But replace those enterprise drives in the raid with SSD drives in a raid and what happens? I just read some reviews on the Samsung 840 Pro series in a raid configuration and it is rather impressive. http://www.rwlabs.com/article.php?id=762 On 4/2/2013 1:53 PM, Lisa Kachold wrote: > For most intents and purposes an Enterprise system will be using RAID > controllers, with acceleration, so a SD card IS not a benefit. I have > a Dell with SD single level drive that is slower, but it's probably > due to Microsoft 7. > > > On Tue, Apr 2, 2013 at 1:37 PM, Eric Cope > wrote: > > There are two major types of SSDs. Multi-level cells and > single-level cells. Multi-level are cheaper and denser, but fail > sooner and are slower. Single level are more expensive, but should > fail less often. > > With respect to performance, I'd be more suspicious of the > software (and OS for that matter) controlling the drives rather > than the drives themselves. If the OS is tuned for HDD, then SSDs > may not gain any benefit. > > The High Performace MySQL blog posts data on SSD performance. Its > a good reference point. > > Eric > > > On Tue, Apr 2, 2013 at 1:24 PM, Lisa Kachold > > wrote: > > I have also found that in deference to their claims some of > the SSDs are SLOWER than regular enterprise drives. > I believe this new technology leaves a lot to be desired. > > > On Tue, Apr 2, 2013 at 12:27 PM, Derek Trotter > > > wrote: > > I have a question about SSDs. I've read that they like > the USB thumb drives can be written to a certain number of > times before they fail. What is the expected lifetime of > an SSD? They're terribly expensive if they're only going > to last 2 or 3 years. > > Derek > > -- > "I get my copy of the daily paper, look at the obituaries > page, and if I'm not there, I carry on as usual." > > Patrick Moore > > --------------------------------------------------- > PLUG-discuss mailing list - > PLUG-discuss@lists.phxlinux.org > > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss > > > > > -- > > (503) 754-4452 Android > (623) 239-3392 Skype > (623) 688-3392 Google Voice > ** > it-clowns.com > Chief Clown > > > > > > > > > > > > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss > > > > > -- > > (503) 754-4452 Android > (623) 239-3392 Skype > (623) 688-3392 Google Voice > ** > it-clowns.com > Chief Clown > > > > > > > > > > > > > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss