Installation and configuration
This chapter shows how to install and configure IBM FlashSystem V9000. The system environmental requirements, cabling, and management are described. Installation from the initial setup procedure through configuring the system for use is demonstrated.
This chapter includes the following topics:
4.1 Installation overview
Installation and initial configuration of IBM FlashSystem V9000 requires the completion of various tasks. An IBM Service Support Representative (SSR) installs a single fixed building block without switches. For scaled building blocks all configuration is done by IBM lab services. An SSR is responsible for the physical installation only. After this is done, the customer can then set up the system.
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Important: The customer worksheets in 2.2.1, “Racking considerations” on page 31 must be completed before the installation because they determine the location of the components in the rack.
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4.1.1 Tasks for the IBM SSR or IBM lab-based services
During installation, the IBM SSR or the IBM lab-based services perform the tasks described in this section. To learn about the steps that will be performed, limitations, and requirements, see the “Installing” topic at IBM Knowledge Center.
Hardware installation
To install the IBM FlashSystem V9000 hardware, an IBM SSR or IBM lab-based services must complete the following tasks:
1. Install the AC3 control enclosures and AE3 storage enclosure in the rack.
2. Connect the components as planned using Fibre Channel (FC) either in a direct attach configuration, or with FC switches for scaled configurations, and with switched fabrics for the host, the Ethernet management switch, and to the power distribution units.
3. Connect the components, using FC with or without switches, the Ethernet management switch, and connecting the components to the power distribution units:
– For a fixed building block installation, the SSR completes the cabling.
– For a scalable building block installation, IBM lab-based services completes the cabling.
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Note: For details about the procedure to power up IBM FlashSystem V9000, see the topic about powering on and powering off an IBM FlashSystem V9000 building block.
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Initial setup tasks
After the hardware is installed in the rack and cabled to meet the configuration you want, an IBM SSR or IBM lab-based services conducts the initial installation and configuration by performing the following tasks:
1. Initialize the AE3 storage enclosure using a USB key and performing initial setup.
2. Connect a workstation to an AC3 control enclosure technician port.
3. Configure the IBM FlashSystem V9000 clustered system with a name and management IP address.
4. Use the web browser to go to the management IP address of the cluster, and follow the steps of the setup wizard in the management GUI to set up call home and remote support by using information from the customer-supplied worksheets, shown in Chapter 2, “Planning” on page 23.
4.1.2 First customer involvement
After the IBM SSR or IBM lab-based services completes the service setup process, you log in to the AE3 storage and AC3 control enclosures and complete the following tasks by using the customer setup wizard as described in 4.5, “Initial customer setup” on page 91. The following steps are an overview of the process:
1. Confirm Settings on AE3 storage enclosure
2. Connect to the AC3 Control Enclosure to run the installation wizard
3. Change the system password
4. Change the system name
5. Configure licensed functions
6. Set the date and time
7. Confirm the call home settings that the IBM SSR or IBM lab-based services entered
8. Customer Creates Storage Pool
9. Add the AE3 storage enclosure managed disks
4.2 IBM FlashSystem V9000 physical specifications
The IBM FlashSystem V9000 is installed in a standard 19-inch equipment rack. The IBM FlashSystem V9000 building block is 6U high and 19 inches wide. A standard data 42U 19-inch data center rack can be used to populate with the maximum IBM FlashSystem V9000 configuration to use up to 36U. For a description of physical dimensions, see 1.1.3, “Physical specifications” on page 6.
4.3 Installing the hardware
The IBM SSR is responsible for physically installing IBM FlashSystem V9000 components in the rack.
This process involves installing the two control enclosures and the storage enclosure. These three enclosures form a 6U building block. For a scalable building block, additional components, such as Fibre Channel switches and an Ethernet switch are also installed.
When installed, the components of the IBM FlashSystem V9000 appear as shown in Figure 4-1. Only an 8 or 16 Gbps Fibre Channel attachment can be used for direct attach.
Figure 4-1 View of the IBM FlashSystem V9000 front panel
4.4 Connecting the components
The AE3 storage enclosure and AC3 control enclosures can be connected to create a fixed building block or a scalable building block:
•The IBM SSR is responsible for connecting (cabling) the three enclosures in a fixed building block.
•Lab-based services is responsible for cabling the AC3 control enclosures, the AE3 storage enclosure, and the Fibre Channel switches and Ethernet switch in a scalable building block.
