SAN Management and Application

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SAN Management andApplication
2001. 9. 11
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Outline

• SAN Architecture and Model
• SAN Technology Trends
• SAN Management Architecture
• SAN Applications
• SAN File System
• SAN Standardization
• SAN Hot Issues
• Conclusion

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SAN Architecture

• Extract the value of data
• Backup / Recovery
• Outboard data movement
• Clustering, data sharing

SAN Application
SAN Management

• Zero latency, one-touch management
• Centralized local point
• Reduced cost
• Flexibility and automation

Services and Support
Solutions
SAN Interface

• Migration paths
• Investment protection
• Fibre channel
• Distance, speed, reliability
• Hubs, switches
• Any storage to any system

SAN Hardware Base Storage

• SAN from initiative to implementation
• Reduced time cost to implement
• Skilled resources
• SAN integration, testing, verification

• SAN-enabled
• Native attachments
• SAN-aware

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Storage Model
Application
File/record layer
Services
Block layer
Storage domain
Discovery, monitoring
Resource mgmt, configuration
Security, billing
Redundancy mgmt (backup, )
High availability (fail-over, )
Capacity planning
Storage devices (disks, )
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Storage Model Full function View
Application
File/recordlayer
Blocklayer
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Storage Model Multi-site Block Storage
Functions point-in-timecopy, caching, local
remote mirroring,
Application
Application
Host. with LVM
Host. with LVM
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Why Networked Storage?
Moores Law
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Storage and Network Convergence
Storage Networking
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Technology Trend Fibre Channel

• Fibre Channel provides new levels of Bandwidth,
  Connectivity, and Flexibility
• Switches provide non-blocking 100 MB/sec (1
  Gbit/sec) per port with any-to-any connectivity
• Long-wave ports provide up to 10 km distance
• Future Developments
• Large port-count switches ( 256)
• Fibre Channel has grown to 2 Gbit/sec
• 10 Gbit/sec in 2-3 years

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SAN Connectivity Evolution
DATA CENTER
FC -SW
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Conventional IT Organization
Network used for exchange of data
between clients and servers and between servers
themselves.
Difficult to manage, wasted resources, often
unprotected Impossible to scale
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IT Organization with Enterprise Storage
Network used for exchange of data
between clients and servers and between servers
themselves.
Enterprise Storage provides storage and exchange
of data by servers
Enterprise Storage
Simpler to manage, resources easily re-deployed,
superior protection. The next stage of
manageability and scalability
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IT Organization SAN
Data Presentation Information visualization using
HTML, Java, etc.
Clients
LAN
Client Network
NAS Appliance
UNIX
NT
Heterogeneous Servers
Data Logistics Information MoveBackup/RestoreInf
ormation Mgmt Cluster Support
Storage Area Network
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Why Networked Storage?

• Consolidation - Application Server and Storage
• Storage Consolidation
• Management - Total Cost of Ownership (TCO)
• Disaster recovery - Backup / Restore
• Availability
• 7 x 24 x Forever
• Flexibility
• Rapid adaptation of changes in business
  requirements
• Capacity Expansion
• Performance
• Configuration

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Shift in Customer Perceptions
New Paradigm
Historical View
1) IT saves dollars IT contributes to
revenue growth 2) Choose technology first
Put information needs first 3) Managing
technology Managing information 4)
Acquisition costs Total cost of
ownership 5) Rigid infrastructure
Change-tolerant infrastructure Technology /
Vendor lock-in Flexibility, compatibility
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SNIA Management Standards - 1999

• Common Information Model (CIM)
• Simple Network Management Protocol- Management
  Information Bases (SNMP-MIB)
• Reviewed and assisted in the standardization of
  two SNMP MIBS
• Fibre Alliance MIB in process within IETF
• Creation of new MIB for Storage Libraries (First
  MIB to use CIM schema)
• SNIA CIM schema definitions submitted for CIM
  V2.2
• Storage Media Library (SML WG)
• Disk Resource Management (DRM WG)
• Fibre Channel (FC WG)

• October 1999 Storage Networking World
• First demonstration of V2.2 CIM web based
  technology

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SNIA Management Standards 1st half 2000

• Education
• Release of the first Storage Networking
  Dictionary to the industry
• Successful completion of three major industry
  events
• The SNIA workgroup conference - Feb 2000
• Spring Storage Networking World - April 2000
• CIFS 2000 Conference and Interoperability Lab -
  May 2000
• Management

