How to Assign Storage to Hosts Using the CMM ILOM CLI

Before You Begin

All SAS-2 devices (hosts, NEMs, and storage modules) must be powered on and functioning correctly in order to be properly discovered and made available for zoning configuration.

Note - You must wait at least five minutes after all SAS-2 devices are powered-on before attempting to assign storage module resources. This allows the CMM zmgtd daemon to discover all SAS-2 devices installed in the chassis.
These instructions assume a network connection to the CMM ILOM.
You must log in to the CMM ILOM CLI as a user assigned the Admin, User Management, Console, Reset and Host Control, and Read Only roles (a,u,c,r,o). These roles are required in order to perform a complete backup of the CMM ILOM configuration.

Open a terminal window and establish an ssh connection to the CMM by entering the following command:
# ssh –l accountname cmm_ip
Where accountname is the name of a user account with Administrator privileges (such as root) and cmm_ip is the IP address of the CMM.
The login prompt is displayed.
Log in.
For example:
/hostname/login: accountname
password: yourpassword
After you have successfully logged in, the prompt will be displayed:
–>
Confirm that you have the minimum CMM ILOM firmware version required for zoning (as described in System Requirements) by entering the command:
–> version
Example output might look like:
```
version SP firmware version: 3.0.10.15.a
SP firmware build number: 201022
SP firmware date: Mon Mar 29 10:39:46 EST 2010
SP filesystem version: 0.1.9
```
If you do not have the minimum version required, update the CMM ILOM firmware before continuing.
Change directories to sas_zoning by entering the command:
–> cd /STORAGE/sas_zoning/

Check to see if sas_zoning is enabled by entering the command:

–> show

Example output might look like:

/STORAGE/sas_zoning
    Targets:

    Properties:
        zone_management_state = disabled
        reset_password_action = (Cannot show property)
        reset_access_action = (Cannot show property)

    Commands:
        cd
        set
        show

->

If zone_management_state = disabled, enable zoning by entering:

–> set zone_management_state=enabled

You will see a warning. You must enter y when prompted to enable zoning.

********* WARNING *********
Enabling CMM zone management will result in the clearing of all zoning
configuration in the installed chassis SAS hardware, and any SAS I/O
in progress will be interrupted.

Are you sure you want to enable CMM zone management  (y/n)? y
Set 'zone_management_state' to 'enabled'

->

Identify your SAS-2 server modules, NEMs and storage modules by entering:
–> show –level all
You will see a listing of all blades and SAS-2 domain storage resources in the chassis. Make a note of where devices and hosts are and decide how you will divide your storage resources. The following examples will help you interpret the list.
- The first listing is an example of what's actually in the chassis (blades and NEMs). BL and NEM numbers represent physical slot numbers in the chassis. Empty chassis blade slots will not be shown:
```
/STORAGE/sas_zoning
    Targets:
        BL0
        BL1
        BL2
        BL3
        BL4
        BL5
        BL6
        BL7
        BL8
        BL9
        NEM0
        NEM1

    Properties:
        zone_management_state = enabled
        reset_password_action = (Cannot show property)
        reset_access_action = (Cannot show property)
```
- Example listing for a host blade:
```
 /STORAGE/sas_zoning/BL0
    Targets:

    Properties:
        add_storage_access = (Cannot show property)
        remove_storage_access = (Cannot show property)
```
  Note - Storage internal to the server module, or connected to the server's PCIe ExpressModule accessory slots will not be shown and cannot be zoned using the CMM ILOM utility.
- Example listing for a storage module. HDD numbers represent physical slot numbers in the storage module. Empty HDD slots will not be shown:
  