For interface protocol and connection tables, see 2.2.3, “Network cable connections” on page 35. A complete suggested cabling guide is in the installation section of the IBM FlashSystem V9000 in IBM Knowledge Center.
4.4.1 Connecting the components in a fixed building block
The IBM SSR is responsible for connecting the components of a fixed building block.
To create a fixed building block:
1. Create direct links between the AE3 storage enclosure and the two AC3 control enclosures.
2. Create a direct link between the control enclosures.
3. Connect the hosts or external storage to the AC3 control enclosures.
To improve performance and provide redundancy, both AC3 control enclosures are connected to both canisters in the AE3 storage enclosure.
Figure 4-2 illustrates the interface protocols and maximum number of connections supported for an IBM FlashSystem V9000 fixed building block for a five-host, 16 Gbps Fibre Channel configuration. There are also redundant cluster links between the two AC3 control enclosures.
Figure 4-2 Fixed building block protocols and connections for 16 FC Gbps configuration using AC3 control enclosures
Information about supported protocols and connections for IBM FlashSystem V9000 fixed and scalable building blocks is in For interface protocol and connection tables, see 2.2.3, “Network cable connections” on page 35. A complete suggested cabling guide is in the installation section of the IBM FlashSystem V9000 in IBM Knowledge Center.
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Note: For the fixed building block 16 Gbps configuration, you need two FC ports (AC3 to AC3) and six FC ports (AC3 to AE3). The remaining six FC ports can be used for host or external storage attachment.
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4.4.2 Connecting the components in a scalable building block
IBM lab-based services is responsible for cabling the building block components.
Cabling involves installing the network and storage data cables that are internal to the IBM FlashSystem V9000 scaled building blocks.
Figure 4-3 shows a conceptual view of a typical cabling example of one building block with an added AE3 storage enclosure.
Figure 4-3 One building block and one additional AE3 storage enclosure connection
The numbers in the figure have the following meanings:
1. Host and external storage connections
2. Redundant cluster links between the AC2 or AC3 control enclosures
3. AC2 or AC3 control enclosures
4. Fibre Channel connections to the AE3 storage enclosures
5. AE3 storage enclosures
Remember that one building block contains two AC3 control enclosures and one AE3 storage enclosure. Your final configuration can be up to four building blocks and four additional AE3 storage enclosures.
For internal Fibre Channel switches, a minimum of two switches are needed for redundancy purposes on a 16 Gbps configuration and four switches for an 8 Gbps configuration (for AC3 control enclosure only). Switches that IBM suggests can be used, or any other switches can be used with the relevant attention on the open access method that is used by the AC3 control enclosure to reach the AE3 storage enclosure.
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Note: When using customer SAN Switches, plan carefully to ensure that optimal performance is available to the V9000 internal communications.
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Host connections to the AC3 control enclosures can be these connections types:
•Direct/switched Fibre Channel connections (16 Gbps or 8 Gbps)
•Fibre Channel Over Ethernet or ISCSI (10 Gbps Ethernet links)
The rear view of the AC3 control enclosure is shown in Figure 4-4.
Figure 4-4 AC3 controller enclosure rear view
For more information about connecting components, see the following IBM Knowledge Center topics:
•Connecting the components in a fixed building block (IBM SSR task)
•Connecting the components in a scalable building block (IBM lab-based services task)
Comprehensive examples and configuration guidelines of the following two preferred methods for port utilization in an IBM FlashSystem V9000 scalable environment are in Appendix A, “Guidelines: Port utilization in an IBM FlashSystem V9000 scalable environment” on page 245:
•IBM FlashSystem V9000 port utilization for infrastructure savings
This method reduces the number of required customer Fibre Channel ports attached to the customer fabrics. This method provides high performance and low latency but performance might be port limited for certain configurations. Intra-cluster communication and AE3 storage traffic occur over the internal switches.
•IBM FlashSystem V9000 port utilization for performance
This method uses more customer switch ports to improve performance for certain configurations. Only ports designated for intra-cluster communication are attached to private internal switches. The private internal switches are optional and all ports can be attached to customer switches. By following the cabling guidelines in the appendix you can see performance improvements up to 40% for sequential reads and up to 80% for sequential writes.
4.4.3 Ethernet cabling
IBM lab-based services is responsible for cabling components to the Ethernet switch.
