v flash RAID adapters
I/O enclosures
I/O enclosures are required for your storage system configuration.
The I/O enclosures hold the I/O adapters and provide connectivity between the
I/O adapters and the storage processors. I/O enclosures are ordered and installed
in pairs.
The I/O adapters in the I/O enclosures can be either device or host adapters. Each
I/O enclosure pair can support up to four device adapters (two pairs), and up to
eight host adapters (not to exceed 32 host adapter ports).
Feature codes for I/O enclosures
Use this feature code to order I/O enclosures for your storage system.
The I/O enclosure feature includes two I/O enclosures. This feature supports up to
two device adapter pairs, up to four host adapters with eight ports, and up to
eight host adapters with four ports. This feature includes four dedicated PCIe ports
for attachment of High Performance Flash Enclosures Gen2.
Table 43. Feature codes for I/O enclosures
Feature code Description
1303 I/O enclosure pair for PCIe group 3
Feature codes for I/O cables
Use these feature codes to order the I/O cables if your storage system is a DS8886.
I/O cables are not required for other system types, including all-flash systems.
Table 44. Feature codes for PCIe cables
Feature
Code
Cable Group Description Models
1320 PCIe cable group 1 Connects device and host adapters in
an I/O enclosure pair to the
processor.
985 and 986
1321 PCIe cable group 2 Connects device and host adapters in
I/O enclosure pairs to the processor.
985 and 986
Fibre Channel (SCSI-FCP and FICON) host adapters and
cables
You can order Fibre Channel host adapters for your storage-system configuration.
The Fibre Channel host adapters enable the storage system to attach to Fibre
Channel (SCSI-FCP) and FICON servers, and SAN fabric components. They are
also used for remote mirror and copy control paths between DS8000 series storage
systems, or between a DS8000 series storage system and a 2105 (model 800 or 750)
storage system. Fibre Channel host adapters are installed in an I/O enclosure.
Adapters are either 4-port or 8-port 8 Gbps, or 4-port 16 Gbps.
Supported protocols include the following types:
Chapter 4. Storage system physical configuration 99
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