[mythtv-users] An SSD for Backend OS / Database Drives?

[Douglas Peale]

On 2012/03/14 02:29 PM, tortise wrote:
> My Server's OS/Database HDD is possibly showing signs of aging being an 
> older and noisier 7200 120G that's got a few bad sectors reallocated.
>
> Having found SSD on frontends give a significant user speed upgrade 
> (faster on/off and faster menu responses) I am now considering replacing 
> the backend OS drive with an SSD. (Also 3 x 2TB drives for recordings 
> seem happy there)
>
> Some of the new 6G series 3 SSD's such as the Adata S510's seem a 
> possible replacement, capable of 550/510MB read and write speeds.
>
> My motherboard (Gigabyte GA-EP31-DS3L)is a SATA 2 which I understand to 
> mean it can transfer 3Gb/s over the SATA interface.
>
> There seems little point in spending extra on SDD's that run faster than 
> the SATA II interface, unless there is no disadvantage...
>
> The b and B's might be confused somewhere, however it seems the full 
> 550/510MB read and writes may be available on the SATA II interface.
>
> If one uses a SSD on a backend (no frontend use) then the only 
> difference I expect I am going to see is faster mythweb page loads, 
> which might be nice for the recordings page.  The frontend recordings 
> lists might also populate quicker.  This basically assumes the database 
> reads are read from the disc and not from RAM, my understanding is its 
> done from the disc, if so there seems considerable scope for speeding up 
> the user experience that relies on the myriad of reads?
>
> Can anyone comment about this analysis, do you agree or see it 
> differently?  I presume some people have now done this, what has been 
> their experience?
>
>
>
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I have been using a SSD as a boot disk for a while now.

Pros: I no longer have corrupted recordings due to the disk taking too long to respond (database was swamping the HDD)

Cons: Ubuntu does not boot reliably with a SSD. About one in 5 boots hangs dumping me into busybox, and I must type exit to
continue the boot. This is a problem because I let my system shut down when idle.

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