The internal connectivity Ethernet switch provides management connections for the IBM FlashSystem V9000.
Figure 4-5 shows a typical wiring diagram for cabling the components to the Ethernet switch.
Figure 4-5 Ethernet switch wiring diagram
Switch port usage depends on the speed:
•If two 16 Gbps FC switches are used rather than four 8 Gbps FC switches, only two of the four Ethernet connections for FC switches are needed.
•Redundant Ethernet management links for AC3 control enclosures are not necessary to protect them from management link and port failures. The AC3 control enclosures function as a pair in an I/O group, and, if a node failure occurs, the partner AC3 control enclosure in the I/O group (or another AC3 control enclosure in the cluster) takes over management of the I/O group or cluster.
4.4.4 Scaling from one to two, three, or four building blocks
IBM lab-based services is responsible for the configuration tasks that are involved in scaling from one scalable building block to two, three, or four scalable building blocks.
Before you begin
Be sure these actions are complete before you scale the environment:
•The building block components must be installed in the rack in the specified locations.
•The building block components must be cabled.
•The first scalable building block must be operational.
Procedure
Follow this procedure to add a new building block:
1. Power on the components for the new building blocks.
2. Log on to the management GUI of the existing system. The system recognizes that there are new candidate enclosures and displays a graphic that shows the new enclosures.
3. Place the cursor over the graphic of a new enclosure, and then click to run the wizard that adds the new enclosure to the system.
4. From the networking section of the GUI, add the management IP addresses for the new building blocks. For details, see 2.3.1, “Management IP addressing plan” on page 41.
More information about various interface setups is in Appendix A, “Guidelines: Port utilization in an IBM FlashSystem V9000 scalable environment” on page 245.
4.5 Initial customer setup
After the service setup of the new system is complete, you can use the management GUI to input the initial setup information. FlashSystem V9000 with AE3 Storage enclosures have 2 setups:
•AE3 storage enclosure configuration setup is performed primarily by the IBM SSR using information provided by the customer during the planning process. The customer must confirm this information has been entered correctly.
•AC3 control enclosure setup involves the IBM SSR initializing the system and the customer completing the installation wizard which.
Before you begin, be sure that you have the following information:
•The cluster management IP address of both system entered by the IBM SSR
•The IP address of a Network Time Protocol (NTP) server, for automated setting of date and time
•Licensed function information
•The Simple Mail Transfer Protocol (SMTP) server IP address
•Any email contacts you want to be added in the notification mails
4.5.1 FlashSystem V9000 AE3 Setup Confirmation
Complete the following steps to confirm that the setup of the system is correct for Notifications, Network, Security, System, Support, and GUI Preferences.
In the following procedure we’ll touch briefly on each of the items for the FlashSystem V9000 AE3 Storage Enclosure, detailed explanations of items can be found in the Redbooks publication Implementing IBM FlashSystem 900 Model AE3, SG24-8414.
Start by connecting to the Management Interface:
1. Open a supported browser and go to the following address:
http://<AE3_management_ip_address>
2. Login using User ID superuser and default password of passw0rd.
The AE3 dashboard displays, as shown in Figure 4-6. Notice on the left panel we’ve expanded the 1 Settings menu. We’ll step through each of the items.
Figure 4-6 FlashSystem V9000 AE3 Management Dashboard
Notifications
In this section, Call Home is reviewed using the Notification selection 2 in the setting section of the main menu shown in Figure 4-6. IBM cannot overstate the value of call home for storage devices in your environment. Simply put, call home ensures IBM can automatically open service tickets for your system. IBM uses advanced analytical based on this call home information to open proactive tickets to replace components before they fail. It is the best way to get optimal support for your device. Ensuring your call home contact information is accurate and testing the process is highly recommended.
Email
In the notifications panel shown in Figure 4-7 on page 93, review the call home settings.
1. Notice that 1 Email Users Email Address is blank. This means that although call home message errors are sent to IBM 2, the customer would not receive notifications of errors. Create an email user for notifications by putting the form into 3 Edit mode and adding an email address for the notifications.
Figure 4-7 Discovered no email notification to customer
2. Most customers want an email when errors are sent to IBM. This is easily corrected by adding the team alias as an email user, as shown in Figure 4-8.
Figure 4-8 Adding Customer email Notification and Saving
3. With the form in Edit mode (Figure 4-8), add the user to be notified as shown in 1. Leaving the default warning level selected generates additional email traffic, so most customers do not leave this selected. It is necessary to 2 Save the form and re-edit the form before you can test the connections.
