Cisco UCS B420 M4 Nota de instalación y mantenimiento - Página 7

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Overview

Figure 3: SD Card Slots

Modular Storage Subsystem

The Cisco UCS B420 M4 blade server has two optional FlexStorage modular storage subsystems that can be

configured with SAS or SATA hard disk drives (HDDs) or solid state disks (SSDs). The product IDs for the

modular storage subsystems are as follows:

• UCSB-MRAID12G, Cisco FlexStorage 12G SAS RAID controller with drive bays

• UCSB-MRAID12G-HE, Cisco FlexStorage 12G SAS RAID controller with 2 GB flash-back write cache

• UCSB-LSTOR-PT, passthrough module with drive bays

• UCSB-LSTOR-BK, Cisco FlexStorage blanking panels without controller or drive bays

Because the blade server can be used without disk drives, it does not come with any modular storage subsystems

installed. Blanking panels should be used on a diskless UCS B420 M4 blade server to ensure proper airflow.

Order the same number of blanking panels as there are empty drive bays.

There are two RAID controller options for the modular storage subsystems. One supports RAID 0, 1, 10 and

the other supports RAID 0, 1, 10, 5, 6, with optional 2 GB flash-backed write cache, when four drives are

present.

The Cisco UCS B420 M4 blade server supports the following configurations of drive bays and RAID controllers.

and drive bays

Cisco UCS B420 M4 Blade Server Installation and Service Note

Modular Storage Subsystem