IBM DS8800 Storage System
As an easy-to-deploy, nondisruptive addition to DS8880, this flash enclosure puts optimized flash storage capacity within easy reach of both new and legacy deployments of DS8880 storage infrastructures.
Designed to deliver greater than “six nines” (99.9999 percent) availability, DS8880 is an enterprise-class storage system that is ideally suited to addressing heavy workload requirements. IBM brings together the latest in high-performance flash storage with the proven reliability and extreme high availability of IBM enterprise-class storage solutions. Organizations can access business-transforming insights instantly, keep e-commerce sites up and running, and do it all confidently with a proven, highly resilient system.
The family of IBM Enterprise Disk Systems offers a broad range of scalable solutions to address various enterprise storage needs. By using leading IBM technology, the enterprise disk systems provide choice in function, performance, and resiliency.
Industry-leading IBM flash solutions reach across the IBM storage portfolio, and now include IBM High-Performance Flash Enclosure, designed for DS8880 storage systems.
This chapter includes the following sections:
6.1 DS8880 overview
This chapter describes the features and major characteristics of the IBM DS8880 storage family products.
The new IBM DS8880 family introduces business-critical, hybrid data systems that span a wide range of price points. It includes two high-performance models:
•DS8884 Model 980 with its associated DS8884 Expansion Unit Model 98B
•DS8886 Model 981 with its associated DS8886 Expansion Unit Model 98E
Each model represents the most recent in this series of high-performance, high-capacity, flexible, and resilient storage systems. These systems are aimed at addressing the needs of the most demanding clients and enabling unique and powerful storage integration with IBM z Systems.
6.2 Product highlights
This section provides an overview of the features and functions that are offered by the IBM DS8880 models with firmware release 8.0.
Like its predecessors, the IBM DS8880 architecture is server-based. Powerful IBM POWER8® processor-based servers manage the cache to streamline disk input/outputs (I/Os), maximizing performance and throughput. These capabilities are further enhanced with the availability of High-Performance Flash Enclosures (HPFEs).
The DS8880 family includes the following models:
•IBM DS8884: DS8884 (model 980, with model 98B expansion frames) is the successor of the DS8870 Business Class model. It enables organizations to overcome storage challenges with advanced, easy-to-use functionality for running critical workloads on mainframes, POWER servers or distributed systems, either as a dedicated platform for consolidated systems or for multiple platforms, delivered within an affordable, flexible, and space-saving package.
•IBM DS8886: The DS8886 (model 981, with 98E expansion frames) is the successor of the DS8870 Enterprise Class model. It helps accelerate mission-critical applications with up to two times better performance, backed by 24 x 7 availability and superior functionality for multi-site replication, and deep z Systems, Power, or distributed systems integration. All of these features are provided in a dense yet expandable model.
The IBM DS8886 and DS8884 excel in supporting the IBM zEnterprise® server and IBM Power server environments. Both models can be ordered with a one-year, two-year, three-year, or four-year support period.
Figure 6-1 shows the frontal view of the DS8884 and DS8886 base frames. The racks can be slightly different in height: 40U for the DS8884, and up to 46U for the DS8886.
Figure 6-1 IBM DS8884 and DS8886 front views, base frame
6.2.1 Features
The IBM DS8880 family has these key features, among others:
•The processor complexes of the DS8880 family are based on IBM Power System servers like the S824 and S822 POWER8 models that are also independently available as stand-alone servers running AIX and Linux operating systems.
•The IBM DS8880 models feature an HPFE that provides outstanding flash performance. The HPFE is directly attached to the Peripheral Component Interconnect Express fabric, enabling increased bandwidth and transaction processing capability. This 1U storage enclosure contains a pair of powerful flash RAID adapters and up to thirty 400 gigabyte (GB) encryption-capable flash cards in each enclosure, for a maximum of 240 flash cards in the IBM DS8886 model.
