IBM Midrange System DS4000 Series Hardware Manual page 85

Disk drives
Up to 112 TB physical storage capacity.
Accommodates up to 16 disk drives installed within the DS5020 enclosure.
Attachment support for up to six EXP520 expansion enclosures.
Attachment support for EXP810 with the
Supports an intermix of SATA drives, FC drives, and encryption-capable FC drives (FDE)
within the DS5020 and EXP520 enclosures.
Host attachment
Provides SAN-attached 8 Gbps Fibre Channel (FC) host connectivity, as well as optional
1GbE iSCSI host connectivity.
All DS5020s have four 8 Gbps FC ports (two per controller).
Additionally you may order initially either:
– 2-Dual 8 Gbps Host Interface Cards (HIC)
– 2-Dual 1 Gbps ISCSI HIC
System cache
DS5020 comes with 2 GB cache memory (1 GB per internal RAID controller).
The 4 GB cache memory (2 GB per RAID controller) feature is available as an initial plant
order feature.
There are no cache memory upgrades available as field (MES) features for the DS5020.
Drive options
FC disks without encryption:
– 146.8 GB/15K 4 Gbps FC DDM
– 300 GB/15K 4 Gbps FC DDM
– 450 GB/15K 4 Gbps FC DDM
– 600 GB/15K 4 Gbps FC DDM
with encryption
FC disk
– 146.8 GB/15K 4 Gbps FC encryption-capable DDM
– 300 GB/15K 4 Gbps FC encryption-capable DDM
– 450 GB/15K 4 Gbps FC DDM encryption-capable DDM
– 600 GB/15k 4 Gbps FC DDM encryption-capable DDM
SATA disks:
– 750 GB/7.2K SATA DDM
– 1000 GB/7.2K SATA DDM
The DS5020 supports RAID 0, 1, 3, 5, 6, and 10.
Attach EXP810 to DS5020 Activation feature
:
Chapter 3. IBM System Storage DS4000 and DS5000 hardware
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