Scalability
This chapter describes the scaling capabilities of IBM FlashSystem V9000:
•Scale out for capacity
•Scale up for performance
A single IBM FlashSystem V9000 storage building block consists of two IBM FlashSystem V9000 control enclosures (AC3) and one IBM FlashSystem V9000 storage enclosure (AE3). Additionally, the AC3 control enclosures can be configured with SAS-enclosures for capacity expansion.
The examples of scaling in this chapter show how to add control enclosures, a storage enclosure, and an expansion enclosure, and how to configure scaled systems.
This chapter demonstrates scaling out with additional building blocks and adding one additional storage enclosure. This setup consists of two IBM FlashSystem V9000 building blocks configured as one IBM FlashSystem V9000 cluster.
This chapter includes the following topics:
3.1 Overview
IBM FlashSystem V9000 has a scalable architecture that enables flash capacity to be added (scaled up) to support multiple applications. The virtualized system can also be expanded (scaled out) to support higher IOPS and bandwidth, or the solution can be simultaneously scaled up and out to improve capacity, IOPS, and bandwidth while maintaining MicroLatency. As a result, your organization can gain a competitive advantage through MicroLatency response times and a more efficient storage environment. IBM FlashSystem V9000 has the following scalability features per building block:
•Slots for up to 12 hot-swappable flash memory modules (3.6 TB, 8.5 TB, or 18 TB modules)
•Configurable 14.4 - 180 TB of usable capacity for increased flexibility per storage enclosure
•Up to 20 standard expansion enclosures per controller pair (up to 80 total) with up to 9.6 PB raw capacity using NL-SAS HDDs or 29.4 PB raw capacity using SSDs
•Up to 8 high-density (HD) expansion enclosures per controller pair (up to 32 total) with up to 29.4 PB raw capacity using NL-SAS HDDs or 32 PB raw capacity using SSDs
•IBM FlashSystem V9000 has the following flexible scalability configuration options:
 – Scale up: Add more flash capacity
 – Scale up: Add more SAS capacity
 – Scale out: Expand virtualized system
 – Scale up and out: Add more flash and SAS capacity and expand virtualized system
Four types of storage enclosures are discussed in this chapter:
•IBM FlashSystem V9000 storage enclosure (AE3)
 – Native IBM FlashSystem V9000 storage
 – Fibre channel attached
 – Based on MicroLatency Modules (flash modules)
•IBM FlashSystem V9000 expansion enclosure (12F, 24F, or 92F)
 – SAS drive based either SSD or nearline drives
 – SAS attached
 – Used for capacity expansion
Figure 3-1 on page 63 shows all the types of building blocks and expansion enclosures available on the IBM FlashSystem V9000.
 
Figure 3-1 Types of building blocks and expansion enclosures available on the IBM FlashSystem V9000
3.2 Building block for scaling
A single IBM FlashSystem V9000 storage platform consists of two IBM FlashSystem V9000 control enclosures (AC3) directly cabled to one IBM FlashSystem V9000 storage enclosure (AE3), representing a fixed building block.
For balanced increase of performance and scale, up to four IBM FlashSystem V9000 building blocks can be clustered into a single storage system, multiplying performance and capacity with each addition. The scalable building blocks require connectivity through Fibre Channel switches. The scalable building block configurations also support the addition of up to four individual IBM FlashSystem V9000 storage enclosures to be added to the storage system.
If 720 TB of usable capacity from four building blocks is not enough capacity, up to four extra AE3 storage enclosures can then be added. In total, an IBM FlashSystem V9000 storage system can contain a maximum of eight IBM FlashSystem V9000 storage enclosures, offering a potential usable storage capacity of 1.44 PB, and up to 1.76 PB maximum effective capacity is available with in-line hardware compression on the AE3 storage enclosures.
Real-time Compression is available as a software feature, assisted by hardware accelerator cards in the IBM FlashSystem V9000 control enclosures. Real-time Compression enables users to deploy Real-time Compression where it is applicable.
Figure 3-2 on page 64 shows a summary of potential capacities for one IBM FlashSystem V9000 building block.
The scalable building blocks require connectivity through Fibre Channel switches.
A fixed building block uses direct internal connections without any switches. Contact your IBM representative if you want to scale up or scale out from a fixed building block.
Figure 3-2 Potential capacities for one IBM FlashSystem V9000 building block
Figure 3-3 illustrates the scalable capacity of IBM FlashSystem V9000. It also shows that extra AE3 storage enclosures can be added to a single building block, and also to two, three, or four building blocks.
Figure 3-3 Scalable capacity of IBM FlashSystem V9000
3.2.1 Scaling concepts
IBM FlashSystem V9000 provides three scaling concepts:
•Scale up. Add more flash capacity:
 – Add up to four extra IBM FlashSystem V9000 storage enclosures.
•Scale up. Add more SAS capacity:
 – Add up to 80 IBM FlashSystem V9000 model 12F or 24F expansion enclosures.
 – Add up to 32 IBM FlashSystem V9000 model 92F expansion enclosures.
•Scale out. Expand virtualized system:
 – Add up to three IBM FlashSystem V9000 building blocks for extra performance and capacity.
The first scalable IBM FlashSystem V9000 building block consists of two IBM FlashSystem V9000 control enclosures (AC3), one IBM FlashSystem V9000 storage enclosure (AE3), representing a building block and two Fibre Channel switches for the internal 16 Gbps FC cabling. This building block with switches is called scalable building block.
 
