Infortrend EONSTOR A16E-G2130-4 Manual Do Utilizador

Chapter 3: Subsystem Monitoring

after a few seconds.

Note that restoring default will not affect the

existing RAID configurations of disk drives.

Table 3-3: Controller LED Definitions

Restore NVRAM Defaults – a Push Button

CAUTION!

The Restore NVRAM Default push button is a function that carries some

risks. Firmware restoration will not destroy the existing logical drive

configurations; however, if the existing logical drives cannot be

adequately associated with host ID/LUNs after firmware default

restoration, data loss or inconsistencies might occur.

There is a non-latch type push button accessed through a round opening
underneath the Restore Default LED.

Listed below are the necessary procedures that should be
completed before using this button:

1. Before pressing this button to restore firmware defaults, it is highly advised

to make a list of the existing ID/LUN mapping information. You will need

the list for restoring ID/LUN mapping after restoring defaults. Default

restoration will erase the ID/LUN mapping associations (e.g., which logical

drive is associated with which host ID/LUN), and it is necessary to restore

the host ID/LUN mapping after firmware default restoration in order to

access data on the previously configured arrays.

2. Some of the latest firmware updates may be incompatible with the firmware

currently running on your subsystem. These updates may require restoring

firmware defaults before firmware upgrade can actually take place. Before

using the button, it is highly advised to practice the following:

  Stop host I/Os,
  Backup your data,
  Make a list of host ID/LUN mapping information for future

references.

You may also jot down the configured parameters such as the

performance preferences, specific stripe sizes, etc.

3. The no. 3 condition that requires restoring defaults is when an administrator

forgets the password configured to control the access to a RAID subsystem.

Before pushing this button, also practice the steps listed above. You can

access array information even without a password.

Status-indicating LEDs

3-5