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On Tue, 2010-04-20 at 15:57 +1200, Tortise wrote:
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----- Original Message -----
From: Daniel Giddens
To: MythTV in NZ
Sent: Tuesday, April 20, 2010 3:26 PM
Subject: Re: [mythtvnz] SSD versus rotational HD pricing
> Actually anyone commenting on here have you had the pleasure?? .....
It may well be that <A HREF="http://www.gossamer-threads.com/lists/mythtv/mythtvnz/">http://www.gossamer-threads.com/lists/mythtv/mythtvnz/</A> has not yet come to your attention. That will confirm
for you there are previous observations and comparisions from me, my CF promotion is therefore compared to actual SSD use, all be it
seems I used the bottom of the SSD heap.
Your comments did make me wonder what performance level of CF cards you had used? I was quoting my experience with 133x level CF
cards. 133x equates to a relatively slow 25MB/sec. read, 20MB/sec. write - all be it with
essentially zero delay for file reads. It is slower than fast SSD, but its still acceptable, given the performance is IMO adequate
the economic question may be considered along the lines of prudency before low budget.
>has very limited write life
How long did yours last (presumably with most writes turned off?)
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They still are going in one un-upgraded rig, no writes, ro operating system with ram drive for logs etc. I never had any failures but you had to manage them carefully ... I used 4GB CF cards from memory in an IDE cradle. The native install was just over 2GB. Every upgrade would fill the spare space and I had to check for space before doing a major update. Back when we did these only certain CF worked, also motherboards were fussy on recognising them as IDE drives correctly. Boot times were very slow on these. This was all done I think around 3-4 years ago ... I cant recall exactly ... my comments were based on today if you were choosing SSD or CF then other than budget there is no comparison. Interesting as we just upgraded the work setup and I installed 2 SSD systems and upgraded the CF frontend all at the same time. It was a first hand comparison of the differences, the CF upgrade was still going after I finished both SSD fresh installs.<BR>
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>and you always need to watch what you put on due to the small sizes.
Not sure how this applies to a FE? (To be clear I was not advocating for CF on BE's.)
Also Daniel, I for one wish to welcome your enthusistic participation here. While I do not necessarily agree with all you say, your
experiences are extremely valid and robust debate is great to get to the nub of an issue. Keep it up!
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Hey thanks ... .... hope I am not offending anyone .... nice to share some of my experiences and happy if someone finds it helpful ..... I'm not big on theory and written facts (lazy on researching my claims so if im off by a year, or a MB calc of other fact then please forgive : ) but I am trying to offer my actual experiences ... I was hacking Tivos before Myth( started that 10 years ago) and have been using Linux as my work PC for 11 years (whole company does here including over 100 servers we support..... I actually think that all these emails in this chain are agreeing with each other :) ... just email is a hard medium to get points across accurately sometimes as a point I was making about a front end (although maybe not clearly stating so) can be easily argued as not valid for a backend etc etc<BR>
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maybe I should have registered as Hare ..... that way when I argue SSD and Tortise argues CF we can all have a chuckle :) jks
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