I have the following setup:
Notebook (Ubuntu 9.10, 2.6.31-14 amd64) with ICH9M controller in AHCI
mode and an external storage box (Sil5744, 2 HDDs) connected via eSATA.
The box supports JBOD and the manufacturer says that a Port Multiplier
capable eSATA port is needed to see both HDDs.
I see only one HDD.
Here is part of the dmesg output from startup:
[ 0.725096] ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 4 ports 3 Gbps
0x23 impl SATA mode
[ 0.725099] ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo
pio slum part ems
The pmp flag is not present but several sources claim that ICH9 supports
Port Multiplier.
Should Port Multiplier be available for ICH9M?
Can I enable it somehow maybe by using a module option?
Regards, Peter.
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