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Operating Systems HP-UX About Block Size and Fragment Size Post 302929743 by Scrutinizer on Thursday 25th of December 2014 05:29:56 PM
Old 12-25-2014
That is the volume manager, but you probably mean VXFS? A fragment size equal to the block size makes sense for (cooked) database applications (especially if it is equal to the database block size) or for other applications where you mainly have large files. With lots of small files you are wasting space and a smaller fragment size would be more likely be the way to go.

Your root VG does not have a block size. Perhaps you mean that every VXFS filesystem in every LV in your root VG has a 8KB fragment size? That would not seem like a logical choice to me..

Last edited by Scrutinizer; 12-25-2014 at 06:51 PM..
 

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AUTALLOCBLOCK(3)						   AUT FUNCTIONS						  AUTALLOCBLOCK(3)

NAME
autallocblock - memory allocator ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr SYNOPSYS
#include "aut101.h" char *autallocblock( Size ) unsigned int Size; PARAMETERS
Size Number of memory bytes to be contiguously allocated DESCRIPTION autallocblock returns a block of Size bytes length. The memory block is set to zero. RETURN VALUE
autallocblock returns a pointer to a Size bytes long block. ERRORS
"autalloc: alloc error, can't continue !" System break can't be moved anymore, no more memory can be retrieved from the system. EXAMPLE
#include "aut101.h" char *dup_str(s) char * s; { char *t = (char *)autalocblock(strlen(s) + (unsigned int)1); strcpy(t, s); return t; } SEE ALSO
aut(1), autresizeblock(3), autallocheap(3), autfreeblock(3), autfreeheap(3). BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. ASIM
/LIP6 October 1, 1997 AUTALLOCBLOCK(3)
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