828 Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1
License key
An alphanumeric code that activates a licensed function on a product.
License key file
A file that contains one or more licensed keys.
Lightweight Directory Access Protocol
Lightweight Directory Access Protocol (LDAP) is an open protocol that uses TCP/IP to
provide access to directories that support an X.500 model and that does not incur the
resource requirements of the more complex X.500 Directory Access Protocol (DAP). For
example, LDAP can be used to locate people, organizations, and other resources in an
Internet or intranet directory.
Local and remote fabric interconnect
The local fabric interconnect and the remote fabric interconnect are the SAN components that
are used to connect the local and remote fabrics. Depending on the distance between the two
fabrics, they can be single-mode optical fibers that are driven by long wave (LW) gigabit
interface converters (GBICs) or small form-factor pluggables (SFPs), or more sophisticated
components, such as channel extenders or special SFP modules that are used to extend the
distance between SAN components.
Local fabric
The local fabric is composed of SAN components (switches, cables, and so on) that connect
the components (nodes, hosts, and switches) of the local cluster together.
Logical unit and logical unit number
The logical unit (LU) is defined by the SCSI standards as a logical unit number (LUN). LUN is
an abbreviation for an entity that exhibits disk-like behavior, for example, a volume or an
MDisk.
Machine signature
A string of characters that identifies a system. A machine signature might be required to
obtain a license key.
Managed disk
A managed disk (MDisk) is a SCSI disk that is presented by a RAID controller and managed
by IBM Storwize V5000. The MDisk is not visible to host systems on the SAN.
Managed disk group (storage pool)
See “Storage pool (managed disk group)” on page 834.
Metro Global Mirror
Metro Mirror Global is a cascaded solution where Metro Mirror synchronously copies data to
the target site. This Metro Mirror target is the source volume for Global Mirror that
asynchronously copies data to a third site. This solution has the potential to provide disaster
recovery with no data loss at Global Mirror distances when the intermediate site does not
participate in the disaster that occurs at the production site.
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