IBM totalstorage 326, Справочник пользователя

Страница: 135 / 240

Chapter 9. Using the Recovery and Supplementary CDs
Attention: Changing the preloaded software configuration of this product,
including applying or installing unauthorized service packs or updates to preinstalled
software, or installing additional software products that are not included in either the
preloaded image or on the Supplementary CD might not be supported and could
cause unpredictable results. For updated compatibility information, see:
www.ibm.com/storage/support/nas
To correct problems with a preloaded software component, back up your user and
system data. Then, use the Recovery CD Set to restore the preloaded software
image.
This chapter describes the applications included on the Supplementary and
Recovery CDs, and how and when you should use them.
As an alternative to using the Recovery CD Set, you can use the restore portion of
the disaster recovery solution provided by Persistent Storage Manager (PSM) to
recover the node. The restore function allows you to restore the node to the state it
was in at the time of the PSM backup in one step. You will not have to revert back
to the original (factory) configuration, which would require you to subsequently
reconfigure clustering and other components. See “Restoring the system drive using
the PSM recovery diskette” on page 66 to determine whether you meet the
requirements to use PSM. If you have not met the requirements for using the PSM
recovery method, or if the PSM recovery fails, then you must use the Recovery CD
Set as described in this chapter.
Using the Recovery Enablement Diskette and Recovery CD
The Recovery CD Set (four CDs, labeled as “Recovery CD 1,” “Recovery CD 2,”
“Recovery CD 3,” and “Recovery CD 4”) contains the preload image for the Model
326 and is used to recover the preloaded image on either node of the appliance.
You must start the (failed) appliance node using the Recovery Enablement Diskette
before you can boot Recovery CD 1.
Attention: The Model 326 does not have a monitor, keyboard, or mouse attached
to it under normal operating conditions. Because of this, you cannot interact with
the preload-image restore process using a monitor. Starting Recovery CD 1 will,
without visually prompting the user, automatically destroy all data on the system
drive. Use the Recovery Enablement Diskette and Recovery CD Set only when it is
absolutely necessary to restore the preloaded system image.
To recover the preloaded image on a (failed) node, perform the following steps:
1. Delete all persistent images to ensure a clean reload of the system software.
Note: The recovery process invalidates persistent images and leaves them in
a state that is inconsistent with their pre-recovery state.
2. On the other (operational) node of the Model 326, select Cluster
Administration , located in the Cluster Tools folder in the IBM NAS Admin. If
prompted for a cluster name, enter the name of the cluster, and then click
Open .
© Copyright IBM Corp. 2002
123