SAS/SATA Expander IC?

[rkruz]

Im looking for a simple IC expander solution to support a Host via RAID Controller (ATTO) to 6 solid state drives.

I see LSI and PMC have devices for 24 or more ports. These seem to require some development other glue logic or interfaces to get them to work.

Is there a simple drop in and use Expander IC for this simple architecture?

Host > RAID Controller > Drives 1....Drive 6 (SAS or SATA drives).

Any thoughts appreciated.

Thank you

 

[Mercutio]

The only small one I'm familiar with only works with extremely low-end Syba controllers. SAS expanders do exist, but most of them target large installations. Your best bet is probably just to get an HBA that supports a sufficient number of ports in the first place.

 

[rkruz]

ok. thanks. I think this architecture will require me to use the RAID controller which is limited to 8 SAS/SAtaS. So I really need to find, hopefully, the simplest way to expand a single SAS/SATA to 6 drives. I have 6 x 6 drives, 1 set per SAS/SATA 3G.

 

[Handruin]

Is this HP SAS expander too much of a glue logic as you referred to or is that not what you're looking for?

 

[rkruz]

thanks for that. looks like that type of device is what I will have to use. They several models to choose from.