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2 Commits (a7c023f4df78098e489b8b053649612d6436959e)

Author SHA1 Message Date
Theodore Ts'o c42de75b2f mke2fs: add support to align hugefiles relative to beginning of the disk 
Add the mke2fs.conf configuration option which causes the hugefiles to
be aligned to the beginning of the disk.  This is important if the the
reason for aligning the hugefiles is to support hard-drive specific
features such as Shingled Magnetic Recording (SMR).

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
 2014-07-09 10:42:13 -04:00
Theodore Ts'o 23a1b98722 mke2fs: add make_hugefile feature 
This feature is enabled via settings in /etc/mke2fs.conf.  For
example:

	hugefile = {
		features = extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize,^resize_inode,sparse_super2
		inode_size = 128
		num_backup_sb = 0
		packed_meta_blocks = 1
		make_hugefiles = 1
		inode_ratio = 4194304
		hugefiles_dir = /database
		hugefiles_uid = 120
		hugefiles_gid = 50
		hugefiles_name = storage
		hugefiles_digits = 4
		hugefiles_size = 1G
		num_hugefiles = 0
	}

Then "mke2fs -T hugefile /dev/sdXX" will create as many 1G files
needed to fill the file system.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2014-01-30 18:24:57 -05:00