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.