IBM BladeCenter HS23E
14
Internal disk storage options
The HS23E server has two hot-swap drive bays accessible from the front of the blade server. These bays
are connected to the integrated ServeRAID C105 Controller supplying basic software RAID capabilities
for SATA hard drives. An optional ServeRAID H1135 Controller with hardware RAID capabilities is
required to support SAS HDDs, SATA SSDs, and external SAS-based storage attachments. The following
table lists the RAID controllers used for the internal disk storage of the HS23E server.
Table 9. RAID controllers for internal storage
Part number
Feature code
Description
Maximum
supported
Standard models
where used
None#
A349
ServeRAID C105 for IBM System x
1
All models
90Y4750
A1XJ
ServeRAID H1135 Controller for
IBM Flex System and BladeCenter
1
-
# The ServeRAID C105 is an onboard software RAID controller.
The ServeRAID C105 onboard controller has the following specifications:
Supports up to two internal hot-swap SATA HDDs (SAS HDDs and SSDs are not supported)
Support for RAID 0 and RAID 1 (non-RAID is not supported)
3 Gbps throughput per port
Support for up to eight volumes
Support for virtual drive sizes greater than 2 TB
Fixed stripe unit size of 64 KB
Support for MegaRAID Storage Manager management software
Important
: ServeRAID C105 has no native (in-box) driver for Windows and Linux; the drivers must be
downloaded separately. ServeRAID C105 is not supported by VMware, Hyper-V, Xen, and KVM
hypervisors.
The ServeRAID H1135 Controller has the following specifications:
Based on the LSI SAS2004 6 Gbps SAS 4-port controller
Up to 6 Gbps throughput per port
CIOv form factor
PCIe 2.0 x4 host interface
Two SAS ports routed internally to the two hot-swap drive bays
Two SAS ports routed externally to the chassis I/O bays 3 and 4
Support for SAS/SATA HDD and SSD drives
Support for RAID 0, 1, 1E, and 10, and non-RAID
Support for up to two RAID volumes
Support for up to 10 drives in one RAID volume
Support up to 14 volume drives, including up to two hot-spare drives
Support for virtual drive sizes greater than 2 TB
Fixed stripe size of 64 KB
S.M.A.R.T. support
Support for MegaRAID Storage Manager management software
Supports connectivity to the EXP3000, EXP2512, and EXP2524 storage expansion enclosures
Supports connectivity to the BladeCenter S disk storage modules (via SAS Connectivity Modules or
SAS RAID Controller Modules), tape drives, and external storage systems
Supports operations as a RAID controller for the internal drives and as an HBA for the external
storage at the same time