What happened to the `zfs set shareiscsi=on` command?

[AveryFreeman]

Hey,

I see reference to this command occasionally, usually in pretty old literature, and I'm just wondering what happened to it:

zfs set shareiscs=on pool/zvol

Has it been depreciated?

I found reference to it here:

ZFS Advanced Topics - ZFS Administration Guide

illumos.org

Also ZoL:

iSCSI support for ZoL by FransUrbo · Pull Request #1099 · openzfs/zfs

Add support for the shareiscsi property. It currently (as of Sept 2, 2014) supports four different iSCSI target implementations (in this order of discovery): IET http://iscsitarget.sou...

github.com

 

[gea]

Yes, depreciated.
Originally Sun intended iSCSI sharing to be as simple as NFS and SMB where a set=on is enough. In the end Sun developped Comstar, a iSCSI framework that is much more powerful and a lot faster and prepared for enterprise needs.

Configuring Storage Devices With COMSTAR - Oracle Solaris Administration: Devices and File Systems

This book is for anyone responsible for administering one or more systems that run the Oracle Solaris 11 release. The book covers a range of Oracle Solaris system administration topics related to managing removable media, disks and devices and file systems.Topics are described for both SPARC...

docs.oracle.com

 

[AveryFreeman]

Oh OK, cool. Kinda too bad they didn't keep it, it looks a lot easier. I wonder if any of the remnants still exist on ZoL...

 

[gea]

The ZFS/kernelbased services like SMB were never ported outside Solarish. Even a smbshare=on that is available on ZoL only activates SAMBA there.

Beside that, iSCSI sharing is mostly there for enterprise needs where a simple set to on is not enough. Quite often you want targets with many LUNs, target groups or target portal groups to organise a mess with many LUNs.

Basically Comstar is not too complicated. You need a logical unit based on a zvol, file or raw disk and a target that can see the logical units (has views). In napp-it I have added a simple iSCSI=on mechanism in menu ZFS filesystems that cares about in the background to allow a simple sharing=on on a per filesystem base that you can even re enable on a replicated filesystem.

 

[AveryFreeman]

Beside that, iSCSI sharing is mostly there for enterprise needs where a simple set to on is not enough. Quite often you want targets with many LUNs, target groups or target portal groups to organise a mess with many LUNs.

It's so true, that's one reason I really love OmniOS/Illumos platform. the zfs share functionality on it vs linux & freebsd is different as night and day.

Basically Comstar is not too complicated. You need a logical unit based on a zvol, file or raw disk and a target that can see the logical units (has views). In napp-it I have added a simple iSCSI=on mechanism in menu ZFS filesystems that cares about in the background to allow a simple sharing=on on a per filesystem base that you can even re enable on a replicated filesystem.

Yeah, it really wasn't so bad, I got through it without Napp-It for the first time this last LUN I put up. Definitely takes some getting used to since there are so many different applications required for the whole process. I can see why they made it that way, but it's a lot more logical than user friendly. Thank god the Oracle docs are well written.