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Chapter 1: Introduction
Details on installation of memory modules into the SBI-7127R-S6 blade module are
found in Chapter 3: "Setup and Installation" on page 3-1.
Storage
The SBI-7127R-S6 blade module can have six 2.5" SATA/SAS/SSD hard disk drives in
front-mounted easy removable carriers. See Chapter 3: "Setup and Installation" on
page 3-1 for storage installation details.
RAID
Each SBI-7127R-S6 blade module supports up to three hard drives, which may be used
to create a RAID 0, 1, 5 and 10 (Windows), RAID 0, 1 and 10 (Linux) or RAID 0, 1, 5, 6,
10 and 50 SAS array. For RAID setup use the procedure below. This blade’s BIOS has a
RAID utility available in its setup.
With two or hard drives per blade, the following RAID configurations are supported:
• RAID 0 (Data Striping): this writes data in parallel, interleaved (“striped”) sections on
two hard drives. Data transfer rate is doubled over using a single disk.
• RAID1 (Data Mirroring): an identical data image from one drive is copied to another
drive. The second drive must be the same size or larger than the first drive.
• Enhanced RAID 5 or RAID 10 (Data Mirroring): as RAID1 with data mirrored from
one or more disks to one or more disks of a second, larger size. You can couple the
disks from the source to create a virtual volume and use one or more disks of a
second, larger size to provide a single larger volume (or multiple larger volumes)
that serve as the mirroring drive or drives for the array.
Density
A maximum of ten blade modules may be installed into a single blade enclosure. Each
blade enclosure is a 7U form factor, so a standard 42U rack may accommodate up to six
enclosures with 60 blade modules, or the equivalent of 60 1U servers. With the inclusion
of six CMM modules, twelve Gigabit Ethernet switches and six InfiniBand switches, this
would occupy up to 84U space in a conventional 1U server configuration.
Figure 1-1 displays a view of a full rack with six blade enclosures in it, each with ten
blades to an enclosure.