Cisco Profile Series User manual

Contents

Introduction

Prerequisites

Components Used

Configure

Introduction

This guide is inteded to show you how to configure 'Just a bunch of disks' (JBOD) on the Cisco

12G SAS Modular RAID Controller in a C-Series server.

Caveats:

* JBOD disks are not able to take advantage of any hardware caching on the RAID controller.

http://www.redbooks.ibm.com/redpapers/pdfs/redp5234.pdf (general documentation on RAID /

JBOD)

* If caching is required on these disks, then you can put them into a RAID 0 array (striping) and

present this to the OS. Recall that RAID0 has no parity, so please note that the more disks added

to a RAID 0, the larger your failure domain, or the greater the chance of data loss across all disks

due to a single disk failure. This is the nature of RAID 0. Good performance, intolerant of even a

single disk failure. This is acceptable for some applications and use cases however.

Prerequisites

C-Series Server

●

Cisco 12G SAS Modular Raid Controller

●

1 or more HDD

●

Access to CIMC / KVM

●

Components Used

Cisco C240-M4 running 2.0(6d) CIMC

●

Cisco 12G SAS Modular Raid Controller running 4.250.00-3632

●

Configure

As a safety precaution, if you have a pre-existing RAID configuration, please back up the data on

that Virtual Disk (VD) prior to making these changes.

If you have existing Virtual Disk (VD), RAID 1 for instance, that you wish to preserve, its

configuration should be preserved after enabling JBOD, though a reboot is required to enter the

pre-boot RAID configuration menu (CTRL+R) to enable JBOD.

At the time of this writing, it appears that JBOD is disabled on the controller by default, and cannot

be enabled on the 12G Controller via the CIMC, only the pre-boot RAID Configuration menu

(CTRL+R).

If you wish for ALL disks to be JBOD, then delete any existing Virtual Disks (VD) on the RAID.

This should release the Physical Disks (PD) into 'Unconfigured Good'. This can be done via

CIMC or CTRL+R pre-boot RAID configuration menus. This should be expected to delete data

on any Virtual Disk that you Delete so back up important data accordingly.

Confirm if JBOD is enabled or disabled already:

1) Log into CIMC.

2) Click Storage > Select 12G controller > Controller Info tab.

Enable JBOD

1) If disabled, reboot the host, and press CTRL+R to enter the RAID configuration screens.

2) Press CTRL+N twice, navigate to 'Enable JBOD' and press 'space'. Ensure that the [X] shows

in the square brackets.

3) Press CTRL+S to save.

4) Press Escape to exit.

5) This will convert ALL available disks to JBOD. Again, in my testing, it did not convert PD

allocated to VD (RAID 1) to JBOD, and my OS was still in tact on that RAID 1.

6) Confirm JBOD is enabled.

If you don't already have a Virtual Disk (VD), then you can configure some number of disks as

'Unconfigured Good' so you can add them to a new Virtual Disk (VD) or RAID Volume.

You can now toggle the disks between 'Unconfigured Good' (which can be added to RAID) or

'JBOD' from within the CIMC.

You will find that for any PD that is a member of a VD / RAID Group, you do not have the option

convert it to JBOD. The PD must be removed from the VD / RAID Group prior to getting the option

to convert it to a JBOD disk.

Other manuals for Profile Series

10

Table of contents

Other Cisco Server manuals

Cisco

Cisco UCS C240 M4 Installation and maintenance instructions

Cisco

Cisco AS5300 - Universal Access Server Technical document

Cisco

Cisco Content Delivery Engine CDE100 Manual

Cisco

Cisco UCS C200 Installation and maintenance instructions

Cisco

Cisco UCS B460 M4 Manual

Cisco

Cisco UCS E Series Operating and safety instructions

Cisco

Cisco UCS 5100 User manual

Cisco

Cisco TelePresence Server 7010 Specification sheet

Cisco

Cisco UCS C220 M3 System manual

Cisco

Cisco Secure Network Server 3600 Series Manual

Cisco

Cisco UCS B420 M4 Manual

Cisco

Cisco UCS C220 M3 User manual

Cisco

Cisco SCE8000 GBE Operator's manual

Cisco

Cisco MXE 3500 Manual

Cisco

Cisco UCS E Series User manual

Cisco

Cisco UCS Invicta C3124SA Manual

Cisco

Cisco AS5200-PWR-AC Parts list manual

Cisco

Cisco ONS 15454 Series User manual

Cisco

Cisco UCS C210 Installation and maintenance instructions

Cisco

Cisco TelePresence User manual

Cisco

Cisco UCS B460 M4 Manual

Cisco

Cisco UCS C210 M2 System manual

Cisco

Cisco UCS C220 M3 Installation and maintenance instructions

Cisco

Cisco SCE 8000 10GBE User manual

Popular Server manuals by other brands

HP

HP AlphaServer ES47 Cli reference manual

Dell

Dell PowerEdge R410 Getting started

PowerNAS

PowerNAS CMA quick start guide

Supero

Supero FatTwin F617R3-FT user manual

MSI

MSI P1-109N-L70 user manual

Dell

Dell PowerEdge XE9640 Installation and service manual

Dell

Dell PS4100 Hardware

EtroVISION

EtroVISION EV3151 user manual

NEC

NEC Express5800/T110j System configuration guide

HP

HP ProLiant Gen9 user guide

Compaq

Compaq ProLiant 3000 Maintenance and service guide

Dell

Dell PowerEdge 3YPMN Getting started guide

iRobo

iRobo IPC2U user manual

Nortel

Nortel 1000 Con?guration guide user manual

Asus

Asus AP7500 Hardware reference guide

Avid Technology

Avid Technology AirSpeed 5000 manual

HP

HP Integrity rx2600 overview

Milestone

Milestone Husky IVO 350T Getting started