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Re: direct i/o for cooked files in innovator-c edi

Posted By: Frank Langelage
Date: Wednesday, 16 June 2010, at 8:50 a.m.

In Response To: direct i/o for cooked files in innovator-c edition (JöRG SEIDER)

DIRECT_IO is not supported, see for example
http://www.informix-zone.com/aggregator/sources/32.

For me it's unclear if this means is not licensed and that you are not
allowed to use it or if this feature is not available.

For PDQ I can say, that I got a message on engine start up:
23:18:28 Warning: PDQ functionality is not supported in IDS Innovator-C
Edition.

The value of PDQPRIORITY cannot be set to 50. It is reset to 0.

I would expect the same for DIRECT_IO.

On 16.06.10 13:49, JöRG SEIDER wrote:
> 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 Note: For BLOB chunks, the number of free pages shown is out of date.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
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>
>

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