Huawei OceanStor N8500 T Series Installation Manual page 369

OceanStor N8500 Clustered NAS Storage System
Installation Guide (for T Series V100R005)
Member disk
reconstruction
Mode 0
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Modify the stripe
unit size
dynamically
N
NAS
NFS
Issue 02 (2015-09-22)
A function of the OceanStor storage system. It refers to the process of
restoring the data from the faulty disk to the new disk after you replace
a faulty member disk in a RAID group with a new one.
balance-rr, round-robin policy, Transmit packets in sequential order
from the first available slave through the last. This mode provides load
balancing and fault tolerance.
active-backup, active-backup policy, Only one slave in the bond is
active. A different slave becomes active if, and only if, the active slave
fails.
balance-xor, XOR policy, Transmit based on the selected transmit hash
policy. The default policy is a simple [(source MAC address XOR'd
with destination MAC address) modulo slave count]. Alternate transmit
policies may be selected via the xmit_hash_policy option.This mode
provides load balancing and fault tolerance.
broadcast, broadcast policy, transmits everything on all slave interfaces.
This mode provides fault tolerance.
802.3ad, IEEE 802.3ad Dynamic link aggregation, Creates aggregation
groups that share the same speed and duplex settings.Utilizes all slaves
in the active aggregator according to the 802.3ad specification.
balance-tlb, adaptive transmit load balancing, channel bonding that does
not require any special switch support. The outgoing traffic is
distributed according to the current load (computed relative to the
speed) on each slave.Incoming traffic is received by the current slave.
If the receiving slave fails, another slave takes over the MAC address
of the failed receiving slave.
balance-alb, adaptive load balancing, includes balance-tlb plus receive
load balancing (rlb) for IPV4 traffic, and does not require any special
switch support.The receive load balancing is achieved by ARP
negotiation. The bonding driver intercepts the ARP Replies sent by the
local system on their way out and overwrites the source hardware
address with the unique hardware address of one of the slaves in the
bond such that different peers use different hardware addresses for the
server.
To modify the stripe unit size without interrupting the normal services
of a LUN.
(Network-Attached Storage), NAS is a file-level computer data storage
connected to a computer network providing data access to
heterogeneous network clients.
(NetWork Filesystem), A network file sharing protocol which is usually
used in Linux/Unix environment.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
C Glossary
360