topic NetApp 2020 not seeing shelf in ONTAP Discussions

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 05 Jun 2025 06:43:17 GMT

I just installed a new shelf in a NetApp 2020. It is not seeing the shelf. Below is what I get when I look at the Shelves Report.

Shelf Name Channel Name Shelf ID Shelf Type Shelf State Module Module State

UNUSED shelf0 UNUSED 0 (the ID is set to 1) - Online a unreachable

All lights are green and there are no faults.

Thanks,

Re: NetApp 2020 not seeing shelf

aborzenkov — Thu, 20 Oct 2011 17:18:05 GMT

It would help if you named Data ONTAP version, shelf model and how you connected it (from which filer port(s) to which shelf port(s))

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 17:25:31 GMT

Data ONTAP version 7.3.3

Shelf Model: DS 14mk2 AT

Usinig FC

From the 2020 0a to the IN on shelf controller 1 (on the top)

From the 2020 0b to the IN on shelf controller 2 (on the bottom)

Re: NetApp 2020 not seeing shelf

aborzenkov — Thu, 20 Oct 2011 17:54:21 GMT

Are onboard ports configured as target or initiator (or configured at all)? "fcadmin config". Which speed they run currently (can check using "sysconfig -a")?

Which shelf modules are used?

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 18:06:21 GMT

They are set as

Type - initiator

Local State - configured

Status - Online

Link Data Rate 2Gbit

Re: NetApp 2020 not seeing shelf

aborzenkov — Thu, 20 Oct 2011 18:16:05 GMT

Could you paste output of "storage show"?

Re: NetApp 2020 not seeing shelf

RodrigoNascimento — Thu, 20 Oct 2011 18:24:28 GMT

Hi,

Maybe all the disks are assigned for another system (controller). If this is the case, you need to boot the controller, go to special boot menu, go to maintenance mode and runs a disk reassign.

See you,

Nasc

NetApp - Enjoy it!

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 18:25:09 GMT

I can't do that; it is in a close area.

I did the command; it looks like I can see disks on that interface.

Here is an example of what I see.

Disk Shelf Bay Serial

0a.16 1 0 J813715

I see the 0b.29 disk and the disks that are in the 2020.

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 18:29:49 GMT

This is right out of the box new.

NetApp 2020 not seeing shelf

RodrigoNascimento — Thu, 20 Oct 2011 18:41:23 GMT

If you have the opportunity to enter in maintenance mode, do this and runs a "disk show", maybe the guys at factory turn the shelf on to upgrade firmware at disks and/or ESH modules.

If you see the disks in maintenance mode, you must run a "disk reassign" to owner the disks.

See you,

Nasc

NetApp - Enjoy it!

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 18:49:49 GMT

disk show -n shows all the disks in the shelf that are not owned.

Can I take ownereship without reboot the 2020?

Re: NetApp 2020 not seeing shelf

aborzenkov — Thu, 20 Oct 2011 18:51:32 GMT

Yes, using "disk assign" command (you need to specify which disks to assign).

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Thu, 20 Oct 2011 18:53:49 GMT

Thanks, I found the command syntax. But I need to go to a stupid meeting. Will let you know.

Thanks,

NetApp 2020 not seeing shelf

RodrigoNascimento — Thu, 20 Oct 2011 18:54:15 GMT

Yes, of course!

Sorry, I said about the Maintenance Mode, because was understand that the disks weren`t show at disk show -n.

disk assign <disk id>

See you !

Nasc

NetApp - Enjoy it!

NetApp 2020 not seeing shelf

JERRY_HUTCHINS — Fri, 21 Oct 2011 21:33:12 GMT

Well thanks, I was able to assign ownership of the disks and add them to the pool and I am creating a new aggregate.