SSD Cache slow connected to SAS Card

[Tekminute]

I need a little help with this I thought I had it solved but I was very wrong, this is the problem I’m having, I have 6 ssd’s connected to a SAS Lsi 2008- 8i card, when write to a cache enable write speed is about 300mb/s but if I share the cache and write to it speeds are about 900mb/s

I can’t figure it out any help would be appreciated 

[JorgeB]

1 minute ago, Tekminute said:

but if I share the cache and write to it speeds are about 900mb/s

Do you mean write to the disk share? If yes that's quite common, see here for a recent example.