Note: Internal FC speed for the AE3 storage enclosures can be either 16 Gbps or 8 Gbps. For the AC3 control enclosures only 16 Gbps is supported.
IBM FlashSystem V9000 can have up to four extra storage enclosures and scale out to four building blocks as shown in Figure 3-3. The maximum configuration has eight IBM FlashSystem V9000 control enclosures, and eight IBM FlashSystem V9000 storage enclosures.
3.2.2 Scale up for capacity
Scale up for capacity is adding an IBM FlashSystem V9000 AE3 storage enclosure to an existing building block. This storage enclosure will then be managed by its own GUI or CLI as the existing AE3 storage enclosures. This IBM FlashSystem V9000 might be a scalable building block or already be a scaled IBM FlashSystem V9000. Adding other storage to an IBM FlashSystem V9000, such as IBM Storwize V7000 or IBM FlashSystem 900, is not considered as IBM FlashSystem V9000 scale up, because it is not managed by the IBM FlashSystem V9000 and it is attached using the external fabric and not the internal switches.
To add an extra IBM FlashSystem V9000 AE3 storage enclosure, see section 3.3, “Adding an IBM FlashSystem V9000 AE3 storage enclosure” on page 71 To add an extra IBM FlashSystem V9000 expansion enclosure, see 3.5, “Adding an IBM FlashSystem V9000 expansion enclosure” on page 78.
3.2.3 Scale out for performance
Scaling out for performance is equivalent to adding a second, third, or fourth building block to a scalable building block. This additional building block is managed by the same GUI or CLI as the existing IBM FlashSystem V9000. This existing IBM FlashSystem V9000 might be a single scalable building block, so that the switches are already in place, or already be a scaled IBM FlashSystem V9000 of up to three building blocks.
Scale out always adds two controller nodes and one storage enclosure per building block to an existing IBM FlashSystem V9000.
To add another IBM FlashSystem V9000 building block, see 3.4, “Adding a second IBM FlashSystem V9000 building block” on page 78.
Table 3-1 summarizes the minimum and maximum capacity for scalable building blocks, including the addition of AE3 storage enclosures.
Table 3-1 IBM FlashSystem V9000, scalable building blocks including additional storage enclosures
Scalable building blocks (BB)
Minimum usable capacity (TB)
Maximum usable capacity (TB)
Maximum effective capacity (TB) with Inline HW Compression
1 BB
014.4
0180
0219
1 BB + 1 AE3
028.8
0360
0438
1 BB + 2 AE3
043.2
0540
0657
1 BB + 3 AE3
057.6
0720
0876
