IBM 201 manual Schedules, Restore Persistent Images, Disaster Recovery

Schedules

Use this panel to schedule persistent images to be taken at specific times (this is independent of the scheduled backup function via NAS Backup Assistant described earlier). Each PSM schedule entry defines a set of persistent images to be taken starting at a specified time and at a specified interval, with each image having the set of properties defined in the entry. This allows you to customize scheduled persistent images on a per-volume basis.

For instance, you could set a persistent image for one volume to occur every hour, and for another volume to occur only once a day. The set of properties you can define are the same properties described in the Persistent Images panel description above; when you define these properties, all persistent images created according to this schedule entry will be given those properties. Once a scheduled persistent image is created, certain properties of that persistent image can be modified via the Persistent Images panel, independently of other persistent images created according to the schedule.

Once a schedule entry is created, it appears in the list of scheduled persistent images. Subsequently you can modify the properties of an existing entry, such as start time, repetition rate, the volume(s), and so on. For a schedule you can name the persistent images based on a pattern you configure; format specifiers (defined on the New Persistent Image Schedule panel under the Persistent image name(s) entry field) allow you to customize variable portions of the name.

Restore Persistent Images

On this panel, you can select an existing persistent image and quickly restore the volume contained in the image back to the state it was in at the time the selected persistent image was taken. This is useful if you need to recover an entire volume, as opposed to just a few files. This volume restore function is available for the data volumes, but not the system volume.

Disaster Recovery

PSM provides a disaster recovery solution for the system drive. This extends the volume restore function of PSM to provide disaster recovery in the event that the system drive is corrupted to the point where the file system is corrupt, or the operating system is unbootable. Note that while disaster recovery is also supported via the Recovery CD-ROM and backup and restore capability, that is a two-step process. In contrast, the method supported by PSM allows you to restore the system drive from a single image, without having to go through the entire recovery procedure and then additionally having to restore a system drive backup.

Use the Disaster Recovery panel to schedule and create backup images of the system drive, and to create a bootable diskette which will allow you to restore the system drive from a backup image (located on the maintenance partition, or network drive). The remainder of this section provides additional information on how to perform backup and recovery operations for the NAS 200.

Note: Restoration of a PSM backup image over the network is not supported for the Gigabit Ethernet Adapter. If you have only Gigabit Ethernet adapters installed, it is recommended that you perform PSM backup of each NAS 200 to its maintenance partition (D: drive), which would allow you to recover if the system volume is corrupt and/or unbootable. Should the hard disk drive fail completely, you would need to use the Recovery CD as described in “Using

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