•The IBM Storage Driver for OpenStack is a software component that integrates with the OpenStack cloud environment and enables usage of storage resources provided by supported IBM storage systems. After the driver is installed on the OpenStack Cinder (OpenStack Block Storage) nodes, storage volumes can be allocated by the Cinder nodes to the Nova-compute nodes. Virtual machines on the Nova-compute nodes can then use these storage resources.
•IBM Easy Tier, a well-proven feature of the DS8000 series, is available at no charge as part of the Base license package. It dynamically optimizes performance for multi-tiered systems. It can also rebalance data within a single tier to help maintain optimal performance. Now in its eighth generation, Easy Tier provides full support of the HPFE and associated flash cards, while maintaining extra features like Easy Tier Heat Map Transfer or Easy Tier Application.
•With the frame width reduced from 33 inches to 19 inches, the DS8880 comes with a 42% narrower footprint than the previous DS8870 model.
6.2.2 Scalability and performance
The IBM DS8880 models feature POWER8 server technology to help support higher performance:
•The DS8880 family is available with different processor options, which range from dual 24-cores in the DS8886 to a single 6-core systems in the DS8884. The simultaneous multithreading (SMT) mode enables the POWER8 processor to maximize the throughput of the processor core and offers more threads than competing processor technologies.
•The first generation of DS8870 (IBM POWER7®) came with 1.2 billion processors per core. The second DS8870 generation (IBM POWER7+™) came with 2.1 billion transistors. The DS8880 models come with 4.2 billion transistors per core.
•Cache configurations are available that range from 64 GB up to 2 terabytes (TB) of system cache. The storage server architecture of the IBM DS8880 with its POWER8 processors makes it possible to manage large caches with small cache segments of 4 KB (kilobytes), and hence large segment tables, without the need to partition the cache.
•Peripheral Component Interconnect Express (PCIe Generation 3) improves sequential read/write throughput and input/output operations per second (IOPS). The I/O enclosures are directly connected to the DS8880 storage servers with point-to-point PCI Express Gen3 cables.
•The HPFE is populated with 1.8-inch encryption capable 400 GB flash cards on a dedicated architecture, which outperform SSDs (solid-state drives). Each HPFE can contain up to thirty 400 GB flash cards.
Using the HPFE, the internal design of the IBM DS8880 family features a true flash architecture. By bypassing the classical device adapters (DAs), the PCIe-based architecture of the HPFE enables it to meet extreme IOPS and response time requirements, in ultra-dense packaging.
•The IBM DS8880 models have an improved 19-inch high-density frame design. As shown in Figure 6-2, it can support 1536 drives, plus 240 flash cards, in a small, high-density footprint (base frame and three expansion frames). This smaller footprint helps to preserve valuable raised floor space in data center environments.
Figure 6-2 Front view of fully configured DS8886
•The IBM DS8886 scales to more than 3 petabytes (PB) of raw drive capacity, and supports multiple storage tiers. The IBM DS8880 family supports a broad range of drives that use different technologies. Nine types of drives are managed in up to three different tiers (flash cards and flash drives as tier 0, fibre-attached serial-attached SCSI (SAS) drives with 15,000 and 10,000 revolutions per minute (RPM) as tier 1, and near-line SAS drives as tier 2).
•The DS8886 model provides up to 32 Fibre Channel host adapters, supplying a total of up to 128 ports (16 Gbps) in a single-machine footprint.
•The smaller IBM DS8884 model option supports up to 768 small form-factor (SFF) drives or flash drives, plus up to 120 high-performance flash cards.
•Write data is always protected by maintaining a copy of modified data in nonvolatile storage (NVS) until the data is destaged to hardened storage.
•The Adaptive Multi-stream Prefetching (AMP) caching algorithm can dramatically improve sequential performance, reducing times for backup, processing for business intelligence, and processing for streaming media. Sequential Adaptive Replacement Cache is a caching algorithm that allows you to run different workloads, such as sequential and random workloads, without negatively affecting each other.
