Messages in this thread | | | From | Yang Bai <> | Date | Mon, 16 Jul 2012 11:09:26 +0800 | Subject | How to map ata_link to physical link and ata_port to physical port |
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Hi hackers,
In our internal usage, we want to map the disk in system like sd{a,b,c} to physical disk slot. When the disk is attached to LSI HBA card, we find that we can rely on the phy attribute of the disk to find the slot since this attribute does not change no matter which kind of disks we attach or what order we attach the disks. But when doing this for AHCI, we do not find an attribute that we can rely on it to map the disk to slot. No matter ata_port number or ata_host number, when we changed the order we attached the disks to slots, they changed.
So I want to know is there some attribute we can get from AHCI that map the logical disk to physical slot?
Thanks, Yang
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