Question:

How can we download USB module to factory initialize DDOS as a specific version?

Answer:

·         In which situation, you need USB module

o   You need to initialize the system by any specific reasons (be aware the existing data and settings will be cleared)

o   You need to downgrade DDOS version by any specific reasons (be aware the existing data and settings will be cleared)

·         Considerations

The procedure is intended for expert (EMC engineer or Service Enabled Partner) of Data Domain because management BIOS and serial connecting skills are required

·         How to apply for USB module

To get USB procedure is special one because this is for installing back to factory initialize. So the URL for download is not open for public. So follow the instructions below.

1.       Open Service Request

Following information is required

o   Intended DDOS release code (for example, 5.6)

o   Serial number of the Data Domain

o   Reasons to initialize

2.       The URL for applying is noticed by EMC support contact personnel.

3.       Please apply from Feedback Central. So downloading USB will become available immediately after applying.

Refer to the following for apply manner. It’s not required to apply for another request.

4.       Please contact us after you get the USB module. (The Service Request will be closed.)

o   All versions you applied (USB module was prepared) can be downloaded.

o   Any version you want to use can be used.

o   The posting of rpm module is delayed against the normal one so that if there isn’t the intended version’s USB module please use one older version for the factory initialization and then upgrade it as normal DDOS upgrade.

·         Information for USB modules

o   Sample of download file after applying

Home > DD OS 5.6 USB Image > 5.6 USB Image Code > DD OS 5.6.1.0 USB image + MD5 : 5.6.1.0.usbimage.513706.zip

o   Refer for DDOS versions

KB 184446 "DD OS Software Versions”

https://support.emc.com/kb/184446

·         How to use USB module (Initialize)

useful document

docu50133 - Data Domain Operating System USB Installation Guide

https://support.emc.com/docu50133_Data_Domain_Operating_System_USB_Installation_Guide.pdf?language=en_US

·         Considerations

o   Only DD2200 / DD2500 needs to change boot order of USB key on BIOS screen after insert USB (recover is not required after the initializing)

Referring to

KB 305604 - DD2200/DD2500 USB Boot Procedure

                https://support.emc.com/kb/305604

o    Prepare PuTTY.exe and connect serial cable as follows.

"""

Baud rate: 9600

Bits: 8

Parity: None

Stop Bits: 1

Flow Control: None

PuTTY Configuration – Terinal– Keyboard : The Function keys and keypad を VT100+に変更

"""

Author: Hiroki Kobayashi