•IBM Easy Tier offers capabilities such as manual volume capacity rebalance, auto performance rebalancing in both homogeneous and hybrid pools, hot-spot management, rank depopulation, manual volume migration, and thin provisioning support. It is available at no extra charge. Easy Tier also includes the following capabilities:
– Easy Tier Application enables clients to assign distinct application volumes to a particular tier in the Easy Tier pool, disregarding the Easy Tier advanced data migration function.
– Easy Tier Heat Map Transfer is able to provide whatever the data placement algorithm is on the Metro Mirror/Global Copy/Global Mirror (MM/GC/GM) primary site. It then reapplies it on the MM/GC/GM secondary site through the Easy Tier Heat Map Transfer utility when failover occurs.
– Easy Tier includes additional reporting improvements, such as workload skew curve, workload categorization, and a data movement daily report. In addition, it has intra-tiering and micro-tiering support for storage tier with more than one drive technology (mixed high performance flash cards and flash drives, or mixed Enterprise 15,000 and 10,000 RPM drives).
•Storage Pool Striping (rotate extents) provides a mechanism to distribute a volume’s or logical unit number's (LUNs) data across many RAID arrays.
•Storage Tier Advisor Tool (STAT) is a tool that is used with the Easy Tier feature to help clients understand their current storage system workloads.
•I/O Priority Manager is a feature that provides application-level quality of service (QoS) for workloads that share a storage pool. This feature provides a way to manage QoS for I/O operations associated with critical workloads, and gives them priority over other I/O operations associated with non-critical workloads. For IBM z/OS®, the I/O Priority Manager allows increased interaction with the host side.
•8 Gbps FC/IBM FICON® host adapters in the IBM DS8880 offer enhanced connectivity, with 4-port and 8-port host adapters in the I/O enclosures that are directly connected to the processor complexes. The 16 Gbps adapters are available as 4-port only.
•The host adapters support FICON attachment to IBM z Systems servers. You can configure each port to operate as a Fibre Channel Protocol (FCP) port, or FICON port.
•High-Performance FICON for IBM z Systems (zHPF) is z/OS's new I/O architecture, and already comes with several generations of enhancements. zHPF is included in the DS8880 z feature code package. Enhancements to zHPF include Extended Distance capability, zHPF List Pre-fetch support for IBM DB2 and utility operations, and zHPF support for sequential access methods. All DB2 I/O is now zHPF-capable.
•The IBM DS8880 models provide large volume support for LUN sizes up to 16 TiB. This configuration simplifies storage management tasks. In a z/OS environment, extended address volumes (EAVs) with sizes up to 1 TB are supported.
•Traditional performance features for IBM z Systems environments are parallel access volumes (PAVs), HyperPAV, Multiple Allegiance, I/O priority queuing, I/O Priority Manager, and zHPF.
•SAN Fabric I/O Priority Management: Starting with newer z Systems like IBM z13™, QoS functions have also been extended into the SAN fabric. Like for the I/O Priority Manager with z/OS, there is cooperation between the z Systems Workload Manager (WLM) and that SAN QoS function. The WLM is capable to send the priority information of each I/O to the SAN fabric and to the DS8000, completing the management of the entire end-to-end flow of an I/O.
•FICON Dynamic Routing (FIDR) is another performance-relevant function that is available with newer FICON cards like the z13 offers. When considering many paths in a SAN, for instance with a larger number of inter-switch links (ISLs), the traditional static routing often led to imbalanced ISLs with not all available bandwidth used. FIDR leads to an optimally balanced SAN, what translates into a bigger effective regain of SAN ISL bandwidth.
•Additionally, the system offers end-to-end I/O priorities, cooperative caching, long busy wait host tolerance, or automatic port queues.
6.2.3 Availability and serviceability
The DS8880 family is designed and implemented with component redundancy to avoid potential single points of failure. The DS8880 models offer high availability and multiplatform support, including z Systems.
•Up to 128 host adapter ports can be configured to operate as an Fibre Channel (FC) port or a FICON ports. The host bus adapter (HBA) cards can operate (auto-negotiate) up to two speed factors down: For the 16 Gbps HBAs, down to 4 Gbps, and for the 8 Gbps HBAs, down to 2 Gbps if needed. There is a full-duplex data transfer, over either longwave or shortwave fibre links.