1 BB + 4 AE3
072.0
0900
1095
2 BB
028.8
0360
0438
2 BB + 1 AE3
043.2
0540
0657
2 BB + 2 AE3
057.6
0720
0876
2 BB + 3 AE3
072.0
0900
1095
2 BB + 4 AE3
086.4
1080
1314
3 BB
043.2
0540
0657
3 BB + 1 AE3
057.6
0720
0876
3 BB + 2 AE3
072.0
0900
1095
3 BB + 3 AE3
086.4
1080
1314
3 BB + 4 AE3
100.8
1260
1533
4 BB
057.6
0720
0876
4 BB + 1 AE3
072.0
0900
1095
4 BB + 2 AE3
086.4
1080
1314
4 BB + 3 AE3
100.8
1260
1533
4 BB + 4 AE3
116.0
1440
1752
PCIe expansion ports
Seven Peripheral Component Interconnect Express (PCIe) slots are available for port expansions in the IBM FlashSystem V9000 AC3 control enclosures.
Table 3-2 shows the host port count per building block configuration (1, 2, 3, or up to 4 building blocks).
Table 3-2 Host port count per building blocks
Building blocks
16 Gbps FC
(host and storage)
10 Gbps iSCSI
(host and storage)
10 Gbps FCoE
(host)
1
032
08
08
2
064
16
16
3
096
24
24
4
128
32
32
Expansion enclosures
IBM FlashSystem V9000 Software V8.1 introduces support for the addition of expansion enclosures also called tiered solution Models 9846/8-12F, 9846/8-24F and 9846/8-24F, which are available for the AC3 control enclosures.
IBM FlashSystem V9000 Small Form Factor (SFF) expansion enclosure model 24F offers new tiering options with low cost solid-state drives (SSDs). Each SFF expansion enclosure supports up to 24 2.5-inch low cost SSD drives.
Up to 20 expansion enclosures model 12F or 24F are supported per IBM FlashSystem V9000 building block, providing up to 480 drives with expansion enclosure model 24F (SFF) and up to 240 drives with expansion model 12F (LFF) for up to 2.4 PB of raw NL-SAS capacity in each building block. With four building blocks 9.6 PB of raw NL-SAS capacity is supported.
The IBM FlashSystem V9000 High-density (HD) Large Form Factor (LFF) Expansion Enclosure Model 92F supports up to 92 drives per enclosure, with a mixture of rotating disks and SSD drives in various capacities.
The HD Expansion Enclosure Model 92F provides additional configuration options. Up to eight HD expansion enclosures model 92F are supported per IBM FlashSystem V9000 building block, providing up to 736 drives for up to 7.3 PB of raw NL-SAS capacity or 11.3 PB SSD capacity in each building block. With four building blocks a maximum of 32 HD expansion enclosures model 92F can be attached giving a maximum 29.4 PB of raw NL-SAS capacity and 32 PB of raw SSD capacity. For information about the allowed intermix of expansion enclosures, see 2.2.4, “SAS expansion enclosures” on page 39.
 
