IBM System Storage DS3000, Programming Manual

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Disk Pool Background Operations
Disk pools support these background operations:
v
Reconstruction
v
Instant Availability Format (IAF)
v
Format
v Dynamic Capacity Expansion (DCE)
v
Dynamic Volume Expansion (DVE) (For disk pools, DVE is actually not a background operation, but
DVE is supported as a synchronous operation).
Disk pools do not queue background commands. You can start several background commands
sequentially, but starting more than one background operation at a time delays the completion of
commands that you started previously. The relative priority levels for the supported background
operations are:
1.
Reconstruction
2. Format
3. IAF
4. DCE
Security Type
The
securityType
parameter is valid for drives that are capable of full disk encryption (FDE). With FDE,
the controller firmware can create a key and activate the Full Disk Encryption feature. The Full Disk
Encryption feature encrypts data as the data is written to the drive and decrypts the data as the data is
read from the drive. Without the key created by the controller, the data written to the drive is
inaccessible.
Before you can set the
securityType
parameter to
capable
or
enabled
, you must create a storage
subsystem security key. Use the create
storageSubsystem securityKey
command to create a storage
subsystem security key. These commands are related to the security key:
v create storageSubsystem securityKey
v enable subsystem [subsystemName] security
v export storageSubsystem securityKey
v import storageSubsystem securityKey
v set storageSubsystem securityKey
v start secureErase (drive | drives)
Create Enhanced FlashCopy Group
This command creates a new Enhanced FlashCopy group and the associated repository logical drive. An
Enhanced FlashCopy group contains a sequence of Enhanced FlashCopy images of an associated base
logical drive. An Enhanced FlashCopy group has a repository logical drive that is used to save data for
all of the Enhanced FlashCopy images that are part of the Enhanced FlashCopy group.
Syntax
create enhancedFlashCopyGroup userLabel="enhancedFlashCopyGroupName" sourceLogicalDrive="logicaldriveName"
(repositoryLogicalDrive="repos_xxxx" |
repositoryLogicalDrive=(subsystemName [capacity=capacityValue])
repositoryLogicalDrive=(diskPoolName [capacity=capacityValue]))
[repositoryFullPolicy=(failBaseWrites | purgeEnhancedFlashCopyImages) |
rollbackPriority=(highest | high | medium | low | lowest) |
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IBM System Storage DS3000, DS4000, and DS5000: Command Line Interface and Script Commands Programming Guide