•A nondisruptive upgrade path with each DS8880 model allows configuration upgrades for processors, memory, and storage capacity enhancement to be performed concurrently. The IBM DS8886 supports a scalable upgrade path from the smallest to the largest processor configuration.
An upgrade from DS8884 to DS8886 is not possible.
•The IBM DS8880 family features Smart Rebuild, a function that is designed to help reduce the possibility of secondary failures and data loss in RAID arrays. The IBM DS8000 series supports RAID 5, RAID 6, and RAID 10.
•The Dynamic Volume Expansion simplifies management by enabling easier, online volume expansion (for Open Systems and z Systems) to support application data growth, and to support data center migration and consolidation to larger volumes to ease addressing constraints.
•For data protection and availability, the IBM DS8000 series supports advanced disaster recovery (DR) and business continuity solutions, such as Copy Services functions, available for thin-provisioned volumes as well.
•Resiliency highlights include the following capabilities:
– FlashCopy handling of volume reservations provides the detection of SCSI reserves that exist for devices in a Metro Mirror or Global Mirror environments. It resets the reserve when performing a FlashCopy after it has been identified that it is not a valid reserve for a running server.
– z/OS Soft Fence prevents any system from accessing data from the former remote mirror primary site when an unplanned HyperSwap occurs.
•Active Volume Protection is a feature that prevents the deletion of volumes still in use.
•Support for T10 Data Integrity Field is standard. The Data Integrity Field standard of SCSI T10 enables end-to-end data protection, from the application or host HBA down to the storage drives.
•Lightweight Directory Access Protocol (LDAP) authentication support, which allows single sign-on (SSO) functionality, can simplify user management by allowing the IBM DS8000 to rely on a centralized LDAP directory rather than a local user repository. For more information, see LDAP Authentication for IBM DS8000 Storage, REDP-4505.
•The IBM DS8880 models are certified as meeting the requirements of the IPv6 Ready Logo program, which indicates its implementation of IPv6 mandatory core protocols and the ability to interoperate with other IPv6 implementations. They can be configured in native IPv6 environments.
6.2.4 Security and encryption
Combined with the world-class business resiliency and encryption features, the IBM DS8880 family provides a unique combination of HA, performance, and security.
To counteract the growing threat of security breaches, the IBM DS8880 has self-encrypting drives as a standard feature, and has security capabilities, such as broad-based access-control and tamper-proof audit logging, in addition to other security features:
•Self-encrypted drives are a standard feature. You just need to activate encryption on drives with IBM Security Key Lifecycle Manager (SKLM). For more information, see IBM DS8870 Disk Encryption, REDP-4500.
•Full Disk Encryption (FDE) can protect business-sensitive data by providing drive-based hardware encryption that is combined with a sophisticated key management software. FDE is available for all drive types, including flash cards and flash drives (solid-state drives (SSDs)). Because encryption is done by the drive, it is transparent to host systems, and can be used in any environment, including z/OS.
•Security improvements in the IBM DS8880 family enable customers to become compliant with the Special Publication (SP) number 800-131a, which is a National Institute of Standards and Technology (NIST) directive that provides guidance for protecting sensitive data by using cryptographic algorithms that have key strengths of 112 bits. For more information, see IBM DS8870 and NIST SP 800-131a Compliance, REDP-5069.
•The following specific features of encryption key management help address Payment Card Industry Data Security Standard (PCI DSS) requirements:
– Encryption deadlock recovery key option. When enabled, this option enables you to restore access to an IBM DS8880 when the encryption key for the storage is unavailable because of an encryption deadlock scenario.
– Dual-platform key server support. This support is important if key servers on z/OS share keys with key servers on open systems. The DS8880 family requires one isolated key server in encryption configurations. Dual-platform key server support allows two server platforms to host the key manager, with either platform operating in either clear key or secure key mode.
– Recovery Key Enabling/Disabling and Rekey data key option for the FDE feature. Both of these enhancements can help clients satisfy PCI security standards.
