Huawei OceanStor S5600 Initial Configuration Manual page 139

OceanStor S5600 Storage System
Initial Configuration Guide
Service data
SFP optical
module
Simple network
management
protocol (SNMP)
Single point
failure
Smooth expansion A process of expanding capacity online without interrupting services.
Snapshot
Snapshot copy
Snapshot LUN
Standby network
port
Storage controller The component performs the following functions: operation
Storage system
Streaming media
Stripe
Stripe depth
Stripe unit
Issue 02 (2009-09-30)
Data which is saved in data disk. Service data is the data source for
computing check data in parity disk.
A component that can make data conversion between optical signals
and electrical signals and that can receive and transmit data.
An internet engineering task force(IETF) protocol used to monitor and
manage the systems and devices on a network. The monitored and
managed data is defined by the management information base(MIB).
The protocol supports the following functions: data request, data
retrieval, data setting or data writing, and trap.
Since some components or channels are not redundant, the failure of a
device or component causes the breakdown of all devices or
components.
To create point-in-time snapshot for the original LUN of hyper copy.
Only incremental hyper copy supports this operation. After hyper copy,
data of the target LUN is consistent with that of the original LUN created
in point time.
A copy of snapshot, which is also a virtual snapshot.
The LUN is a virtual device, the data of which is decided on the data
that is activated in point time.
In relation to the active network port, the standby network port is a
redundant network port on an AS. When the active network port fails,
the standby network port is activated to work.
conversion, RAID, LUN mapping, disk-striping setting, and other
service and fault alarm. It consists of the controller board and port
module.
An integrated system. It consists of the following parts: controller,
storage array, host bus adaptor, physical connection between storage
devices, and all control software.
A transmission mode in which data is consumed (read, listened to, or
watched) while it is being sent.
The process of dividing the consecutive data into the same-sized data
blocks and writing the data on each block into different disks. This
technology provides a faster read/write speed than a single disk can
provide.
The number of blocks in a strip in a disk array which uses striped data
mapping. Also, the number of consecutively addressed virtual disk
blocks mapped to consecutively addressed blocks on a single member
extent of a disk array.
The physical extent block that consists of stripes in each physical extent
of a redundancy group.
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B Glossary
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