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I wrote something about SSD in the past. The following is slight re-hash and some other observation as well.
1. If you are going to use SSD for serious work scenario
1.1 Basic understanding of RAID-1 Mirror
1.2 You write 100GB to SSD-A
1.3 You then write 100GB to SSD-B, per demand of Mirror
1.4 If engineering spec is "extremely good" for the SSD model, sometimes they exhibit similar characteristic for certain aspect. I said "sometimes". Obviously for heavy duty products, firms have a lot of special handling to address enterprise demand.
1.5 Since SSD has wear-down issue, under this scenario, when it wears down SSD-A, it may soon wear down SSD-B as well.
2. Hence, under consideration, "heterogeneous" SSD setup is better.
2.1 You have SSD-A under model A with characteristic-set-A
2.2 You have SSD-B under model B with characteristic-set-B.
2.3. If you are different brand, diff controller, diff grade of flash, diff of everything, sometimes even better.
2.4 It ensures codition is varied enough so you will mostly have different wear-down time-frame.
3. Referring back to SSD for serious work scenario. My apology but read very carefully the following with logic. I obviously understand there would be a lot of counter-arguments, but read with logic.
3.1 For analogy, say a family,
3.2 If you use one SSD generic any type, you are a SINGLE-person. You are very flexible. You can do a lot of things fairly quick. You can re-arrange quick if you have the necessary tools.
3.3 If you are using highly reliable enterprise SSD for home use, sometimes perhaps you are in Single-Parent family scenario. Reliability is key because you have load or dependancy. High speed is plus but not necessary but things should work with certain expectation.
3.4 However, single-parent family has a lot of demand/pressure due to nature of modern life, especially if you have many kids as well, so naturally some choose to have additional resources (SSD/hard disk or other supportive resources, looking both ways). Read sociology for demand of single-parent family.
3.5 So a Dual-SSD setup, just like family, are for people with commitment, just like family building, where they now feel a destiny, reliability and other support consideration comes into place. They are willing to contribute to build a foundation. A lot may rely on them.
3.6 So, a "heterogeneous" SSD family ensures a lot of consideration.
3.6.1 Consider the SAME-Model SSD-Mirror or "heterogeneous" SSD-mirror family. When you mirror, do you want to have a setup that may fail at the same time, by design? "heterogeneous" SSD family should be better
3.7 From here, you see, "heterogeneous" SSD family is much better.
3.8 Obviously, human family is much more complex than SSD family, I agree, But you get the basic idea.
comments ?
1. If you are going to use SSD for serious work scenario
1.1 Basic understanding of RAID-1 Mirror
1.2 You write 100GB to SSD-A
1.3 You then write 100GB to SSD-B, per demand of Mirror
1.4 If engineering spec is "extremely good" for the SSD model, sometimes they exhibit similar characteristic for certain aspect. I said "sometimes". Obviously for heavy duty products, firms have a lot of special handling to address enterprise demand.
1.5 Since SSD has wear-down issue, under this scenario, when it wears down SSD-A, it may soon wear down SSD-B as well.
2. Hence, under consideration, "heterogeneous" SSD setup is better.
2.1 You have SSD-A under model A with characteristic-set-A
2.2 You have SSD-B under model B with characteristic-set-B.
2.3. If you are different brand, diff controller, diff grade of flash, diff of everything, sometimes even better.
2.4 It ensures codition is varied enough so you will mostly have different wear-down time-frame.
3. Referring back to SSD for serious work scenario. My apology but read very carefully the following with logic. I obviously understand there would be a lot of counter-arguments, but read with logic.
3.1 For analogy, say a family,
3.2 If you use one SSD generic any type, you are a SINGLE-person. You are very flexible. You can do a lot of things fairly quick. You can re-arrange quick if you have the necessary tools.
3.3 If you are using highly reliable enterprise SSD for home use, sometimes perhaps you are in Single-Parent family scenario. Reliability is key because you have load or dependancy. High speed is plus but not necessary but things should work with certain expectation.
3.4 However, single-parent family has a lot of demand/pressure due to nature of modern life, especially if you have many kids as well, so naturally some choose to have additional resources (SSD/hard disk or other supportive resources, looking both ways). Read sociology for demand of single-parent family.
3.5 So a Dual-SSD setup, just like family, are for people with commitment, just like family building, where they now feel a destiny, reliability and other support consideration comes into place. They are willing to contribute to build a foundation. A lot may rely on them.
3.6 So, a "heterogeneous" SSD family ensures a lot of consideration.
3.6.1 Consider the SAME-Model SSD-Mirror or "heterogeneous" SSD-mirror family. When you mirror, do you want to have a setup that may fail at the same time, by design? "heterogeneous" SSD family should be better
3.7 From here, you see, "heterogeneous" SSD family is much better.
3.8 Obviously, human family is much more complex than SSD family, I agree, But you get the basic idea.
comments ?
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