6.2.5 Advanced functions
The IBM DS8880 family has the following advanced functions:
•The IBM DS8880 provides DS Storage Manager (the graphical user interface (GUI)) and DS command-line interface (CLI) management interfaces to configure the system or query status information.
•Thin Provisioning enables the creation of over-provisioned devices for more efficient use of the storage capacity for Open Systems.
•Quick Initialization provides fast volume initialization for Open Systems LUNs and count key data (CKD) volumes, and therefore allows the creation of devices, making them available as soon as the command completes.
•The following list includes advanced Copy Services features in the IBM DS8000:
– IBM FlashCopy is a feature that allows the creation of volume copies (and data set copies for z/OS) nearly instantaneously. Different options are available to create full copies, incremental copies, or copy-on-write copies.
– The DS8880 models and code provide the same remote-mirroring options as previous models of the DS8000 family. Synchronous remote mirroring (Metro Mirror) is supported up to 300 km. Asynchronous copy (Global Mirror) is supported for unlimited distances.
– Metro Mirror, Global Copy, Global Mirror, Metro/Global Mirror, z/OS Global Mirror, and z/OS Metro/Global Mirror business continuity solutions are designed to provide the advanced functionality for almost any recovery point or recovery time objective.
– The Copy Services can be managed and automated with the IBM Copy Services Manager (CSM). For z/OS environments, IBM Geographically Dispersed Parallel Sysplex™ (IBM GDPS®) provides an automated DR solution.
– With AIX operating systems, the DS8880 family supports Open IBM HyperSwap replication. The Open HyperSwap is a special Metro Mirror replication method designed to automatically fail over I/O from the primary logical devices to the secondary logical devices in the event of a primary storage system failure.
– In co-operation with z/OS’s Data Mover, another option is available for z/OS: Global Mirror for z/OS. Another important feature for z/OS Global Mirror (2-site) and z/OS Metro/Global Mirror (3-site) is Extended Distance FICON.
– Remote-Pair FlashCopy enables you to establish a FlashCopy relationship where the target is a remote mirror Metro Mirror primary volume, keeping the pair in the full-duplex state.
– The Easy Tier Heat Map Transfer function is also integrated with IBM Copy Services Manager or with newer GDPS versions, and all of the functions are available through the IBM Copy Services Manager.
– The Resource Groups feature is a policy-based resource scope limiting function that enables the secure use of Copy Services functions by multiple users on a DS8000 series storage system.
•The IBM DS8880 provides support for VMware vStorage application programming interfaces (APIs) for Array Integration (VAAI). VAAI enables certain storage tasks to be offloaded from the server hardware to the storage array. Support is included for the Atomic Test and Set (ATS) primitive, the Cloning Blocks primitive, and the Zeroing Blocks primitive.
•The DS8880 family supports VASA 2.0, and the RESTful API.
•The IBM DS8880 models also support the IBM Storage Management Console for VMware vCenter. The IBM Storage Management Console for VMware vCenter is a software plug-in that integrates into the VMware vCenter server platform and enables VMware administrators to independently and centrally manage their storage resources on IBM storage systems.
6.3 Models
The DS8880 delivers extensive scalability as compared to previous DS8870 systems:
•IBM DS8886 Model 981 configuration
With 8-, 16- or 24-core processor complexes, the DS8886 Model 981 supports up to 192 2.5-inch disk drives and 120 flash cards for a maximum capacity of up to 355.2 TB. It also supports up to 2 TB of processor memory with up to 64 Fibre Channel/FICON ports. With an optional expansion unit (DS8886 Model 98E), it scales as follows:
– With one DS8886 Model 98E Expansion Unit, the DS8886 Model 981 (16- or 24-core) supports up to 128 Fibre Channel/FICON ports, 480 disk drives and 240 flash cards. This configuration provides up to 864 TB of physical capacity with 1.6 TB SSD drives, or up to 240 drives for up to 1.06 PB of physical capacity with 4 TB nearline SAS disk drives.
