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[ts-7000] Re: TS-7553 MicroSD longevity

To:
Subject: [ts-7000] Re: TS-7553 MicroSD longevity
From: "parkranger_dan" <>
Date: Sun, 15 May 2011 19:17:46 -0000
Thanks Walter.  Wow, so I'm thinking should be good to go then.  I've already 
uninstalled rsyslog, which could contribute to excessive writes, and the lock 
file my project creates I have dropping onto a ramfs volume.  So hopefully any 
writes are now at a minimum.  In the main function of my script I'm also 
issuing a sync && sync, so hopefully that helps too. 

--- In  walter marvin <> wrote:
>
> btw Technologic's OS does have journaling
>
> --- On Sun, 5/15/11, walter marvin <> wrote:
>
> From: walter marvin <>
> Subject: Re: [ts-7000] TS-7553 MicroSD longevity
> To: 
> Date: Sunday, May 15, 2011, 2:48 PM
>
>
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>  
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>    
>      
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>       My info is infinite reads but limited writes this means that you must 
> use a journaling file system or build in track remapping
>
> --- On Sun, 5/15/11, parkranger_dan <> wrote:
>
> From: parkranger_dan <>
> Subject: [ts-7000] TS-7553 MicroSD longevity
> To: 
> Date: Sunday, May 15, 2011, 1:37 PM
>
>
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>  
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>    
>      
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>       Hey guys.  I posted awhile back when having some functionality issues 
> with a TS-7200 and realized the 7553 was really the platform I should have 
> been working with from the get-go. 
>
>
>
> Sweet little box this 7553.  I've gotten all my software ported over and it's 
> working perfect.  After only a couple weeks with it, I think I'm ready for 
> deployment. 
>
>
>
> We'll be preparing quite a few of these little guys.  Having the ability to 
> insert a pre-imaged MicroSD, set one jumper, and run one command (rm linuxrc; 
> ln -sf /linuxrc-sdroot /linuxrc; save) to change the boot is very attractive 
> in terms of quick deployment, and easy field upgrade (send customer a new 
> MicroSD card, done!).
>
>
>
> One question I had was in regard to the longevity of these little MicroSD 
> cards, and their resilience to repeated power loss.
>
>
>
> Customers will not have the ability to shutdown nicely, power will always be 
> removed to turn off.  I based my image from the latest.dd image available 
> from the Technologic website, which if I remember correctly is formatted 
> ext3. 
>
>
>
> Has anyone had any experience with a similar setup?  How are the boxes 
> holding up, and have the MicroSD cards been lasting? 
>
>
>
> I've been also pondering making use of the xnand drive with a custom busybox 
> that includes the compiled apps i need and just script the flashing process 
> to ease prep/deployment.  I know bootup time would be significantly better 
> than my current 1 minute timeframe, and resilience would be better.  Downside 
> would be that I lose the ability to do remote software updates.  Anyway, I 
> have yet to break ground on that idea, or even wrap my brain around how 
> that's done.
>
>
>
> Thanks!
>
> Dan
>




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