The following components and functions are integrated within the 58/88 or ED/R1 PCIe storage
enclosure:
v
The enclosure RAID module (ERM) contains the RAID adapter function and the expander function.
v
The storage enclosure uses internal wiring to connect components with multiple redundant paths,
eliminating the need for external SAS cables.
v
Increased number of 1.5-inch solid-state drives (SSDs) (up to 30).
PCIe storage enclosure features
This table shows the main features of the 58/88 and ED/R1 PCI Express (PCIe) storage enclosures.
Table 1. PCIe storage enclosure features
Feature code
58/88
ED/R1
Description
IBM EXP30 Ultra solid-state drive
(SSD) I/O drawer
IBM EXP30 Ultra solid-state drive
(SSD) I/O drawer
System connection
x8
x8
Systems supported
31E/2B, 31E/1C, or 31E/2C, 02E/4C,
05E/6C
31E/2B, 31E/1C, or 31E/2C, 02E/4C,
05E/6C
Operating systems supported
1
AIX
®
, Linux
AIX, Linux
High availability (HA) two-system
redundant array of independent
disks (RAID)
Yes
Yes
HA single-system RAID
Yes
Yes
Requires HA RAID configuration
Yes
Yes
JBOD drives supported
No (requires drives formatted 528
bytes/block)
No (requires drives formatted 528
bytes/block)
Internal SSD drive type
1.8-inch small form factor (SFF) 6 GB
Dual Ported serial-attached SCSI
(SAS) SSD
1.8-inch small form factor (SFF) 6 GB
Dual Ported serial-attached SCSI
(SAS) SSD
SSD drive feature codes supported
ES02
ES02
Internal SSD drives
Six minimum to 30 maximum
Six minimum to 30 maximum
External HDD drives
None
48 maximum
Figure 2. Dual storage IOA solution integrated within the 58/88 or ED/R1 PCIe storage enclosure.
Service information
3
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