Q: sas3 ssd raid 6 performance with/without onboard cache

[mocha]

I suppose the title says it all.
Anyway allow me to elaborate a little.
Recently, I have acquired 8 micron S630DC ssds. I am planning to set up a raid 6 configs. The motherboard has onboard raid with 2G of cache. Therefore I am wondering does onboard caches helps with performance when in a all ssd setup?
Or the performance doesn't really matters that much?
Since 4ports are already taken by traditional hard drive and moving the data is a such chore


Sent from my iPad using Tapatalk

 

[MiniKnight]

Know what controller? That matters with SSDs. Do you have battery backup for write caching?

 

[mocha]

Know what controller? That matters with SSDs. Do you have battery backup for write caching?

The motherboard is X10DRH-CT and it's an Broadcom 3108
. And no , it's doesn't have battery backup at this moment . It's better to have battery backup right? Duh..... lol .


Sent from my iPad using Tapatalk

 

[i386]

Therefore I am wondering does onboard caches helps with performance when in a all ssd setup?

Dram is magnitudes faster than nand in the ssds, so yes, it will help to improve the performance. Even with all flash setups.

Infographic from intel showing latency of different storage technologies: