Datasheet

IBM BladeCenter HS23 14
Internal disk storage options
The HS23 server has two hot-swap drive bays accessible from the front of the blade server. These bays
are connected to the integrated 4-port LSI SAS2004 6 Gbps SAS/SATA RAID-on-Chip (ROC) controller.
The integrated LSI SAS2004 ROC has the following features:
Four-port controller with 6 Gbps throughput per port
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PCIe x4 Gen 2 host interface
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Two SAS ports routed internally to the two hot-swap drive bays
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Two ports can be routed externally to the chassis I/O bays 3 and 4 with SAS Connectivity Card
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(CIOv)
Supports RAID levels 0 (Integrated Striping), 1 (Integrated Mirroring), 10 (Integrated Mirroring and
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Striping), and 1E (Integrated Mirroring Enhanced)
Supports up to 14 drives (up to 12 integrated RAID drives and up to two hot-spare drives) for
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integrated RAID configurations
Supports up to 10 integrated RAID drives per integrated volume
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Supports up to two integrated volumes
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Supports volumes greater than 2 TB for RAID 0, 10, and 1E
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Supports SAS and SATA HDDs and SSDs
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Supports connectivity to the EXP2500 series and EXP3000 storage expansion enclosures
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Support connectivity to the tape drives and external storage systems
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