Hi,

I'm just wondering what the status is of the sata port multiplier support.

I've seen two applicable bug IDs for this : 6422924 and 6409327 , but no real 
update to them.

I'm looking to put in a port multiplier to connect to a RAID tower (PCIe x1 
card, dual port, each supports 4x sata; tower has two esata plugs, each one 
splitting to 4 drives giving 8 drives). Chipset is a 3132 on the controller, 
and 3176 on the tower (not 100 percent sure on the tower, but pretty sure).

I have no intentions of running hardware raid, I just want to be able to see 
all 8 individual disks. Any raid work will be done with zfs (my preference is 
mirrored pairs anyway - easier for off-site backups).

1. Is this possible at this point ?
2. Is there any progress at all on this ? If so, at what build did Solaris 
Express (Nevada) incorporate the fixes ?
3. Are there any port multipliers supported by Solaris at this point (that come 
on a PCIe x1 card ; my test box is very limited for slots).

If "no, they aren't supported yet", does anyone have any update to progress on 
it (an eta would be nice, it would let me know if I need an interim measure for 
large scale storage or should wait a couple months for something that's nearing 
completion).

Port multipliers are becoming quite common now, I understand that Linux 
supports them already. 

The little information I've gotten from the Net on this topic is unclear ; 
there is every indication that as of Jan 2008 sata port multipliers were *not* 
supported, but there seems vague references nowadays that they may be.

Thanks in advance

-Paul
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