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On 27 Nov 2008, at 02:08, Volker Armin Hemmann wrote: |
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> On Donnerstag 27 November 2008, Grant wrote: |
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>> I'm considering buying a solid-state drive to improve I/O performance |
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>> and even reduce noise. Has anyone tried this? I was considering |
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>> getting the lowest capacity I can find and putting most of the system |
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>> on it. There is a roundup on tomshardware.com and it sounds like |
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>> some |
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>> are very much better than others. SLC sounds vastly superior |
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>> compared |
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>> to MLC, but also much more expensive. |
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>> |
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> |
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> http://valhenson.livejournal.com/25228.html |
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> |
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> I would rethink that after reading that post. |
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|
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From TFA: |
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|
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Postscript: Yes, this analysis is based on anecdotal evidence and |
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personal experience, but I can't afford the time to do real research |
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unless someone pays me to. If you know someone who will, send me |
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email! |
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|
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I've read a number of other reports, also based on anecdotal evidence |
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and personal experience, from a number of people who have very happily |
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been using flash as root volumes for years. Their opinions disagree |
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with TFA. |
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|
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Typically the reports I've read have been from people using CFcards - |
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4gig is now unbelievably cheap, and CFcards talk EIDE with only a |
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small, cheap physical adaptor - on MythTV frontends & low-overhead |
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servers. CFcards look ideal for these purposes because they're quiet - |
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you want to minimise noise when playing back video in the living room, |
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for instance. |
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|
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I think the last anecdote I read on this subject was written by Trubox |
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(Truebox?) on the Openmoko-community list a month or two ago. They |
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sell Aserisk systems to small business (in my area, as it happens) and |
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I would imagine that typically the system sits in the corner of an |
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office and is untouched for years at a time. I would imagine that have |
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plenty of installed systems throughout the UK (otherwise they'd be |
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going hungry). They report a very low failure rate, as did someone |
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else on the MythTV-users list who also bases a commercial offering on |
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flash-based hardware. |
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|
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Whilst I would probably, myself, install a second flash drive myself & |
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back-up (to a stage 4?) periodically, and avoid disk-writes when |
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logging, I get the strong impression that there's little to be scared |
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of using flash memory. |
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|
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Everything I read that says flash - and particularly its wear- |
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levelling - is unsuitable for this purpose makes sense to me, but it |
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doesn't jibe with the real-world experiences of those who ARE using |
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flash VERY happily. |
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|
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I've yet to see empirical evidence on the longevity of flash for this |
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purpose, but I'd advise anyone considering it - anyone thinking flash |
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unsuitable - to search the mailing lists I've mentioned. The Trubox |
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post should be easy to find, and the subject comes up on MythTV-users |
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every few months. |
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|
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Stroller. |