Cisco MDS zoning
Zones
and zone sets are the basic form of data path security within a Fibre
Channel environment. A zone set is a collection of zones which in turn
have individual members in them. Only those members within the same zone
can communicate with each other. A device can be a member of multiple
zones and those devices not in a zone are in the default zone. The
policy for the default zone can either be to permit devices to see each
other or to deny devices in the default zone from seeing each other.
Zoning is a method of arranging Fibre Channel devices into logical groups over the physical configuration of the fabric.
Basics and Data flow in NetApp Clustered Data OnTAP
Similar
to 7-mode we have three administrative privilage levels: admin,
advanced and diagnostic. Clustered ONTAP system can be managed either
from CLI or GUI (system manager or element manager). There are three
different shells available with different scopes: Clustershell,
nodeshell, systemshell
Step:1 Access through CLI
Clustershell:
=========
-SSH is default method
-One can access clustershell using cluster management LIF (recommended) or the node management LIFs
-Scope: entire cluster
=========
-SSH is default method
-One can access clustershell using cluster management LIF (recommended) or the node management LIFs
-Scope: entire cluster
LIFs Management: ‘net int show‘
with display the output of available cluster management and node
management LIFs along with their IP’s, current node, current port and
status
Basic introduction and steps to setup NetApp Cluster-mode
Introduction to Clustered Data OnTAP:
Data
ONTAP 8 merges the capabilities of Data ONTAP 7G and Data ONTAP GX into
a single code base with two distinct operating modes: 7-Mode, which
delivers capabilities equivalent to the Data ONTAP 7.3.x releases, and
Cluster-Mode, which supports multicontroller configurations with a
global namespace and clustered file system. As a result, Data ONTAP 8
allows you to scale up or scale out storage capacity and performance in
whatever way makes the most sense for your business.
With
Cluster-Mode the basic building blocks are the standard FAS or V-Series
HA pairs with which you are already familiar (active-active
configuration in which each controller is responsible for half the disks
under normal operation and takes over the other controller’s workload
in the event of a failure). Each controller in an HA pair is referred to
as a cluster “node”; multiple HA pairs are joined together in a cluster
using a dedicated 10 Gigabit Ethernet (10GbE) cluster interconnect.
This interconnect is redundant for reliability purposes and is used for
both cluster communication and data movement.
Full StoryEnhancements to NFS and SMB – NetApp Cluster-mode
NFSv4:
1. Data ONTAP 8.1 cluster-mode introduces support for NFSv4 protocol specification as well as elements of NFSv 4.1
2. cluster mode continues to fully support NFSv2 and NFSv3 although you should not use NFSv2 with cluster mode
3. NFSv4 support brings the Data ONTAP 8.1 cluster mode operating system in parity with the Data ONTAP 7.3 operating system
4. The key feature of NFSv4 is referrals, NFSv4.1 is a minor revision of version 4.0 and is an extension of version 4 not a modification, so it’s fully compliant with the NFSv4 specification it extends delegations beyond files to directories and send links introduces NFS sessions for enhanced efficiency and reliability provides parallel NFS, pNFS Full Story
3. NFSv4 support brings the Data ONTAP 8.1 cluster mode operating system in parity with the Data ONTAP 7.3 operating system
4. The key feature of NFSv4 is referrals, NFSv4.1 is a minor revision of version 4.0 and is an extension of version 4 not a modification, so it’s fully compliant with the NFSv4 specification it extends delegations beyond files to directories and send links introduces NFS sessions for enhanced efficiency and reliability provides parallel NFS, pNFS Full Story
SRDF – Symmetrix remote data facility
Introduction:
Symmetrix
Remote Data Facility (SRDF) family of software is the industry’s most
powerful suite of remote storage replication solutions for disaster
recovery and business continuity designed by EMC.
SRDF
transparently remotely mirrors production or primary (source) site data
to a secondary (target) site. The local SRDF device, known as the
primary (RDF1) device, is configured in a partner relationship with a
remote secondary (RDF2) device to form an SRDF pair. By maintaining
copies of data in different physical locations, SRDF enables the
following operations with minimal impact on normal business processing:
■ Disaster restart
■ Disaster restart testing
■ Recovery from planned outages
■ Remote backup
■ Data center migration
■ Data replication and mobility
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