Motherboards Marvell Controller on Asus P8P67 Mobo Any Good?

I was just about to say the same myself!

 

You're talking about under partitioning to increase the OP yes?

it all depends upon your usage...


Well, i always work to *at least* 28% total OP & 20% of the partitioned space not being used - though this is both because i buy SDDs with this in mind & want to be able to write what i want to them...

(though i use my SAS HDDs for video editing & whatnot as they're damn good for sequential r/ws)

...however that's looking at something approaching the ideal scenario for most workstation uses - unless you've got an incredibly heavy r-e-w cycle usage, esp a small random i/o one.

[NB with a SF SSD with raise, you actually only aim for ~21% OP with the other 7% being raise (giving a 28% total) - whilst not 100% exactly comparable, this works on average d.t. the SF controller compressing data as it's written & so having significantly less wear on the nand d.t. the lower write amplification...

it's about having something easy to work with rather than overly complicating everything]​

Again, for uses where the data will be (effectively) static for weeks/months - ie a second SSD for games installations only - then there's no value in increasing the OP or leaving particularly much free space.


For an OS/apps/etc use, with your 120GB SSD, you'll have 128GB of nand - so 28% would be formatting to ~92GB... ...& knocking 20% off of that (that's left as free space) would take you down to ~74GB of space for data.

This, again, though is something approaching the ideal for most uses.


To work it backward with prioritising...

First off, you really need to be looking at at least 15% of the formatted space being unused - & a min of an extra 7% OP (this is lower than the extra OP recommendation for the 830 btw, but is a good min starting point).


Now, if you had a non-SF, you have 128GB of nand - so 14% would be formatting to 110.8GB - & knocking off 15% (that's left as free space) would give you ~94GB of space for data.

& with a SF, you have 128GB of nand but ~7% is raise - so 21% would be formatting to ~101GB - & knocking off 15% (that's left as free space) would give you ~86GB of space for data.

[NB in these two scenarios, assuming the nand had identical specs, the SF would have a significantly better longevity & maintenance of speed with an identical r-e-w cycle load - but, again, it's about having an easy min %age rule to use rather than overly complicating things with too many scenarios.]​

Naturally, if you needed less of the space for data, you can increase the free space & OP - firstly taking the free space up to 20% & then increasing the OP further toward the 28%...

...& if you needed more of the space for data, go for the 15% free space first.

[NB whilst it's not an exact science, if you need even less of the capacity for data than the 'ideal', you add most of it to the OP - with the 120GB in this machine, from the 128GB of actual nand, <50% is OP & ~25% (of the total capacity) is free space... ...simply as i don't need to use any more.]

 

That made almost no sense to me what so ever. I do hope you cut and paste this from a file you have as that is a lot of typing for me to not understand it at all.

My SSD is an OS/Apps drive, all other small writes from downloads etc go to my HDD. I use my HDD as storage and try to keep most of my small writes to it too. Moved all music onto it, linking the folders in windows etc

 

Sorry about that...

...& no, i typed it off the top of my head as i always do with things - it means that i think everything through each time to check its validity.

it was about covering things properly.


Anyway, the important bit was, as a minimum recommendation for a 120/128GB SSD for OS/apps/etc usage -

"Now, if you had a non-SF, you have 128GB of nand - so 14% would be formatting to 110.8GB - & knocking off 15% (that's left as free space) would give you ~94GB of space for data.

& with a SF, you have 128GB of nand but ~7% is raise - so 21% would be formatting to ~101GB - & knocking off 15% (that's left as free space) would give you ~86GB of space for data."

- again with the SF being more far robust in these two scenarios...


...but it's about having as simple a rule to follow as possible -

1. add a min of 7% as extra OP & keep 15% of the formatted space free...

2. ...& aim for 28% total OP (inc the portion used for raise on the SFs) & keeping 20% of the formatted space free.


[Edit]

3. & ignore the above rules completely if you're using the SSD for (effectively) static data - like a games installation only SSD (unless you're constantly installing & uninstalling games).

 

I leave things installed, having the space for everything to be installed all on the same location is my aim. With some overhead for more games and apps in the future. I think a single large SSD for OS/MainGames I play and the current 120gb drive to be for anything else. Obviously in the future I could always buy an even bigger SSD as main or the same size to replace my 120gb.

Though I doubt I will need too.