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Full Discussion: fragments in Solaris 8
Top Forums UNIX for Advanced & Expert Users fragments in Solaris 8 Post 20334 by manderson19 on Wednesday 24th of April 2002 04:35:06 PM
Old 04-24-2002
fragments in Solaris 8

When discussing inodes and data blocks, I know Solaris creates these data blocks with a total size of 8192b, divided into eight 1024b "fragments." It stores data in "contiguous" fragments and solaris doesn't allow a file to use portions of two different fragments. If the file size permits, then the file is stored in the "n" number of fragments within a single data block.

My question is this: if I have a file that is larger than 8K, which means it will need more than one data block, does solaris store the data blocks in a coniguous fashion? i.e., datablock1, datablock2, datablock3, etc. my instincts tell me it has to, otherwise the file becomes "fragmented." any help is appreciated.
 

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space(4)							   File Formats 							  space(4)

NAME
space - disk space requirement file DESCRIPTION
space is an ASCII file that gives information about disk space requirements for the target environment. The space file defines space needed beyond what is used by objects defined in the prototype(4) file; for example, files which will be installed with the installf(1M) command. The space file should define the maximum amount of additional space that a package will require. The generic format of a line in this file is: pathname blocks inodes Definitions for the fields are as follows: pathname Specify a directory name which may or may not be the mount point for a filesystem. Names that do not begin with a slash ('/') indicate relocatable directories. blocks Define the number of disk blocks required for installation of the files and directory entries contained in the pathname (using a 512-byte block size). inodes Define the number of inodes required for installation of the files and directory entries contained in the pathname. EXAMPLES
Example 1 A sample file. # extra space required by config data which is # dynamically loaded onto the system data 500 1 SEE ALSO
installf(1M), prototype(4) Application Packaging Developer's Guide SunOS 5.11 7 Feb 1997 space(4)
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