Clariion Foundations

7/27/2019 Clariion Foundations

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EMC CLARiiON


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Topics Covered

Different Clariion Models Clariion Architecture

Physical components & cabling

Clariion data flow Different disk types used

Raidgroup, Lun & Storage group

Flare, Access Logix & Powerpath Intro to Replication Technologies

Storage Provisioning using Navisphere Simulator


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Models


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Architecture for CX3 Series


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Clariion Data Flow


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Comparison

Models CX300

&300i

CX400 CX500

&500i

CX600 CX700

Disks 60 & 30 60 120 240 240

Memory 2GB 2GB 4GB 8GB 8GB

SPs 2 2 2 2 2

Luns 512 512 1024 1024 2048

No of

switches

/fabric

16 16 16&N/A

for 500i

16 16


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Disk Types

ATA

- 250GB, 320GB and 500GB disk drives

- Drive Carriers, Paddle Cards- Disk drives with a single PATA interface

- Disk drives with a single SATA interface

- Disk drives with dual SATA interfaces

- Low Cost


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Fibre Channel Drives

Enterprise class Devices

9,18,36,73,146 and 300 GB disks with 10000

rpm.

18,36 and 73 GB also available with 15000 rpm.

Provides Advanced seek optimizations, high

Rotational speed.

High Cost and performance.


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Vault Drives and PSM

Reserved area found on specific protected disks.

Drives 0-3 in DAE-OS contains the SP boot

information

Drives 0-4 in DAE-OS are used for Cache Vault

During power failures, data can be temporarily

dumped into it and can be restored back Persistent Storage Manager (PSM) Lun


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Cache

Cache is very fast memory,also a

repository for frequently accessed data.

Two Parts:

- Data Store

- Tag RAM

Read cache Write Cache


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Flare

An Operating

Environment which

provides features like

- Clariion Meta Luntechnology

- Clariion Virtual Lun

technology

Access Logix


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Navisphere

Clariion Management Software.

Navisphere ManagerGUI

- Discover, Monitor, Apply and Provision,Report.

Navisphere CLI

Navisphere SuiteNavisphere manager,Navisphere Analyser, Navisphere Agent.


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Raid Groups

Collection of physical drives from which an administratormay bind one or more luns.

All Drives in a Raid group share the same raid type

May include disks from any enclosure.

Drive Types cannot be mixed.


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Creating a Raid Group


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Luns

LUN is a Logical Unit

When presented to a host it is assigned a

Logical Unit Number and it appears to the host

as a disk drive Process of creating a lun is called Lun Binding.

Upto 128 Luns in a Raid group

Upto 2048 Luns per clariion array All LUNs in the RAID Group have the same

RAID type


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Binding a Lun


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Storage Groups

A container which have a

group of Luns assigned to

a server

A server can access only

the luns in the storagegroup to which it is

assigned

Access Logix software

limits the server access toluns through the storage

groups


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Creating a storage Group


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Powerpath

Host resident

software

Provides Multipathing

feature Load Balancing

Automatic path

Failover Maximum 32 paths to

a Logical Volume


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Replication Technologies

Local Replication

- Snapview snapshot

- Snapview clone Remote Replication

- Mirrorview/S

- Mirrorview/A- SAN Copy


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MetaLUNs are LUN objects created from multiple, smaller LUN objects. The intent of a metaLUN is

to provide dynamic expansion of a hosts capacity without forcing the host to integrate another LUN

at the operating system.

Navisphere Manager simplifies and

automates the management of the storage

infrastructure.

Navisphere Analyser allows the

investigation of performance and trends.

PowerPath offers multi-path access

between CX arrays and attached servers,

and also dynamically balances the I/O load over all channels.

SnapView creates point-in-time snapshots

and full-copy clones of production data for

faster backup and restore operations.

MirrorView performs remote data

mirroring for data protection and application recoverability in the event of

disaster.

SAN Copy enables high-speed data

copying between multi-vendor storage

arrays.

Documents

Clariion Foundations