Figure 3-4 shows the maximum possible configuration with a single building block using a combination of native IBM FlashSystem V9000 storage enclosures and expansion enclosures.
Figure 3-4 Maximum configuration with a single scalable building block using model 12F and 24F expansion enclosures
Table 3-3 shows the maximum capacities for such a configuration.
Table 3-3 IBM FlashSystem V9000 maximum capacities
 
Model 12F
10TB NL-SAS
Model 24F 15.36TB SSD
Model 92F
10TB NL-SAS
Model 92F 15.36TB SSD
1 building block
(8 x 92F)
 
 
07.3 PB
11.3 PB
4 building blocks (32 x 92F)
 
 
29.4 PB
32 PB1
1 building block
(20 x 12F or 24F)
2.4 PB
07.3 PB
 
 
4 building blocks (80 x 12F or 24F)
9.6 PB
29.4 PB
 
 
1 IBM FlashSystem V9000 Version 7.7.1 has a maximum manageable capacity of 32 PB.
High-density (HD) solid-state drives (SSDs)
High-density SSDs allow applications to scale and achieve high performance while maintaining traditional reliability and endurance levels. 1.92 TB, 3.84 TB, 7.68 TB, and 15.36 TB SAS 2.5-inch SSD options are available for IBM FlashSystem V9000 SFF expansion enclosure model 24F for up to 7.3 PB raw SSD capacity in each building block for a maximum 29.4 PB with four building blocks.
With expansion enclosure model 92F 7.68 TB and 15.36 TB SSD drives are available for up to 11.3 PB raw SSD capacity in each building block for a maximum 32 PB with four building blocks.
High capacity nearline drives
High capacity nearline drives enables high value tiered storage with hot data stored in flash and warm data on lower cost NL-SAS HDDs all managed by IBM Easy Tier. The 10 TB SAS 3.5-inch nearline drives are available for IBM FlashSystem V9000 LFF expansion enclosure Model 12F and for Model 92F. Maximum capacities with four building blocks using expansion enclosure Model 12F is 9.6 PB raw nearline capacity and 29.4 PB using model 92F.
RAID types
RAID5 with standby hot spare is the only available RAID option for IBM FlashSystem V9000 native flash storage expansion. However, the additional SAS attached expansion enclosures can be configured with various RAID options. Distributed RAID (DRAID 5 and DRAID 6), which offers improved RAID rebuild times, is preferred for expansion enclosures.
3.2.4 SAS expansion enclosures intermix
IBM FlashSystem V9000 control enclosures with the SAS enclosure attach adapters support up to two SAS chains of expansion enclosures. The SAS chains have limits depending on the number of standard and dense expansion enclosures. Table 3-4 shows the allowed intermix of expansion enclosures per SAS chain.
Table 3-4 Number of expansion enclosures allowed per SAS chain; two chains per building block
Number of expansion
enclosures
Config 1
Config 2
Config 3
Config 4
Config 5
1
Standard
Dense
Dense
Dense
Dense
2
Standard
Standard
Dense
Dense
Dense
3
Standard
Standard
Standard
Dense
Dense
4
Standard
Standard
Standard
Standard
Dense
5
Standard
Standard
Standard
Standard
 
6
Standard
Standard
Standard
 
 
7
Standard
Standard
Standard
 
 
8
Standard
Standard
 
 
 
9
Standard
 
 
 
 
10
Standard
 
 
 
 
Note: Standard refers to either Model 12F LFF or Model 24F SFF expansion enclosures. Dense refers to the Model 92F HD expansion enclosure.
Table 3-5 shows the allowed intermix of expansion enclosures per building block (control enclosure pair). Any cell in the table is valid but you must balance the enclosures across both chains up to the maximum limits specified per chain.
Table 3-5 Number of expansion enclosure types that can be intermixed on one building block; two SAS chains
Number
of expansion
enclosures
Config 1
Config 2
Config 3
Config 4
Config 5
1
Standard
Dense
Dense
Dense
Dense
2
Standard
Standard
Dense
Dense
Dense
3
Standard
Standard
Standard
Dense
Dense
4
Standard
Standard
Standard
Standard
Dense
5
Standard
Standard
Standard
Standard
Dense
6
Standard
Standard
Standard
Dense
Dense
7
Standard
Standard
Standard
Dense
Dense
8
Standard
Standard
Dense
Dense
Dense
9
Standard
Dense
Dense
Standard
 
10
Standard
Standard
Standard
Standard
 
11
Standard
Standard
Standard
 
 
12
Standard
Standard
Standard
 
 
13
Standard
Standard
Standard
 
 
14
Standard
Standard
Standard
 
 
15
Standard
Standard
 
 
 
16
Standard
Standard
 
 
 
17
Standard
 
 
Legend:
18
Standard
 
 
Chain 1
19
Standard
 
 
Chain 2
20
Standard
 
 
 
 
Note: Standard refers to either Model 12F LFF or Model 24F SFF expansion enclosures. Dense refers to the Model 92F HD expansion enclosure.
 
Note: To support SAS attached expansion enclosures, an AH13 - SAS Enclosure Attach adapter card must be installed in expansion slot 2 of each AC3 control enclosure in the building block.
3.3 Adding an IBM FlashSystem V9000 AE3 storage enclosure
This section gives an example of adding an extra IBM FlashSystem V9000 AE3 storage enclosure to a single scalable building block. Before scaling a building block, be sure that the FC cabling is set up and zoning on the switches has been implemented.
 
