Re: Veritas Quick I/0 and Oracle/ Asycnchronous I/O

Christopher Spence wrote:
>
> AWESOME looking website
>
> "Walking on water and developing software from a specification are easy if
> both are frozen."
>
> Christopher R. Spence
> Oracle DBA
> Fuelspot
>
> -----Original Message-----
> From: Paul Drake [mailto:paled_at_home.com]
> Sent: Sunday, June 10, 2001 4:34 PM
> To: ORACLE-L_at_fatcity.com
> Cc: cspence_at_FuelSpot.com
> Subject: Re: Veritas Quick I/0 and Oracle/ Asycnchronous I/O
>
> http://www.platypustechnology.com/default2.asp

Christopher,

I like the section that dicusses how it "makes Citrix suck less".

I was thinking about a pair of these for (oracle mirrored) online redo logs.
2 units of 1 GB each would have plentry of room - half for redo and half for swap.
If it works really well, get a 3rd unit for swap alone - but it would have to be on another bus channel.

this is where having multiple PCI bus channels (e.g. 4) really makes a big difference.
1 for internel storage (ultra 160/m SCSI) 1 for external storage (fibre channel or ultra 160/m SCSI) 1 for gigabit network cards (and backup fast ethernet card) 1 for PCI NVRAM for swap and online redo

64 bit slots allow for (max) 350 MB/sec transfers. wow. cdw has these (special order) -
http://www.cdw.com/shop/products/default.asp?EDC=209969 the one listed looked like it supported a 32 bit interface. $2500 each. ouch.
sounds like a good way of justifying an adequate number of hard drives for online redo.

Paul

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Author: Paul Drake
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