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Volker Armin Hemmann <volker.armin.hemmann <at> tu-clausthal.de> writes: |
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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 some |
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> > are very much better than others. SLC sounds vastly superior compared |
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> > to MLC, but also much more expensive. |
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> > - Grant |
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> http://valhenson.livejournal.com/25228.html |
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> I would rethink that after reading that post. |
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Well, I do not agree with that post, but, that's because there are |
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a few caveats. First, do purchase quality Flash, like sandisk. Sandisk |
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have very expensive units that are touted as HD replacesments. I use |
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their lower end CF 4Gb media. Cheap flash chips will dies very easily. |
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Second. Do not use Flash drives to replace a busy hard drive. BAD IDEA |
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(period). Now if you what to build a 'pseudo' embedded server, say for |
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a firewall (nfs the log files and high throughput files), so you basically |
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occasionally write to the drive, then it's a good idea. I'm preparing |
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to build some nfs secondary servers, and slow down the updates, . If |
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the files get too much turn over, then those files will move, via NFS |
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mounts. |
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Third. Infrequent syncing and updating. |
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I've got one firewall up 3 months with no problems. That because |
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most everything runs via ram. It's a work |
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in progress. I know if you purchase one of those Sandisk Flash |
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based drives they work fabulously, but they are the price of |
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a 750 Gig Sata drive. Too rich for my blood. |
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My approach is minimalistic servers that move hi activity files |
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to somewhere in NFS land. |
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The good new is CF based drives use much less power |
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(much less generated heat) and are easy to duplicate. |
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After some more months, I intend to build a wiki page on what |
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I've learned..... unless somebody beats me to the punch.... |
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ymmv, |
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James |
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