Note: The Fibre Channel internal connection switches are ordered together with the first IBM FlashSystem V9000 scalable building block. You can also supply your own Fibre Channel switches and cables, if they are supported by IBM. See the list of supported Fibre Channel switches at the SSIC web page.
Figure 3-5 shows a scalable building block before adding an extra IBM FlashSystem V9000 storage enclosure. Because the AE3 storage enclosure is now a virtualized enclosure, it does not show up on the AC3 GUI, and has its own GUI, as shown in Figure 3-6 on page 72.
Figure 3-5 Single scalable building block showing the AC3 control enclosures
Figure 3-6 shows a single scalable building block for the AE3 storage enclosure.
Figure 3-6 Single scalable building block showing the AE3 storage enclosure
 
 
Note: The V9000 AC3 and AE3 enclosures now have a separate GUI for each element. The figures above show the pair of AC3’s in one GUI and the AE3 in the other. The new additional AE3 being added will also have its own GUI as well.
To add an additional IBM FlashSystem V9000 AE3 storage enclosure to the existing AC3 cluster, the SSR will complete the following steps:
•Physically position and install the additional AE3 storage enclosure into the IBM FlashSystem V9000 rack.
•Initialize the V9000 AE3 using the USB initialization process and start the AE3 in the IBM FlashSystemV9000 GUI as shown in Figure 3-6. For further information see chapter Chapter 4, “Installation and configuration” on page 83.
•Create eight volumes on the AE3, using up all the available capacity of the storage enclosure. These volumes will be used by the V9000 AC3 control enclosures when discovering the volumes later in the initialization process.
Using eight volumes enables you to use a part of the AE3 storage enclosure in an EasyTier pool. See the Redbooks publication Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933 for details about discovering these volumes and how to use them.
The Lab Services or customer team can then plug the FC cables from the AE3 to the switches and verify that the V9000 AC3 cluster is able to see the new AE3 enclosure.
The following screens show how to add this new AE3 storage enclosure to the existing AC3 cluster.
Figure 3-7 shows the main dashboard GUI Page for the V9000 AC3.
Figure 3-7 Dashboard page of the V9000 AC3 GUI
To add the AE3, complete the following steps:
1. From this screen shown in Figure 3-7, select the Volumes → Volumes by Pool option from the left hand menu. The new screen shown in Figure 3-8 displays, and the AE3 should show tn the available storage list. If it does not, then select the “Discover Storage” drop down to start this process.
Figure 3-8 Discover Storage menu item
2. When the AE3 MDisks are visible on the MDisks by Pools screen, as shown in Figure 3-9, select the Create Pool option.
Figure 3-9 MDisk’s by Pools screen
3. Click the Create Pool button using a name of your choice, as shown in Figure 3-9. When the Create Pool operation is running you see the display shown in Figure 3-10.
Figure 3-10 Create Pool operation
4. When the pool has been successfully created, you see the message shown in Figure 3-11. This informs you that you are required to Add Storage to the pool before you can create volumes.
Figure 3-11 Add Storage message
5. Add storage to the pool you just created by clicking the Add Storage button on the right, as shown in Figure 3-11. You can also see a small icon at the bottom of the page in Figure 3-12 that shows the MDisks that are available to select in the next few screens, when creating this storage.
Figure 3-12 Add Storage button
6. Select the External option for the storage assignment and the controller 0 in the menu shown in Figure 3-13.
7. The next menu is to select which MDisks you want the storage to reside on. Select the all checkbox to include all of the MDisks from the menu, as shown in Figure 3-13. This selects all of the 8 available MDisks.
Figure 3-13 MDisk selection
8. Move to the next drop down to select the EastTier tier level. For V9000 AE3 enclosures, this is Tier 0 Flash, as shown in Figure 3-14 on page 77.
Figure 3-14 EasyTier level selection
9. After selecting the Storage system, MDisks, and Tier attributes for the storage, click the Assign button on the right hand side to start the process running. You will see the progress as shown in Figure 3-15.
Figure 3-15 Assign MDisk to pool progress
10. Click the Close button to close this window once you see the “Task Completed” message.
11. The screen shown in Figure 3-16 shows the pool “BB_Pool” now has storage assigned from the 8 MDisks that were previously selected, and is now ready to add volumes as required.
Figure 3-16 Pool storage assigned
 
