I am fairly new to SCSI and storage. I have few LUNs exposed from a array to the ESX host. When I run sg_map -x on ESX 4.1 I see the LUN Ids shown as 0 for all the LUNs.
[root@SRESX41 ~]# sg_map -x
/dev/sg0 4 0 0 0 0 /dev/sda
/dev/sg1 4 0 1 0 0 /dev/sdb
/dev/sg2 4 0 2 0 0 /dev/sdc
/dev/sg3 4 0 3 0 0 /dev/sdd
/dev/sg4 4 0 4 0 0 /dev/sde
/dev/sg5 4 0 5 0 0 /dev/sdf
/dev/sg6 4 0 6 0 0 /dev/sdg
/dev/sg7 4 0 7 0 0 /dev/sdh
/dev/sg8 4 0 8 0 0 /dev/sdi
/dev/sg9 4 0 9 0 0 /dev/sdj
/dev/sg10 4 0 10 0 0 /dev/sdk
/dev/sg11 4 0 11 0 0 /dev/sdl
/dev/sg12 4 0 12 0 0 /dev/sdm
/dev/sg13 4 0 13 0 0 /dev/sdn
/dev/sg14 4 0 14 0 0 /dev/sdo
/dev/sg15 4 0 15 0 0 /dev/sdp
/dev/sg16 4 0 16 0 0 /dev/sdq
/dev/sg17 0 0 0 0 0 /dev/sdr
/dev/sg18 4 0 17 0 0 /dev/sds
/dev/sg19 4 0 18 0 0 /dev/sdt
/dev/sg20 4 0 19 0 0 /dev/sdu
But for the same LUNs the LUN id is shown different on the vSphere Client. Please find the attached screenshot of vSphere Clients. Can anyone provide me any idea onto why is the mismatch?
Attaching the missing image on behalf of arun_vj