NX4 reconfigure drives

I assume you are still ok with your raid config

Just delete all the CIFS servers, shares and file systems

Actually I would like to rework the RAID group. Currently I have two RAID groups with a total of 8 Drives. I would like to combine them into one large group.  Then out of that create one large LUN.

Thanks, Don

Thanks very much for your help.

I do have one more question on this:

As I was going in and deleting the iSCSI LUNs so I can create the larger storage share I get:

server_2 :

  removeLU: lun 4 in use, can't be removed

  failed to removeLU err=16

No recommended action is available. For more information

  and assistance: 1. Log into http://powerlink.emc.com and go to Support >

  Search Support. 2. Use the message ID or text from the error message's brief

  description to search

Any suggestions?

Thanks Don

Either it's still used by an ISCSI server or there is a snapshot

Check the data mover log if there are more details

I see that I still have a iSCSI LUN under the sharing tab---iSCSI --- using that file system. Can I just delete that iSCSI LUN?

Thanks, Don

you delete iSCSI LUN first and then delete file system it was using

It has been a while since I played with ISCSI on a NX4 – I think you first need to remove it before you can delete it

See the Configuring iSCSI Targets on Celerra manual – it has procedures for deleting snapshots (if necessary)

I still get an error when I try and delete the iSCSI LUN do I need to delete the mount of the file system first?

Thanks, Don

server_2 :

removeLU: lun 4 in use, can't be removed

failed to removeLU

err=16

what error message are you getting , are there any snapshots associated with iSCSI LUNs, replication sessions ?

[nasadmin@mcsan ~]$ nas_fs -info mcstorage5

id        = 31

name      = mcstorage5

acl       = 0

in_use    = True

type      = uxfs

worm      = off

volume    = v146

pool      = clarata_archive

member_of = root_avm_fs_group_10

rw_servers= server_2

ro_servers=

rw_vdms   =

ro_vdms   =

auto_ext  = no,virtual_provision=no

deduplication   = Off

stor_devs = SL7E9083700067-0007,SL7E9083700067-0006,SL7E9083700067-0008,SL7E9083700067-0019,SL7E9083700067-0018

disks     = d22,d21,d20,d16,d15

disk=d22   stor_dev=SL7E9083700067-0007 addr=c0t1l15        server=server_2

disk=d22   stor_dev=SL7E9083700067-0007 addr=c16t1l15       server=server_2

disk=d21   stor_dev=SL7E9083700067-0006 addr=c0t1l14        server=server_2

disk=d21   stor_dev=SL7E9083700067-0006 addr=c16t1l14       server=server_2

disk=d20   stor_dev=SL7E9083700067-0008 addr=c0t1l12        server=server_2

disk=d20   stor_dev=SL7E9083700067-0008 addr=c16t1l12       server=server_2

disk=d16   stor_dev=SL7E9083700067-0019 addr=c16t1l9        server=server_2

disk=d16   stor_dev=SL7E9083700067-0019 addr=c0t1l9         server=server_2

disk=d15   stor_dev=SL7E9083700067-0018 addr=c0t1l8         server=server_2

disk=d15   stor_dev=SL7E9083700067-0018 addr=c16t1l8        server=server_2

No - it wouldn't let you and it wouldn't help

Please read the manual I mentioned, use CLI commands and post the command plus output including any errors in the data mover

Anything else is just guessing

ok here is the results of the snapshot list

[nasadmin@mcsan ~]$ server_iscsi server_2 -snap -list -target mcstorage -lun 4
server_2 :
Snap Name                                     Lun Number      Target          Create Time

[nasadmin@mcsan ~]$

I'll assume then that a LUN mask is still in place to a logged in initiator.  Can you run the following command?

server_iscsi server_2 -mask -list

If so, you'll want to "clear" the mask with the following command:

server_iscsi server_2 -mask -clear

Basically, this is the analogy to a Storage Group of a block configuration (presented from the SP's).  Just as you need to remove it first from the Storage Group, if presented from the SP's, you need to unpresent it from the host by removing the LUN mask.