4. With the form again in edit mode in Figure 4-9 notice how both Call Home and Email Users each have a Test button enabled. Make sure to test both of them (1 & 2). In the case of call home, a Support ticket is automatically opened, and the contact in this form receives a communication from IBM. Use Cancel 3 to close the form.
Figure 4-9 Testing both call home and email notification
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Note: Testing Call Home exercises the support process by ensuring that your system entitles with IBM support. Contact information is also validated, because support reaches out to the primary contact.
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SNMP
The SNMP panel is used to activate and download the MIB file to support SNMP, as shown in Figure 4-10. This is a post-install configuration usually set by the customer.
Figure 4-10 SNMP Setup Panel
Syslog
Syslog is a server used to receive log messages from systems. This is a post-install configuration performed by the customer, as shown in Figure 4-11.
Figure 4-11 Syslog Setup Panel
Network
Confirming the network configuration, shown in Figure 4-12, is important to ensure access to the system in the future.
Figure 4-12
This section describes the Management and Service IP addresses, it is important to confirm these are the correctly configured.
Management IP
Your FlashSystem V9000 AE3 storage enclosures is managed using the management IP address. This panel, shown in Figure 4-13, can be used to change it in the future.
Figure 4-13 Management IP address panel
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Note: It is important that you can reach the system on the Service IP addresses before the management IP address is changed.
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Service IP
Setting the Service IP addresses is important to the serviceability of your system. IBM advises you to set these to accessible addresses on the network with your Management IP, as shown in Figure 4-14. Confirm that these are correct for your environment.
Figure 4-14 Confirm Service IP Addresses are configured
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Note: The management IP address is the same as the configuration node. Either canister can be the configuration node.
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Security
The security selections in Figure 4-15 are all post-install customer configurations. You can skip this for your initial installation, however the tabs are listed here with brief explanations.
Figure 4-15 Security Pane Selection
Remote Authentication
Remote authentication is selecting the type of LDAP server to be used. This is normally configured by the customer after the install. Figure 4-16 shows the dialog that appears after the configure remote authentication option is selected.
Figure 4-16 Configure Remote Authentication
Encryption
Encryption is available for customers that purchased a license, this is shown in Figure 4-17. Both USB-based and SKLM-based encryption are available with the FlashSystem V9000 AE3 storage enclosure.
Figure 4-17 Enable Encryption Panel
Secure Communications
To ensure that the certificate and public ID of the system are valid and secure, each system has a digital Secure Sockets Layer (SSL) certificate. This is accomplished using setting in below in Figure 4-18. This is a customer configuration task usually done after the system is installed.
Figure 4-18 Updating SSL Certificates
System
The System menu in Figure 4-19 allows you to confirm the time zone and network Network Time Protocol (NTP) Settings.
Figure 4-19 Select the System Menu
Date and Time
Figure 4-20 shows the window that enables you to verify the 1 Time Zone and 2 Set Date and Time or Set NTP IP Server IP Address options are set correctly.
Figure 4-20 Ensure that the date and time are correctly set
Update System
Code currency is managed using the update system tab shown in Figure 4-21. If there is a later version indicated on this panel you should review the release notes on IBM Fix Central to plan an upgrade if appropriate.
Figure 4-21 Confirm that you are at the current code release
Support
The Support Panel should be reviewed to ensure that Support assistance has been configured correctly for your companies policies, as shown in Figure 4-22.
Figure 4-22 Support Menu Selection
Support Assistance window
To set up support, complete the following steps:
1. In Figure 4-23, you select 1 Setup Remote Assistance and the Setup Window 2 with the default settings displays.
Figure 4-23 Set Up Support Assistance
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Note: Customer Firewalls must allow connection for SSH to IBM IP Addresses, as shown in Figure 4-23.
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2. The Wizard continues in Figure 4-24 on page 101 allowing selection of how IBM will be allowed to work with this system. The most common selection is At Any Time. On System Error is another popular setting. These connections allow IBM timely access to collect logs. On Permission only requires the customer to open the connect when required.
Figure 4-24 Access Settings
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Note: IBM always reaches out to the primary contact for permission to collect logs; this is standard practice.
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3. The wizard completes with the ability to set an access code, as shown in Figure 4-25. Selecting Finish completes the wizard without the access code.
