Optimum strip size for various SSDs and OS

[gugucom]

I noticed that my Supertalent MEs were experiencing massive speed loss in tests when file size fell under 32k and set my strip size accordingly. If I remember right I went to 64k.

When I cloned my OS X drive I got something like 30 MB/s average and initally it was down at 10. Later when I was copying Gigabyte files (Winclone images) it got up to 110 MB/s peak value.

I have no simmillar info for my new Intels 2nd gen. So provisionally I'll be using a simillar value.

I also noticed that Windows disk management program uses 4128k as a standard which appears massive and probably usefull for HDDs.

Could somebody with more in depth knowledge advise a rational choice for OS x and Windows for different SSDs?

 

[nanofrog]

I noticed that my Supertalent MEs were experiencing massive speed loss in tests when file size fell under 32k and set my strip size accordingly. If I remember right I went to 64k.

When I cloned my OS X drive I got something like 30 MB/s average and initally it was down at 10. Later when I was copying Gigabyte files (Winclone images) it got up to 110 MB/s peak value.

I have no simmillar info for my new Intels 2nd gen. So provisionally I'll be using a simillar value.

I also noticed that Windows disk management program uses 4128k as a standard which appears massive and probably usefull for HDDs.

Could somebody with more in depth knowledge advise a rational choice for OS x and Windows for different SSDs?

Internally, SSD's are using 4KB pages, but to the system blocks are 512KB, or 128 pages per block.

128 pages * 4KB = 512KB for the stripe yeilds the best results.

I've also seen 512 used in an article or two.

 

[gugucom]

I guess thats true then for Windows as well. OS X will also have much smaller file sizes.