Set Storage Subsystem Enclosure Positions - IBM System Storage DS3000 Programming Manual

When you define values to stop cache flush, the higher the value, the higher the chance that the data for
a host read requires a drive read, rather than a reading from the cache.
Default Host Type
When you define host types, if Storage Partitioning is enabled, the default host type affects only those
logical drives that are mapped in the default group. If Storage Partitioning is not enabled, all of the hosts
that are attached to the storage subsystem must run the same operating system and be compatible with
the default host type.
Media Scan Rate
Media scan runs on all of the logical drives in the storage subsystem that have Optimal status, do not
have modification operations in progress, and have the mediaScanRate parameter enabled. Use the set
logicalDrive command to enable or disable the mediaScanRate parameter.
Password
Passwords are stored on each storage subsystem. For best protection, the password must:
v Be between eight and 32 characters long.
v Contain at least one uppercase letter.
v Contain at least one lowercase letter.
v Contain at least one number.
v Contain at least one non-alphanumeric character, for example, < > @ +.
Note: If you are using Full Disk Encryption (FDE) disk drives in your storage subsystem, you must use
these criteria for your storage subsystem password.
If you are using full disk encryption drives in your storage subsystem, you must use these criteria for
your storage subsystem password.
Important: You must set a password for your storage subsystem before you can create a security key for
encrypted Full Disk Encryption (FDE) disk drives.

Set Storage Subsystem Enclosure Positions

This command defines the position of the enclosures in a storage subsystem. You must include all of the
enclosures in the storage subsystem when you enter this command.
Syntax
set storageSubsystem enclosurePositions=(controller |
enclosureID ... enclosureIDn)
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IBM System Storage DS3000, DS4000, and DS5000: Command Line Interface and Script Commands Programming Guide