Figure 4-25 Optional Access Code can be Set
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Note: Setting an access code requires that the primary contact for the system be available to provide the access code when required.
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Support Package
Support package, shown in Figure 4-26, is used when the IBM Support Team needs the customer to collect logs. This is not part of the initial customer setup, and is normally done in response to a support ticket.
Figure 4-26 Generate a Support Package
Open PMR
The Open PMR capability is used to open a Problem Management Record (PMR) for the current system. Shown in Figure 4-27, a sample PMR is created to illustrate the capability.
Figure 4-27 Opening a PMR from the AE3 Storage Enclosure GUI
GUI Preferences
GUI Preferences allows customizing of the GUI welcome screen and general characteristics of the GUI. The menu in Figure 4-28 brings up the panel.
Figure 4-28 Select GUI Preferences
Login Message
Use the Login Message capability to customize the system welcome screen for the GUI and CLI, as shown in Figure 4-29.
Figure 4-29 Customizing the Login Message
General
The General GUI setting scan be found in Figure 4-30. These settings enable you to set a time-out value for the GUI to lock out. Another customizing option is the access to IBM Knowledge Center documentation.
Figure 4-30 Customize GUI properties
This concludes verifying the FlashSystem V9000 AE3 storage enclosure settings. In the following section the AC3 control enclosure setup wizard is run.
4.5.2 FlashSystem V9000 AC3 Setup Wizard
License agreement and password change
This section explains how to start the customer setup wizard.
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Tips: Next, you need the cluster management IP address (<management_ip_address>) that the IBM SSR entered for the AC3 Control Enclosure and AE3 Storage Enclosure
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Complete the following steps:
1. Open a supported browser and go to the following address:
http://<AC3_management_ip_address>
IBM SSRs will provide login information when their portion of the installation is completed, as shown in Figure 4-31.
Figure 4-31 SSR customer information screen
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Note: IBM FlashSystem V9000 uses a self-signed certificate, which in some browsers causes a warning message, such as The certificate is only valid for xxxx. Adding an exception will avoid this warning in the future.
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2. To continue, select Next. On the V9000 Welcome screen:
a. Read the IBM FlashSystem V9000 product license.
b. Select I agree with the terms in the license agreement.
Figure 4-32 License agreement page
Figure 4-33 Superuser password change panel
Set System Name
Confirm that the system name set by the SSR is correct, as shown in Figure 4-34.
Figure 4-34 Set System Name
Setup Licensed Functions
This window enables you to set the values for licensed functions, as shown in Figure 4-35.
Figure 4-35 Set up Licensed Functions
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Note: If you do not have the compression acceleration feature installed, the license value for encryption will be zero.
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In Figure 4-36, the license limits entered previously are configured on the system.
Figure 4-36 Licensed commands being executed
Date and Time
You might need the IP address of an NTP server (if the IBM technician has not yet entered it). In Figure 4-37, the screen for entering the NTP server is shown.
Figure 4-37 Setup the NTP Server and time zone
System Location
System location is used in conjunction with call home information to determine the physical location of the system when IBM Technicians are dispatched. In Figure 4-38, confirm that the System Location information is correct.
Figure 4-38 Confirm the system location information
Contact
Confirm the contact information is correct for your environment in Figure 4-39. When IBM receives call home messages, this information is part of the support ticket that is automatically generated. No other information is used by the support center to contact your support team, so be sure that the information on this form is accurate.
Figure 4-39 Enter accurate contact information
Email Servers
To setup the Email servers you will need IP address of the Simple Mail Transfer Protocol (SMTP) server as shown in Figure 4-40. Select the Ping button 1 to test the communication path to the SMTP Gateway.
Figure 4-40 Enter your SMTP Gateway
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Note: If the IBM SSR entered this information in the initial GUI, these values are displayed and you can verify them.
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Support Assistance
Support Assistance enables support personnel to access the system to complete troubleshooting and maintenance tasks. You can configure either local support assistance, where support personnel visit your site to fix problems with the system, or remote support assistance. Both local and remote support assistance use secure connections to protect data exchange between the IBM support center and system. Shown in Figure 4-41 are the Support Assistance options.
Figure 4-41 Support assistance setup panel
Remote Support Proxy
The Support Assistance panel is presented. Choose which option suits your environment best, as shown in Figure 4-42. The Remote Support Proxy works best for customers with multiple systems, this feature is also covered in the planning chapter 2.3.4, “Remote Support Assistance” on page 45.
