This patch changes the naming scheme for sas disks. The original names used disk's sas address and lun, the new scheme uses sas address of the nearest expander (if available) and a phy id of the used connection. If no expander is used, the phy id of hba phy is used. Note that names that refer to RAID or other abstract devices are unchanged.
Name in raid configuration: hba_pci_address-sas-raid_sas_address-lunY-partZ
Name in expander bare disk configuration: hba_pci_address-sas-expander_sas_address-phyX-lunY-partZ
Name format without expanders: hba_pci_address-sas-phyX-lunY-partZ
66bba0e udevd: SAS: use SAS addr + PHY id in by-path whenever possible.
src/udev/udev-builtin-path_id.c | 96 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 95 insertions(+), 1 deletion(-)
Upstream: github.com