i-node area is a data structure containing file data. Each i-node stores pointers to the extent attribute, which includes a file type, a file length, file owner and group IDs, access permissions, and file data. There is one i-node for each file.

13.1.3.3 V-data area

The V-data area is defined to include a directory block, a symbolic link path name, and an indirect block area. The V-data area is managed in units of 1,024 bytes for efficient use of directory blocks.