IBM Midrange System DS4000 Series User Manual

274 IBM Midrange System Storage Hardware Guide
The secure erase process is shown in Figure 5-15.
Figure 5-15 Secure erase process
Secure erase can only be performed on drives that are not allocated to an array. The process
is also referred to as re-provisioning, where:
򐂰 The FDE drive becomes fully reusable.
򐂰 The drive can be reused in secure or non-secure applications.
򐂰 Previous data and keys are not accessible.
򐂰 It executes in less than a second.
򐂰 It returns the drive to the original factory state.
5.4.4 FDE drive status
The FDE drives have a status indicating whether the disk can be accessed. The statuses are:
򐂰 Locked
– The drive is security capable.
– The drive has security enabled.
– The lock key has not been supplied to the drive.
– Data cannot be read or written from drive.
򐂰 Unlocked
– The drive is security capable.
– The drive has security enabled.
– The lock key has been supplied to the drive.
– Data can be read or written from drive.
Warning: All data on the disk will be permanently and irrevocably erased when the secure
erase operation is completed for a security-enabled FDE drive. Do not perform this action
unless you are sure that you want to erase the data, as there is no recovery.
Data on Drive
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jumps over the lazy dog
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Data on Drive
Data Read from DriveUser Data
Data
Encryption
Key
New
Data
Encryption
Key
Writing to the Drive
Encryption Process
Reading from the Drive
Decryption Process
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Instant Secure
Erase
Change Data Encryption
Key

IBM Midrange System DS4000 Series Specifications

General

Brand	IBM
Model	Midrange System DS4000 Series
Category	Storage
Language	English