– With two DS8886 Model 98E Expansion Units, the DS8886 Model 981 (16- or 24-core) supports up 912 disk drives. This configuration provides up to 1.46 PB of physical capacity with 1.6 TB SSD drives, or up to 456 drives for up to 1.82 PB of physical capacity with 4 TB nearline SAS disk drives.
– With a third DS8886 Model 98E Expansion Unit, the DS8886 Model 981 (16- or 24-core) supports up 1 344 disk drives. This configuration provides up to 2.15 PB of physical capacity with 1.6 TB SSD drives, or up to 672 drives for up to 2.69 PB of physical capacity with 4 TB nearline SAS disk drives.
– With a forth DS8886 Model 98E Expansion Unit, the DS8886 Model 981 (16- or 24-core) supports up 1 536 disk drives. This configuration provides up to 2.46 PB of physical capacity with 1.6 TB SSD drives, or up to 768 drives for up to 3.1 PB of physical capacity with 4 TB nearline SAS disk drives.
•IBM DS8884 Model 980 configuration
With a 6-core processor complex, the DS8884 Model 980 supports up to 240 2.5-inch disk drives and up to 60 flash cards for a maximum capacity of up to 408 TB. It also supports up to 256 GB of processor memory with up to 32 Fibre Channel/FICON ports. With an optional expansion unit (DS8884 Model 98B), it scales as follows:
– With one DS8884 Model 98B Expansion Unit, the DS8884 Model 980 (128 or 256 GB memory) supports up to 64 Fibre Channel/FICON ports, 528 disk drives and 120 flash cards. This configuration provides up to 892.8 TB of physical capacity with 1.6 TB SSD drives, or up to 264 drives for up to 1.1 PB of physical capacity with 4 TB nearline SAS disk drives.
– With two DS8884 Model 98B Expansion Units, the DS8884 Model 980 (127 or 256 GB memory) supports up to 768 disk drives, providing up to 1.23 PB of physical capacity with 1.6 TB SSD drives, or up to 384 drives for up to 1.54 PB of physical capacity with 4 TB nearline SAS disk drives.
To meet performance and configuration needs, the new DS8880 family features a complex of dual POWER8 servers. Each server is equipped with either single processors (6-, and 8-core), or dual processors (16-, and 24-core).
Table 6-1 provides more information about drive and adapter counts with the two available configuration options.
Table 6-1 DS8880 models and characteristics
|
Model
|
Cores per Processor Complex
|
Physical capacity
|
Disk drives
|
Processor
memory
|
Host adapters
|
9xE attach
|
Flash enclosures
|
|
DS8886 configuration:
|
|||||||
|
981
|
8-core
|
355 TB
|
192
|
256 GB
|
16
|
0
|
4
|
|
981
|
16-core
|
2.55 PB
|
1536
|
512 GB
|
32
|
0 to 4
|
8
|
|
981
|
24-core
|
2.55 PB
|
1536
|
2048 GB
|
32
|
0 to 4
|
8
|
|
DS8884 configuration:
|
|||||||
|
980
|
6-core
|
408 TB
|
240
|
64 GB
|
8
|
0
|
2
|
|
980
|
6-core
|
1.28 TB
|
768
|
256 GB
|
16
|
0 to 2
|
4
|
|
Model
|
Cores per Processor Complex
|
Physical capacity
|
Disk drives
|
Processor
memory
|
Host adapters
|
9xE attach
|
Flash enclosures
|
|
DS8886 configuration first expansion:
|
|||||||
|
98E
|
N/A
|
508.8 TB
|
288
|
N/A
|
16
|
981
|
4
|
|
DS8886 configuration second/third expansions:
|
|||||||
|
98E
|
N/A
|
681.2 TB
|
432
|
N/A
|
0
|
981
|
0
|
|
DS8886 configuration fourth expansion:
|
|||||||
|
98E
|
N/A
|
307.2
|
192
|
N/A
|
0
|
981
|
0
|
|
DS8884 first expansion configuration first expansion:
|
|||||||
|
98B
|
N/A
|
460.8
|
288
|
N/A
|
8
|
980
|
2
|
|
DS8884 first expansion configuration second expansion:
|
|||||||
|
98B
|
N/A
|
384 TB
|
240
|
N/A
|
0
|
980
|
0
|
Figure 6-3 on page 152 shows the front view of a DS8886, with one expansion frame attached.
