*nix File System Choices? Post: 302208516

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Top Forums UNIX for Advanced & Expert Users *nix File System Choices? Post 302208516 by zaxxon on Tuesday 24th of June 2008 05:23:34 AM

06-24-2008

Registered User

I think the question is more which Unix derivative you are going to use since this will tell you which type of filesystem will be available.

If you talk about distros and mean Linux, you usually go for ext3 or ReiserFS afaik.
On AIX we use JFS2 which is the standard there and use it for very large FS'es too.
On jfs2 you have (taken from the IBM Information Center about JFS2):

Code:

Maximum size for a JFS2-filesystem: 	32 TB
Maximum file size in JFS2: 	16 TB
Minimum size for a JFS2-filesystem: 	16 MB

But the difference for an x86 box that can carry Linux or a Power5/6 box that can carry AIX is about some 5 digits difference in price, when not even more.

zaxxon

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LEARN ABOUT NETBSD

resize_lfs

RESIZE_LFS(8)						    BSD System Manager's Manual 					     RESIZE_LFS(8)

NAME

     resize_lfs -- resize a mounted log-structured filesystem

SYNOPSIS

     resize_lfs [-v] [-s new-size] mounted-file-system

DESCRIPTION

     resize_lfs grows or shrinks a mounted log-structured filesystem to the specified size.  mounted-file-system is the name of the filesystem to
     be resized, and new-size is the desired new filesystem size, in sectors.  If new-size is not specified, resize_lfs will default to the cur-
     rent size of the partition containing the filesystem in question.

     When growing, the partition must be large enough to contain a filesystem of the specified size; when shrinking, resize_lfs must first
     ``clean'' the segments that will be invalid when the filesystem is shrunk.  If this cleaning process results in these segments becoming
     redirtied, this indicates that the given new size is not large enough to contain the existing filesystem data, and resize_lfs will return an
     error.

EXAMPLES

     To resize the file system mounted at /home to 32576 sectors:
	   resize_lfs -s 32576 /home

SEE ALSO

     fsck_lfs(8), lfs_cleanerd(8), newfs_lfs(8)

HISTORY

     The resize_lfs command first appeared in NetBSD 3.0.

AUTHORS

     Konrad Schroder <perseant@NetBSD.org>

BUGS

     resize_lfs should be able to resize an unmounted filesystem as well.

BSD
								 September 4, 2006							       BSD