A Global Active Device (GAD) is a concept in IBM Spectrum Virtualize and IBM SAN Volume Controller (SVC) storage systems. If your environment has the GAD storage, you can configure the Hitachi GAD to create and maintain synchronous, remote copies of data volumes. One of the most advanced solutions in this space is the Global-Active Device (GAD), a technology that enables continuous availability of mission-critical applications by providing active-active data centers.
What is a Global Active Device(GAD)?
A Global Active Device (GAD) is a concept in IBM Spectrum Virtualize and IBM SAN Volume Controller (SVC) storage systems. This simply implies that both storage systems or data centers are operational, reachable, and providing data simultaneously. Additionally, a GAD allows two distinct data storage arrays to read, write, and handle requests for the same set of data volumes simultaneously in real-time. A Global Active Device guarantees that both locations are capable of handling input/output (I/O) activities concurrently and are synchronously active. Then, on Hitachi Vantara Virtual Storage Platform (VSP) storage systems, you may take snapshots of GAD pairings using IntelliSnap backups.
Key points
- Data is kept in real-time sync between both sites.
- Facilitates the balance of workload among locations.
- Global Active Device (GAD) in IBM Spectrum Virtualize.
- It allows active-active access to storage volumes from two sites.
How Does a Work Global-Active Device(GAD)?
A Global Active Device (GAD), which connects two storage systems at various locations, maintains both of them running at the same time. Global-Active Device, unlike older setups where one site acted as primary and the other only as backup, GAD empowers both sites to operate simultaneously for reading and writing data. This architecture is often referred to as active-active data center design, and it is a step above traditional active-passive disaster recovery strategies.
The mechanism involves:
- A Global Active Device connects two storage sites.
- Both sites stay active at the same time for reading and writing data.
- Load balancing: Workloads can be distributed across sites for performance optimization.
Principle of Global-Active Device(GAD)
The principle of a Global Active Device (GAD) is based on providing continuous availability and real-time synchronization of data between two separate storage systems. A mirrored pair of physical volumes (LUNs) dispersed over two storage arrays in separate data centers makes up this virtual volume. Applications may read and write data simultaneously from either site in this configuration since both sites are operational at the same time.
Hitachi Global-Active Device
Hitachi Global-Active Device (GAD) is a high-availability storage solution developed by Hitachi that enables two data centers to operate in an active-active configuration. Hitachi storage volumes must be cabled and preconfigured for GAD, with required quorum disks and available path groups. PowerVC does not configure the GAD storage; instead, it uses the existing GAD-configured storage.
The key future of Global-Active Device
- Workload Balancing: Distributes processing between sites for better performance.
- Load distribution: Applications can access data from the nearest or least-loaded site, improving performance.
- Synchronous Replication – Data is mirrored instantly between sites.
- Integration with virtualization: Works well with storage virtualization platforms, which many enterprises already use.
- Global-Active Device: button on the already registered Hitachi storage provider details page. You will be prompted to provide the secondary Hitachi storage device details.
Conclusion
A Global Active Device (GAD) is a concept in IBM Spectrum Virtualize and IBM SAN Volume Controller (SVC) storage systems. Additionally, a GAD allows two distinct data storage arrays to read, write, and handle requests for the same set of data volumes simultaneously in real-time. Global-Active Device, unlike older setups where one site acted as primary and the other only as backup, GAD empowers both sites to operate simultaneously for reading and writing data. PowerVC does not configure the GAD storage; instead, it uses the existing GAD-configured storage.
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FAQs
What is a Global Active Device?
A Global Active Device (GAD) is a concept in IBM Spectrum Virtualize and IBM SAN Volume Controller (SVC) storage systems. This simply implies that both storage systems or data centers are operational, reachable, and providing data simultaneously.
For which types of industries is GAD most suitable?
Global Active Device is particularly suitable and critical for industries such as healthcare, finance, and e-commerce. Moreover, any business where downtime and data loss would result in severe financial or reputational damage, GAD acts like a hero and an absolute game-changer.
What does Hitachi Global do?
Hitachi provides proton beam therapy and other particle beam therapy systems, as well as medical analytic and diagnostic equipment.