HP P2000 G3 Reference Manual page 140

MC
metadata
network port
point-to-point
primary volume
proxy volume
remote replication
replication image
replication set
replication snapshot
replication sync point
SAS
SATA
SC
secondary volume
secret
SES
single-port disk
140 Glossary
Management Controller. The processor (located in a controller module) that is responsible
for human-computer interface and computer-computer interface functions, and interacts with
the SC.
Data in the first sectors of a disk drive that stores all disk, vdisk, and volume specific
information including vdisk membership or spare identification, vdisk ownership, volumes
and snapshots in the vdisk, host mapping of volumes, and results of the last media scrub.
The Ethernet port on a controller module through which its Management Controller is
connected to the network.
Fibre Channel Point-to-Point topology.
The volume that is the source of data in a replication set and that can be mapped to hosts.
For disaster recovery purposes, if the primary volume goes offline, a secondary volume can
be designated as the primary volume. The primary volume exists in a primary vdisk in the
primary (or local) storage system.
A virtual volume in the local system that represents a volume in a remote system. Proxy
volumes are used internally by the controllers to perform actions such as transferring
replication data.
Asynchronous (batch) replication of block-level data from a volume in a local system to a
volume in one or more remote systems by moving the data contained within individual
point-in-time snapshots from a local system to one or more remote systems via Fibre Channel
or iSCSI links. The capability to perform remote replication is a licensed feature (Remote
Snap).
A replication image is a snapshot that contains the data for a specific point in time for a
replication set's primary volume, as viewed by any volume in the replication set. All
snapshots with the same image ID contain the exact same data, and therefore represent the
same replication image.
Associated primary and secondary volumes that are enabled for replication and that
typically reside in two physically or geographically separate storage systems. See primary
volume and secondary volume.
A special image-stabilized snapshot that is taken explicitly for the purposes of replication.
This snapshot cannot be mounted for access by hosts and is not counted against snapshot
licensing. Its sole purpose is for use in the replication process. This snapshot is typically
used as a replication sync point. A replication snapshot can be converted to a regular,
licensed snapshot.
A snapshot that exists on the primary volume and has been successfully replicated to a
secondary system.
Serial Attached SCSI interface protocol or disk-drive architecture.
Serial ATA disk-drive architecture.
Storage Controller. The processor (located in a controller module) that is responsible for
RAID controller functions. The SC is also referred to as the RAID controller.
The volume that is the destination for data in a replication set and that is not accessible to
hosts. For disaster recovery purposes, if the primary volume goes offline, a secondary
volume can be designated as the primary volume. The secondary volume exists in a
secondary vdisk in a secondary (or remote) storage system.
The contents of a secondary volume are in a constant state of flux and are not in a
consistent state while a replication is in process. Only snapshots that are associated with a
secondary volume are data consistent.
For use with CHAP, a password that is shared between an initiator and a target to enable
authentication.
SCSI Enclosure Services.
A disk that is connected to both controllers so its data path is not fault-tolerant. A single-port
disk's type is shown as SAS-S or SATA-S.