•The base frame shows the two POWER8 server-based processor complexes. Processors and system memory can be upgraded concurrently.
•Four HPFEs are shown in the base frame, and four in the first expansion frame.
•Four I/O bay enclosures are shown in the base frame, and four in the first expansion frame. The adapters that are contained in the I/O enclosures can be either DAs or host adapters, or you can have the connection to the HPFEs.
•Primary (and optional secondary) Hardware Management Console (HMCs) are at the bottom of the base frame.
The power subsystem is based on direct current uninterruptible power supply (DC-UPS) with integrated battery sets. Each frame contains two DC-UPS power supplies in a fully redundant configuration.
Figure 6-3 DS8886 front view, with one expansion frame shown
For more information about the expansion frames and specifications, see the IBM DS8880 Introduction and Planning Guide, GC27-8525.
6.3.1 Other configuration features
This section highlights that main features, upgrades, and options that can be requested with new DS8880 orders or installed later.
•A secondary HMC can be ordered as a redundant HMC to provide continuous availability to the HMC functions. The use of a second HMC can be useful in storage environments where Encryption capability or Copy Services functions have been activated.
•The extended power line disturbance (ePLD) option is designed to protect your storage unit for 40 seconds, rather than only 4 seconds, from a power-line disturbance. If no ePLD option is ordered, one Battery Set Module (BSM) set per DC-UPS (for both the main and expansion racks) is needed. If the ePLD option is ordered, two BSM sets per DC-UPS (for both the main and expansion racks) are needed.
•An optional overhead cabling feature is available. The overhead cabling option includes a top-exit bracket for fiber cables.
6.3.2 Warranty information and upgrades
DS8880 offers the Enterprise Choice warranty of 1, 2, 3 or 4 years on both the hardware and the advanced function software in the following way:
•4 years on type 2834 models
•3 years on type 2833 models
•2 years on type 2832 models
•1 year on type 2831 models
6.3.3 Scalable upgrades
With the DS8884 model, it is possible to start with a single-frame 6-core configuration with storage enclosures for 48 DDMs, and grow to a full-scale, 768-drive, 120 Flash Card, three-frame configuration.
With the DS8886 model, it is possible to start with a single-frame 8-core configuration, and grow to a 1536-drive, 240 Flash Card, five-frame configuration. All frame and capacity upgrades are concurrent, regardless of configuration type.
6.3.4 Licensed functions
Many of the software optional licensed functions of the DS8880 need a License Key to be activated. In fact, licensed functions are enabled through a licensed function indicator feature plus a licensed function authorization feature number.
The following three licensed functions are available:
•Base Function: The Base Function license is required for each DS8880 storage system.
•Copy Services: Copy Services features help you implement storage solutions to keep your business running 24 hours a day, 7 days a week by providing data duplication, data migration, and disaster recovery functions.
•z-synergy Services: The z-synergy Services include z/OS licensed features that are supported on the storage system.
Licensed functions are activated and enforced within a defined License Scope. License scope refers to the type of storage, and therefore the type of servers, that the function can be used with: Fixed Block (FB), Count Key Data (CKD) or both FB and CKD. Orders come in increments of a specific capacity.
The Base Function license is ordered to cover the full physical capacity of the storage system. It includes the following features:
•Operating Environment License (OEL)
•Database protection
•Encryption Authorization
•Easy Tier
•I/O Priority Manager
•Thin Provisioning.
The Copy Services license includes the following features (including Multi-Target PPRC relations):
•Metro Mirror
•Global Mirror
•Metro/Global Mirror
•Point-in-Time Copy / FlashCopy
•z/OS Global Mirror
•z/OS Metro/Global Mirror Incremental Resync (RMZ Resync).
