[Veritas-vx] informix io
tdeming at ACUS.com
Tue Oct 23 16:03:05 CDT 2001
Raid 1+0 is more fault tolerant
From: dieter kruppa [mailto:d.kruppa at neways.nl]
Sent: Saturday, October 20, 2001 4:48 AM
To: Caparrosso, Nelson T. (AAS)
Cc: veritas-vx at mailman.eng.auburn.edu
Subject: RE: [Veritas-vx] informix io
thanks fot the advise.
I couldn't get any info on the db edition for informix, the only product
found was the foudation suite (is this what you mean ? ).
we have vxvm 3.2 on the shelf, what are the benefits over vxvm 2.5 ?
> -----Oorspronkelijk bericht-----
> Van: Caparrosso, Nelson T. (AAS)
[mailto:Nelson.T.Caparrosso at sbcdo.com]
> Verzonden: vrijdag 19 oktober 2001 20:16
> Aan: 'dieter kruppa'
> Onderwerp: RE: [Veritas-vx] informix io
> Use RAID0+1....Striping would always get you very good throughtput as
> channel (specially FC or UW-SCSI) could not be saturated by just a
> mirror-pair... With 3 A5x00 array you could even employ dedicated
> log device
> for the striped mirrors.. Get DB Edition for Informix if your
> budget allows
> and lastly, get off from VxVM 2.5.... You'll be better off with VxVM
> or 3.2
> -----Original Message-----
> From: dieter kruppa [mailto:d.kruppa at neways.nl]
> Sent: Friday, October 19, 2001 10:51 AM
> To: veritas-vx at mailman.eng.auburn.edu
> Subject: [Veritas-vx] informix io
> we are using vxvm 2.5 on a sun enterpise 4500 with 3 sa 5x00, we have
> of memory and 8 cpu's.
> our database is a informix 7.31 uc3 engine and we use baan as our erp
> we optimized our os and the layout of our database (spread of chunks
> disks and use only raid 1 (informix advise)), we bought extra hardware
> have enough memory and disk space. but the overall i/o performace
> really increase.
> we use raw devices with informix; I created a volume in the
> and then let ifx use this space.
> I have been looking into kernel parameters to tune the volume manager
> oltp systems, but find no good guidelines on the internet.
> so my question is:
> does anyone have some ideas over or experience with the above
> configuration or know where I can get some info.
> I been looking into parameters as vol_maxio, vol_maxioctl.
> dieter kruppa
> system/database administrator
> Neways Electronics International NV
> Science Park Eindhoven 5010
> 5692 EA Son
> The Netherlands
> tel: +31(0)402679204
> email : d.kruppa at neways.nl
> Veritas-vx maillist - Veritas-vx at mailman.eng.auburn.edu
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