IBM DS8880 Series, Introduction And Planning Manual

Page: 117 / 244

Table 54. Required I/O enclosures and device adapters for DS8886 (models 986 and
86E) (continued)
Processor
type Storage frame Standard drive
enclosure pair
features (1241)
1
Required
device adapter
pair features
(3053)
2
High
Performance
Flash
Enclosure
Gen2 pair
features
(1600)
3
Required
I/O
enclosure
features
(1303)
4
16-core or
24-core Second, third,
or fourth
expansion
frame 1
2
3
4 - 9
1
2
3
4 n/a
n/a
n/a
n/a n/a
n/a
n/a
n/a
Notes:
1. Each storage enclosure feature represents one storage enclosure pair.
2. Each device adapter feature code represents one device adapter pair. The maximum
quantity is two device adapter features for each I/O enclosure feature in the storage
system.
3. Each High Performance Flash Enclosure Gen2 feature represents one High Performance
Flash Enclosure Gen2 pair, and a pair of flash RAID adapters and required cables. The
maximum quantity is two High Performance Flash Enclosure Gen2 features for each
I/O enclosure feature in the storage system.
4. Each I/O enclosure feature represents one I/O enclosure pair. An I/O enclosure pair
can support up to two device adapter pairs and one High Performance Flash Enclosure
Gen2 card pairs.
For all-flash storage systems, use the following tables to determine the number of
I/O enclosures and High Performance Flash Enclosure Gen2 features that you need
in various storage configurations. To use the table, find the rows that contain the
type of all-flash storage system that you are configuring. Then, find the row that
represents the number of High Performance Flash Enclosure Gen2 pairs that are
installed in that storage system.
Table 55. Required I/O enclosures for all-flash DS8884F (model 984)
Processor type Storage frame High Performance
Flash Enclosure
Gen2 pair features
(1600)
1
Required I/O
enclosure features
(1303)
2
6-core or 12-core
3
Base frame 1 - 2
3 - 4 1
2
Notes:
1. Each High Performance Flash Enclosure Gen2 feature represents one High Performance
Flash Enclosure Gen2 pair, and a pair of flash RAID adapters and required cables. The
maximum quantity is two High Performance Flash Enclosure Gen2 features for each
I/O enclosure feature in the storage system.
2. Each I/O enclosure feature represents an I/O enclosure pair. Each I/O enclosure pair
can support two High Performance Flash Enclosure Gen2 pair.
3. 12-core processors are supported only with zHyperLink.
Chapter 4. Storage system physical configuration
105