Avatar of philb19

asked on 

LUNS inside a NFS volume

hi having trouble understanding why you would have LUNS inside NFS volume. My understanding is LUNS are used in block storage - iSCSI or FC. NFS however is "file" level. So if I was using a windows box (no hypervisor) without esx id use a LUN for iSCSI or Fchannel.

If I had VMware then I wouldnt need to use a LUN in storage I could get esx (abstraction layer) to I/O disk and use nfs  - no LUN

Im reading a book that talks about maximum LUNS per nfs volume. So when would i have LUNS inside nfs volume.? thanks
StorageVMwareStorage Hardware

Avatar of undefined
Last Comment
Paul Solovyovsky
Avatar of Paul Solovyovsky
Paul Solovyovsky
Flag of United States of America image

You are correct.  The Datastores in VMware are connected either with block or file.  Block can be iSCSI/Fibre Channel/FCOE and file would be NFS.

Your premise is valid, you don't need LUNs to attach a NFS mount.
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Flag of United Kingdom of Great Britain and Northern Ireland image

Blurred text
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
Avatar of philb19


Ok thanks but why would my VMware book - Talk about max LUNS inside nfs volume? - It is a VMware publication.
Check the errata on the book, it may be talking about max volumes or max VMs in a volume on a host.  What number is giving you?
Avatar of philb19


heading in text - NFS in vmware

best practices

use 100 to 400 vmdk files per NFS volume. The maximum possible "logical unit number " LUN is 256 for a maximum size of 64 TB per NFS volume

does this shed any light?
looks like an error to me!

max number of LUNs is 256, but a LUN is iSCSI or FC!
I concur, check min/max document for max. # of NFS volumes.

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Top Experts
Get a personalized solution from industry experts
Ask the experts
Read over 600 more reviews


IBM logoIntel logoMicrosoft logoUbisoft logoSAP logo
Qualcomm logoCitrix Systems logoWorkday logoErnst & Young logo
High performer badgeUsers love us badge
LinkedIn logoFacebook logoX logoInstagram logoTikTok logoYouTube logo