Important: Before deciding whether to create a single or multiple storage pools, carefully evaluate which option best fits your solution needs, considering data availability and recovery management.
3.4 Adding a second IBM FlashSystem V9000 building block
This section discusses adding an extra IBM FlashSystem V9000 AC3-based building block to a single IBM FlashSystem V9000 AC3-based scalable building block.
For instructions about how to add a second IBM FlashSystem V9000 AC3-based building block to the first building block, see Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933.
3.5 Adding an IBM FlashSystem V9000 expansion enclosure
This section discusses adding an IBM FlashSystem V9000 expansion enclosure (12F, 24F or 92F) to a scalable or fixed building block. The expansion enclosure is added to a building block which has AC3 controller nodes.
For instructions about how to add an expansion enclosure to the IBM FlashSystem V9000 AC3-based building block, see Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933.
3.6 Planning
For more information about planning, see the following areas of this book:
•Chapter 2, “Planning” on page 23 describes details for planning the set up of a scaled IBM FlashSystem V9000.
•Appendix A, “Guidelines: Port utilization in an IBM FlashSystem V9000 scalable environment” on page 245 provides examples and guidelines for configuring port utilization and zoning to optimize performance and properly isolate the types of Fibre Channel traffic.
Guidelines are provided for two suggested methods of port utilization in an IBM FlashSystem V9000 scalable environment, dependent on customer requirements:
 – IBM FlashSystem V9000 port utilization for infrastructure savings
This method reduces the number of required Fibre Channel ports attached to the customer’s 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 that are 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.
3.7 Installing
Chapter 4, “Installation and configuration” on page 83 includes details of how to install and configure IBM FlashSystem V9000. It describes the tasks that are completed by the IBM Service Support Representative or IBM lab-based services to set up the system and the follow-on task done by the customer.
3.8 Operations
The IBM FlashSystem V9000 GUI is the focal point for operating the system. However as the IBM FlashSystem V9000 AC3 and AE3 have separate GUI’s for control of each of the elements, the majority of the operations for volumes and hosts manipulations are very similar to the IBM SVC Volume Controller.
For information about host and volume creation, see chapters 7 and 8 in the Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933.
3.9 Concurrent code load in a scaled-out system
This section demonstrates the IBM FlashSystem V9000 software update. Before you start a system update, be sure that the system has no problems that might interfere with a successful update. When the system uses HyperSwap volumes, make sure that all HyperSwap relationships have a status of Online by running the lsrcrelationship command or by using the GUI. Hosts must be configured with multipathing between the nodes of the accessing I/O group or groups when using HyperSwap.
 
Note: The software release notes contain the current information about the update.
This section includes a brief description of the update on an IBM FlashSystem V9000 scaled out system.
Figure 3-17 shows the System view of an IBM FlashSystem V9000 full scaled-out cluster using four building blocks and four additional IBM FlashSystem V9000 storage enclosures (in total, eight controller nodes and eight storage enclosures).
Figure 3-17 Full scaled-out and scaled-up IBM FlashSystem V9000
IBM FlashSystem V9000 AC3 update consists of three automated steps:
a. Update of one controller node per I/O group, one controller at a time.
b. Pause for approximately 30 minutes for host path discovery; hosts have to reconnect to the updated controller nodes.
c. Update of the other controller nodes of an I/O group, one controller at a time.
The update takes about 2.5 hours for a cluster with one building block. You can add 10 - 15 minutes per additional node.
 
Note: The IBM FlashSystem V9000 AE3 storage enclosures do not get upgraded by this process. They have to be upgraded as a stand-alone unit. See the upgrade section in Implementing IBM FlashSystem 900 Model AE3, SG24-8414.
To upgrade the IBM FlashSystem V9000 AC3 control enclosures complete the following initial steps:
1. To start the concurrent code load (CCL), From the main dashboard screen click Settings → System → Update System. You are presented the screen shown in Figure 3-18.
Figure 3-18 Update system
2. We now have two options as follows:
 – Test Only: this runs only the code upgrade test utility, but does not upgrade the V9000 code. This is useful if you want to check out the machine to see if it is capable of a code upgrade. It is totally concurrent and only does some checking and does not proceed with the code upgrade.
 – Test & Update: this runs the test code upgrade test utility, and if it passes, then proceeds to upgrade the code.
3. Click the Test & Update button.
4. The Update System wizard opens (Figure 3-19). Provide a name for the test utility and the update package. Use the folder buttons to select the correct file names and click Update.
Figure 3-19 Update system file selection
As the upgrade progresses, you are presented with the screen show in Figure 3-20 where the overall progress bar is updated periodically, giving the most current status of the upgrade.
Figure 3-20 Overall progress and status bar
The full process for the code upgrade can be found in the Upgrading the System section in the Redbooks publication Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.1, SG24-7933.
When completed, all of the IBM FlashSystem V9000 controller nodes are updated to the current software level.
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