Figure 4-42 Confirm the Support assistant options
Access Settings
Next define how IBM support can access the system. At Any Time means the connection is available for IBM to collect logs as required. On permission Only means the customer will need to establish the connection before service takes place, as shown in Figure 4-43.
Figure 4-43 Confirm remote support access settings
In Figure 4-44, the results of the remote support configuration are displayed.
Figure 4-44 Details of the remote support assistance configuration are shown.
Summary
The summary display in Figure 4-45 shows the current configuration of the system.
Figure 4-45 Summary display
The last display is confirming that the customer has completed the wizard as shown in Figure 4-46.
Figure 4-46 Completion of the easy setup wizard
4.5.3 Configure FlashSystem V9000 AC3 Controllers with AE3 Storage
The configuration of the AC3 controllers is completed by recognizing the storage virtualized by the AE3 storage enclosure. AE3 is recognized as external storage, previously the AE2 enclosure was treated as internal (managed) storage so the configuration process has changed. In the following sections we illustrate creating a storage pool, discovering the AE3 storage, and assigning the storage to the pool.
Creating the Storage Pool and adding AE3 storage
All storage resources that are under the system control are managed using storage pools. Storage pools aggregate internal and external capacity and provide the containers in which volumes can be created.
1. Begin by selecting the panel that you want to use to create the pool, as shown in Figure 4-47.
Figure 4-47 Select the MDisks by Pools from the Navigation Menu
2. The main display changes to the MDisk by Pool display similar to Figure 4-48. In this example the system already recognized the storage mapped as indicated by 1 and 2. Create the pool by selecting Create Pool 3.
Figure 4-48 Create the Pool
3. Provide a meaningful name for the pool. In this case, we used BB1_Pool 1 to represent building block 1 pool 1. The extent size defaults to 1 GB and leave this default. For more information about extents see Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933. In Figure 4-49 the pool is created.
Figure 4-49 Create a Pool to manage the AE3 storage
Figure 4-50 shows the details of the command run to create the pool.
Figure 4-50 Command output from pool creation
4. On return to the MDisk by Pool display you may see this reminder in Figure 4-51 stating that the pool is empty, and needs to have storage added.
Figure 4-51 Reminder to add storage to the pool
5. In our example the AC3 control enclosure recognized the storage from the AE3, so we can simply add the storage to the pools, as shown in Figure 4-52.
Figure 4-52 Select add storage
6. This will bring up the unused storage, as shown in Figure 4-53. Select All MDisks from the pull-down menu, which makes all of the MDisks part of the storage pool.
Figure 4-53 Select all MDisks
7. There is also the ability to classify the tier of storage being added to the pool. The AE3 is considered Tier 0 Flash storage. Ensure that Tier 0 Flash is selected, as shown in Figure 4-54. Select Assign to complete the task.
Figure 4-54 Select Tier 0 Flash and Assign storage to the pool
8. In Figure 4-55 the commands run are shown, including changing the storage tier and adding the MDisks to the pool. Click Close.
Figure 4-55 Command output from adding the AE3 storage to the pool
Returning to the MDisks by Pools display, shown in Figure 4-56, we can see the storage is available for allocation.
Figure 4-56 Pool is now available for allocation
The initial configuration of the system is complete, next steps are to allocate volumes from the extents in this storage pool. The IBM Redbooks publication, Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933, provides complete details about how this works.
Discovering the AE3 Storage
When you create or remove Logical Units (LU) on an external storage system, the change is not always automatically detected. If that is the case select Discover Storage for the system to rescan the Fibre Channel. The rescan process discovers any new MDisks that were added to the system and rebalances MDisk access across the available ports. It also detects any loss of availability of the controller ports.
Figure 4-57 shows the menu selection from the MDisks by Pools example in the previous section. Select Actions → Discover Storage to initiate a discovery for new LUs available from attached storage.
Figure 4-57 Discover storage option
Any unassigned storage is reflected on the panel after about a minute. Figure 4-58 shows the panel with unassigned storage present.
Figure 4-58 Unassigned Mdisks Displayed
When storage is visible, it can be assigned to the pool as previously described in 4.5.3, “Configure FlashSystem V9000 AC3 Controllers with AE3 Storage” on page 113.
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