IBM DS8880 Series, Введение и руководство по планированию

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Table 10. Components for the DS8886 (machine type 283x models 985 and 85E) (continued)
Processors
System
memory Processor
memory I/O enclosure
pairs
Host
adapters
(8 or 4
port)
Device adapter
pairs
Standard drive
enclosure pairs
1,
2
High
Performance
Flash Enclosure
Gen2 pairs
1, 2, 3
Expansion
frames
1. Standard drive and High Performance Flash Enclosures Gen2 are installed in pairs.
2. This configuration of the DS8880 must be populated with either one standard drive enclosure pair (feature code 1241) or one High Performance
Flash Enclosure Gen2 pair (feature code 1600).
3. Each High Performance Flash Enclosure Gen2 pair (feature code 1600) includes a pair of flash RAID adapters.
Table 11. Maximum capacity for the DS8886 (machine type 283x models 985 and 85E)
Processors
System
memory
Maximum
2.5-in.
standard
disk drives
Maximum
storage
capacity for
2.5-in.
standard
disk drives
Maximum
3.5-in.
standard
disk drives
Maximum
storage
capacity for
3.5-in.
standard
disk drives Maximum
2.5-in. Flash
Tier 0, Flash
Tier 1, or
Flash Tier 2
drives
Maximum
storage
capacity for
2.5-in. Flash
Tier 0, Flash
Tier 1, or
Flash Tier 2
drives
Maximum
total drives
1
8-core 128 GB
256 GB 144 259 TB 72 432 TB 96 730 TB 240
16-core 256 GB
512 GB 1536 2.76 PB 768 4.61 PB 192 1459 TB 1728
24-core 1024 GB
2048 GB 1536 2.76 PB 768 4.61 PB 192 1459 TB 1728
1. Combined total of 2.5-in. disk drives and 2.5-in. Flash Tier 0, Flash Tier 1, or Flash Tier 2 drives.
Base frame (model 985) overview:
The DS8886 (model 985) includes a base frame.
The base frame includes the following components:
v Standard storage enclosures
v High Performance Flash Enclosures Gen2
v Hardware Management Console (HMC), including a keyboard and monitor
v Second HMC (optional)
v Ethernet switches
v Processor nodes (available with POWER8 processors)
v I/O enclosures
v Direct-current uninterruptible power supplies (DC-UPS)
v Rack power control (RPC) cards
Expansion frame (model 85E) overview:
The DS8886 supports up to four expansion frames (model 85E) that can be added
to a base frame (model 985). A minimum of 256 GB system memory and a 16-core
processor is required, if expansion frames are added.
The first expansion frame supports up to 240 2.5-inch standard disk drives. The
second and third expansion frames support up to 432 2.5-inch standard disk
drives. A fourth expansion frame supports an extra 288 2.5-inch standard disk
drives. When all four frames are added, the DS8886 can support a total of 1,536
2.5-inch disk drives in a compact footprint, creating a high-density storage system
and preserving valuable floor space in data center environments.
Chapter 1. Overview
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