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IDS Forum

direct i/o for cooked files in innovator-c edition

Posted By: JöRG SEIDER
Date: Wednesday, 16 June 2010, at 7:49 a.m.

I have recently installed a fresh instance of
IDS 11.50FC7IE Innovator-Community Edition on Centos 5.5.

The variable DIRECT_IO has value 1 in onconfig.xxx

Output from onstat -d is
------------------------------------------------------------------------------
IBM Informix Dynamic Server Version 11.50.FC7IE -- On-Line -- Up 05:45:45 -- 2080288 Kbytes

Dbspaces
address number flags fchunk nchunks pgsize flags owner name
a39d8028 1 0x70001 1 1 2048 N B informix rootdbs
a50840c8 2 0x70001 2 1 2048 N B informix physdbs
a5084a80 3 0x60001 3 1 2048 N B informix logdbs
a5286490 4 0x42001 4 1 2048 N TB informix tempdbs
a5493e00 5 0x60001 5 1 2048 N B informix userdbs
a516ddd0 6 0x60011 6 1 2048 N BB informix blobdbs
6 active, 2047 maximum

Note: For BLOB chunks, the number of free pages shown is out of date.

Run 'onstat -d update' for current stats.

Chunks
address chunk/dbs offset size free bpages flags pathname
a39d81c0 1 1 0 100000 93769 PO-BD ./rootdbs.chk1
a5084260 2 2 0 102400 0 PO-BD ./physdbs.chk1
a5084c18 3 3 0 1048576 536688 PO-BD ./logdbs.chk1
a5286628 4 4 0 2097152 2097124 PO-B- ./tempdbs.chk1
a516d520 5 5 0 26214400 26214372 PO-BD ./userdbs.chk1
a5157d60 6 6 0 5242880 ~5242880 5242880 POBBD ./blobdbs.chk1
6 active, 32766 maximum

NOTE: The values in the "size" and "free" columns for DBspace chunks are

displayed in terms of "pgsize" of the DBspace to which they belong.

Expanded chunk capacity mode: always
------------------------------------------------------------------------------

The chunks for the cooked files show a 'D' for direct i/o enabled.
Is this feature really enabled for the innovator community edition?

ciao
Jörg

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