Finding Boot disk esxi :-

By | 28th October 2014

Get the boot disk

~ # esxcfg-info -b
d3423273-74866287-4957-deafeb817dc7

Get the naa id of the disk using vmkfstools

~ # vmkfstools -Ph /vmfs/volumes/d3423273-74866287-4957-deafeb817dc7
vfat-0.04 file system spanning 1 partitions.
File system label (if any):
Mode: private
Capacity 249.7 MB, 103.6 MB available, file block size 4 KB
UUID: d3423273-74866287-4957-deafeb817dc7
Partitions spanned (on “disks”):
naa.600508b1001c9bf288be32a406a9974d:6
Is Native Snapshot Capable: NO
~ #

Use esxcfg-scidevs to find more details and the LUN.

~ # esxcfg-scsidevs -l | grep -i 600508b1001c9bf209be32a406a9974d
naa.600508b1001c9bf209be32a406a9974d
Display Name: HP Serial Attached SCSI Disk (naa.600508b1001c9bf209be32a406a9974d)
Console Device: /vmfs/devices/disks/naa.600508b1001c9bf288be32a406a9974d
Devfs Path: /vmfs/devices/disks/naa.600508b1001c9bf209be32a406a9974d
vml.0200010000600508b1001c9bf209be32a406a9974d4c4f47494341
~ #