Subject: Re: [linux-audio-user] Understanding HDD capabilities.
From: Jörn Nettingsmeier (nettings_AT_folkwang-hochschule.de)
Date: Tue Dec 04 2001 - 10:11:08 EET
Patrick Shirkey wrote:
>
> Just trying to grok how much I can technically expect from an HDD.
>
> I have a fair idea but could someone comfirm my understanding or
> elaborate please.
>
> If I want to record a stream the bottleneck is the speed at which the
> hdd can transfer the data from the ide cable onto a disc right?
>
> For example if I want a 16 bit, 48000 khz, mono file, that is 768
> Kbit/sec.
>
> If my hdd specs tell me that the media transfer rate is
>
> Media Transfer Rate (Mbits/sec): 108.8-202.9
>
> How many of the above streams would I technically be able to capture?
>
> Would it be 0.1416 streams? ie not even 1 and a half streams?
?
108.8M / 768K = 145 mono streams max.
but i think this value is purely theoretical. the moment the drive
needs to move heads, you're lost.
iirc, paul d. claims he can do 32 tracks i/o, but that's on a mean
smp scsi-only system.
-- Jörn Nettingsmeier home://Kurfürstenstr.49.45138.Essen.Germany phone://+49.201.491621 http://spunk.dnsalias.org http://www.linuxdj.com/audio/lad/
This archive was generated by hypermail 2b28 : Tue Dec 04 2001 - 10:04:14 EET