While exploring esxi, I found two commands which provide quite good inforamtion

[root@myserver@openwriteup.com:~] voma -f
voma: option requires an argument — ‘f’
Usage:
voma [OPTIONS] -m module -d device
-m, –module Name of the module to run.
Available Modules are
1. lvm
2. vmfs
3. vmfsl
4. ptbl
-f, –func Function(s) to be done by the module.
Options are
query – list functions supported by module
check – check for Errors
fix – check & fix
-d, –device Device/Disk to be inspected
-s, –logfile Path to file, redirects the output to given file
-v, –version Prints voma version and exit.
-h, –help Print this help message.
Example:
voma -m vmfs -f check -d /vmfs/devices/disks/naa.xxxx:x

 

[root@myserver@openwriteup.com:~]
[root@myserver@openwriteup.com:~] vmkvsitools
usage: vmkvsitools [options] [function] [arguments]
or [function] [arguments]

Options:
–cache, -c Perform the operation on a given VSI cache file

Functions:
lspci
ps
hwclock
vmware
irqinfo
bootOption
amldump
pci-info
pidof
userspaceof
vdu
lsof
vdf
pkill
pgrep
uptime
[root@myserver@openwriteup.com:~] vmkvsitools bootOption
bootOption: no option specified
bootOption
-r –raw Print w/o annotation
-a –all Print f,i,u,w,R boot options
-f –fsck FS Check Mode
-i –audit Audit Mode
-R –rollback Booted after a rollback
-p –pxeboot Booted via (g)PXE
-k –kernel Kernel used to boot
-m –modules List of modules used to boot
-o –options List of boot options used to boot
-b –bootOptionFiles List of boot option files to boot
-c –bootOptionFileContent Content of a boot option file used to boot
-C –bootOptionFilesContent Content of all boot option files used to boot
[root@myserver@openwriteup.com:~] vmkvsitools bootOption -a
FS Check : 0
Audit Mode : 0
Booted after rollback : 0
[root@myserver@openwriteup.com:~] vmkvsitools bootOption -k
Kernel : /jumpstrt.gz
[root@myserver@openwriteup.com:~]