About 5U84 storage shelves
Veritas offers two external storage shelf models for the 3340 Appliance.
These include the:
5U84 Primary Storage Shelf (required)
5U84 Expansion Storage Shelf (optional)
Both of the 5U84 Storage Shelf chassis include a set of common internal core components, along with a set of plug-in modules.
The core components include:
Two sliding disk drawers that contain Disk Drive In Carrier (DDIC) modules
A front operations panel
A front bezel
Mid-plane printed circuit boards (PCB) that interface with controllers on the 5U84 Primary Storage Shelf and the 5U84 Expansion Storage Shelf.
In addition to the core components, the storage shelves also incorporate the following plug-in modules:
Two 12Gb SAS-3 RAID controller modules (5U84 Primary Storage Shelf only)
Two Storage Bay Bridge 2.1-compliant Expansion I/O controller modules (5U84 Expansion Storage Shelf only)
Two power supply units (PSUs)
Five fan modules
82 Disk Drive In Carrier (DDIC) modules with disk drives installed
Two blank Disk Drive in Carrier (DDIC) modules
A rail kit for rack mounting
The 5U84 Primary Storage Shelf and the 5U84 Expansion Storage Shelf each use a 5U chassis. Each chassis contains two sliding disk drive drawers that are located in the front of the storage shelf. Each drawer holds 41 Disk Drive In Carrier (DDIC) modules. The DDIC modules are installed in the drive drawer slots, which hold a total of 82 disk drives. Each DDIC module holds a 7200 rpm SAS-3-based disk drive with a capacity to hold either 4 TB or 10 TB of data. The disk drives and the DDIC modules are hot-swappable and can be replaced on-site while the storage shelf is operational.
Note:
Each storage shelf drawer must be populated with disk drives of the same capacities. A mix of storage shelves, with different capacities in separate storage shelves is not supported.
In each storage shelf, two of the disk drives are used as global hot spares. Using 10-TB disk drives, a storage shelf provides 636.3TiB (700 TB) of usable data storage capacity. Using 4-TB disk drives, a storage shelf provides 254.4TiB (280 TB) of usable data storage capacity. The storage shelf disk drives are arranged in five RAID 6 sets, each comprised of 16 disk drives. Depending on the storage configuration you purchase, the Access 3340 Appliance storage system supports up to 2.8PB of usable data storage space.