  Note - HDD applies to either mechanical or solid-state disk drives.
```
/STORAGE/sas_zoning/BL2
    Targets:
        HDD0
        HDD1
        HDD2
        HDD3
        HDD4
        HDD5
        HDD6
        HDD7

    Properties:
```
- Example listing for a storage module hard disk drive:
```
 /STORAGE/sas_zoning/BL2/HDD0
    Targets:

    Properties:
        type = Hard Disk
        disk_type = SAS
        wwn = 0x5000c50003d3a765, 0x5000c50003d3a766
        sas_speed = 6.0 Gbps
        add_host_access = (Cannot show property)
        remove_host_access = (Cannot show property)
```
- Example listing for a NEM. The NEM number represents the physical NEM slot number in the chassis:
```
 /STORAGE/sas_zoning/NEM0
    Targets:
        SAS

    Properties:
```
- Example listing for a SAS-NEM's external SAS ports:
```
 /STORAGE/sas_zoning/NEM0/SAS
    Targets:
        PORT0
        PORT1
        PORT2
        PORT3

    Properties:
```
- Example listing for one of the external ports of a SAS-NEM. PORT number represents external physical SAS-NEM port labeling:
```
 /STORAGE/sas_zoning/NEM0/SAS/PORT0
    Targets:

    Properties:
        connected = false
        wwn = (none)
        sas_speed = (none)
        add_host_access = (Cannot show property)
        remove_host_access = (Cannot show property)
```
  Note - At the release of this document, there is no support for connecting external SAS storage to a SAS-NEM's external SAS ports. Refer to the NEM Product Notes for the latest information on support for the external SAS ports.

Assign storage to a host. Assignment is done on an individual storage device basis. Choose a method described in the following examples:

Note - Access assignment is mutual. You can assign a storage device to a host, or a host to a storage device. The result is the same.

Method 1—Command examples for assigning storage module devices to a server module:

cd STORAGE/sas_zoning/BL0	Use the `cd` command to access the host server module that will be assigned storage.
set add_storage_access=/CH/BL2/HDD0	Assign HDD0 of the storage module in blade slot 2 to the current host.
set add_storage_access=/CH/BL2/HDD0,/CH/BL2/HDD1	Or, assign multiple devices in a single command line. Use the full path to the device and separate each device with a comma (no space).
show /STORAGE/sas_zoning/BL0 Targets: 0 (/CH/BL2/HDD0) 1 (/CH/BL2/HDD1)	Use the `show` command to confirm assigned devices to the current host.

Method 2—Command examples for assigning a server module to storage module devices:

cd /STORAGE/sas_zoning/BL2/HDD0	Use the `cd` command to access the storage module device (in this case HDD0).
set add_host_access=/CH/BL0	Assign the current device (HDD0) of the storage module to the host in blade slot 0.
show /STORAGE/sas_zoning/BL2/HDD0 Targets: 0 (/CH/BL0)	Use the show command to confirm assignment of the current device.

Removing storage can be done using the methods described above and changing the add_storage_access or add_host_access commands to remove_storage_access or remove_host_access.

Save your CMM ILOM configurations to a backup file. Change to the /SP/config directory.
-> cd /SP/config
If you want sensitive data, such as user passwords, SSH keys, certificates, and so forth, to be backed up, you must provide a passphrase.
-> set passphrase=passphrase
To initiate the Backup operation, enter the command:
-> set dump_uri= transfer_method://username:password@ipaddress_or_hostname/directorypath/filename.config
Where:
- transfer_method can be tftp, ftp, sftp, scp, http, or https.
- username is the name of the user account on the remote system. (username is required for scp, sftp, and ftp. username is not used for TFTP, and it is optional for HTTP and HTTPS.)
- password is the password for the user account on the remote system. (password is required for SCP, SFTP, and FTP. password is not used for TFTP, and it is optional for HTTP and HTTPS.)
- ipaddress_or_hostname is the IP address or the host name of the remote system.
- directorypath is the storage location on the remote system.
- filename is the name assigned to the backup file.
For complete instructions on using ILOM Backup/Restore, refer to your Oracle Integrated Lights Out Manager (ILOM) 3.0 CLI Procedures Guide.
Once you have backed-up your CMM ILOM configurations, proceed to your host(s) to format and create volumes for host-assigned disks.

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