The z-synergy Services license is available for CKD scope and includes the following features:
•Parallel Access Volumes (PAV)
•HyperPAV
•High-Performance FICON for z Systems (zHPF)
•z/OS Distributed Database Backup.
For more information, see the IBM DS8880 Introduction and Planning Guide, GC27-8525.
6.3.5 Supported environments
The DS8000 offers connectivity support across a broad range of server environments, including IBM Power Systems, z Systems, servers from Oracle and Hewlett-Packard, non-IBM Intel, and AMD-based servers.
The DS8000 supports over 90 platforms. For the most current list of supported platforms, see the DS8000 System Storage Interoperation Center (SSIC) at this website:
For information about supported environments, see IBM System Storage DS8000: Host Attachment and Interoperability, SG24-8887.
For information about VMware, see IBM DS8870 and VMware Synergy, REDP-4915.
This rich support of heterogeneous environments and attachments, along with the flexibility to easily partition the DS8880 storage capacity among the attached environments, can help support storage consolidation requirements and dynamic environments.
Disk Magic
Disk Magic is a Microsoft Windows-based performance modeling tool that is used by IBM and IBM Business Partners to model storage system performance. It supports storage systems from multiple vendors and offers detailed support for IBM storage systems.
|
Important: IBM Disk Magic for Windows is a product of IntelliMagic, which is licensed to IBM and IBM Business Partners to model disk storage system performance. Contact your IBM Representative or IBM Business Partner to discuss a Disk Magic study.
|
6.4 Related information
For more information, see the following publications and links:
•IBM DS8880 Architecture and Implementation (Release 8), SG24-8323
•IBM DS8880 Introduction and Planning Guide, GC27-8525
•IBM System Storage DS8884 and DS8886 (Machine type 2831) Models 980 and 981 with one-year warranty - Product Announcement (20 October 2015):
•IBM System Storage DS8884 and DS8886 (Machine type 2832) Models 980 and 981 with two-year warranty - Product Announcement (20 October 2015):
•IBM System Storage DS8884 and DS8886 (Machine type 2833) Models 980 and 981 with three-year warranty - Product Announcement (20 October 2015):
•IBM System Storage DS8884 and DS8886 (Machine type 2834) Models 980 and 981 with four-year warranty - Product Announcement (20 October 2015):
•IBM DS8880 (Machine type 283x) high-performance flagship Function Authorizations - Product Announcement (20 October 2015):
•IBM DS8870 Copy Services for Open Systems, SG24-6788
•IBM DS8870 Copy Services for IBM z Systems, SG24-6787
•IBM System Storage DS8000 Copy Services Scope Management and Resource Groups, REDP-4758
•IBM DS8870 Multiple Target Peer-to-Peer Remote Copy, REDP-5151
•IBM DS8000 Easy Tier, REDP-4667
•DS8870 Easy Tier Application, REDP-5014
•IBM DS8870 Easy Tier Heat Map Transfer, REDP-5015
•DS8000 Thin Provisioning, REDP-4554
•DS8000 I/O Priority Manager, REDP-4760
•LDAP Authentication for IBM DS8000 Storage, REDP-4505
•IBM DS8870 Disk Encryption, REDP-4500
•Introduction to IBM Assist On-site Software for Storage, REDP-4889
•IBM Assist On-Site:
•IBM Tivoli Assist On-site Remote Support Utility. User’s Guide:
•IBM System Storage DS8000: Host Attachment and Interoperability, SG24-8887:
•DS8000 Performance Monitoring and Tuning, SG24-8318
•IBM DS8870 and VMware Synergy, REDP-4915
•IBM DS8000 Series Command-Line Interface User’s Guide, SC27-8526
•IBM Knowledge Center / IBM System Storage DS8000 Information Center:
•DS8880 support:
•IBM System Storage Interoperation Center (SSIC):
•IBM drive storage feature activation (DSFA):
•Using IBM DS8870 in an OpenStack Environment, REDP-5220
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