Nondisruptive Service And Upgrades - Hitachi Virtual Storage Platform G1000 Hardware Manual

Typical system configurations
The storage systems can be configured to a meet a variety of storage needs,
with the following typical configurations based on customer use-cases:
• Tiered storage: A storage system configured for tiered storage consists
• Maximum performance: A storage system configured with only flash
• Maximum storage capacity: A storage system containing 12 LFF chassis
Software applications
The storage systems provide the foundation for matching application
requirements to different classes of storage and delivering critical services,
including:
• Business continuity services
• Content management services (search, indexing)
• Thin provisioning
• Dynamic Tiering
• High availability
• Security services
• I/O load balancing
• Data classification
• File management services

Nondisruptive service and upgrades

The storage systems are designed specifically to avoid any interruptions
during normal operations while servicing or upgrading the system
components.
• Main components can be "hot-swapped" (added, removed, or replaced
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Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
of multiple drive types, including high-performance flash module drives for
fast data access, medium performance and capacity drives for most
storage needs, and maximum capacity drives for data warehousing, all in
one system. A tiered storage system can be configured with FMDs (flash
module drives), SSDs (solid state drives), SAS drives (SFF or LFF), and
high-capacity LFF drives. Software applications such as Dynamic Tiering
allocate data to the appropriate drives based on frequency of access.
module drives delivers maximum performance. This two-controller system
can contain 12 FMD chassis with a total of 576 FMDs. This system is
designed for an online retail site where customers expect fast access to
multiple images, or a hospital medical imaging system where physicians
need immediate access to 3D CAT or MRI images.
with a total of 1152 LFF drives provides the maximum storage capacity.
This system configuration with less priority for high-speed access is ideally
suited for use as a data warehouse for medical or insurance records.
without disruption) during normal operation. These include every module
in the controller chassis and the drive chassis, such as power supplies,
virtual storage directors, front-end directors, and back-end directors,
cache and cache backup modules, SVPs, and drives.
VSP G1000, VSP G1500, and VSP F1500 overview