• Delivery of Industry first Open Source - CIM-OM
  (CIM-Object Manager)
• Disaster Recovery - Backup
• SCSI-3 extended copy command
• Submitted to ANSI T10
• Driving the NDMP version 4 development

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SNIA Management Standards 2nd half 2000

• Education
• The SNIA workgroup Symposium - Sept. 2000
• Vendor and IT Consumer Surveys
• Fall Storage Networking World 2000
• Architectural white papers
• Interoperability
• Continued Standardization of CIFS (Common
  Internet File System)
• Test plans and reference implementations for new
  and existing standards
• Management
• Adoption of the SNIA developed HBA-API by T11
• Management models for extended copy sessions
• MIBs and extensions to the CIM Schema for storage
  management
• Disaster Recovery
• APIs for snapshot and checkpoint

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SNIA Management Standards 2001

• Grand Opening of the SNIA Technology Center Jan
  01
• SNIA-Japan - SNW Japan Jan. 01
• SNIA Shared Storage Model March 01
• Spring Storage Networking World April 01
• Spring SNIA Work Group Symposium April 01
• Summer SNIA Work Group Symposium June 01
• SNIA CIFS Conference Aug 01
• European Storage Networking World Sept. 01
• Fall Storage Networking World USA Oct. 01

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SAN Management Architecture
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SAN Management Architecture EMS CMS

• EMS
• SNMP based service
• DMI based service
• FC service
• SES service
• Native CIM service
• CMS
• Entity mapping
• Common data model
• Access services

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SAN Management Open Standard Platform

• SCSI Instruction Set
• SCSI Enclosure Services(SES)
• SCSI Self-monitoring Analysis and Reporting
  Technology
• (SMART)
• SCSI Accessed Fault-Tolerant Enclosure(SAF-TE)
• SNMP
• Web-based Enterprise Management(WBEM)

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SAN Management
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SAN Application
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SAN Application - Remote Backup
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SAN Application - Server-Storage Clustering
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SAN Serverless Backup
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SAN Storage Integration
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SAN Storage Expansion FC-AL
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SAN Storage Expansion Fabric
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SAN Storage Expansion Multiple Loops
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SAN FC Workgroup
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SAN Recovery Server Clustering
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SAN Recovery HA clustering
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SAN Recovery Data Mirroring
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SAN File System

• SAN Support
• Customizability
• According to specific I/O requirement such as
  web, multimedia
• User-Controllability
• Users decide logical storage space, data format,
  fault tolerance,
• and recovery
• High Performance and Scalability
• Dynamic load balancing across all disks
• Hot system mode change
• Storage environment optimization according to
  I/O requirement
• High Availability
• Software RAID, Chained-Declustering, Fast
  Recovery
• Compatibility withexisting file system in API
  and access method

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SAN File System Requirement

• Mass Storageability
• Unlimited
• High Scalability
• Capacity, performance, connectivity, bandwidth,
  cost
• High Availability
• Duplex
• Online data backup
• Easy Manageability
• Effective central management and remote control
  through Internet
• High Utilizability
• Logical disk pool
• Load Balanceability
• Data migration through SAN

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SAN File System Structure
Application Software (Oracle, Word, Web Browser,
etc.)
System Call Interface
Process Management
IPC
Timer Function
Ext2 I/F
New I/F
Virtual File System
Memory Management
Networking
Buffer Cache
Device Driver
New Driver
Kernel
Hardware (Disk, Memory, CPU, Network Cards, etc.)

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SAN File System Products
SoftWorks
Target
IBM Tivoli
Veritas
Item
Unix/NT/VMS
Multiplatform
Unix/NT
Unix
O S
Native
New
NTFS/UFS
Native
File System
Low
High
No
Low
Tuning
Possible
Possible
No
Possible
Parallel I/O
Yes
Yes
Yes
Yes
SAN Support
Yes
Yes
Yes
Yes
Disk share
No
Yes
No
No
MPI-IO
Yes
No
No
No
Linux version
Yes
Yes
Yes
Yes
High Availability
SAN Support
FS Share SAN Support I/O Perf
FS Share SAN Support
SAN Support
Key Functionality
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Standard Collaboration

• DMTF WBEM (Web-Based Enterprise Mgmt), CIM
• ANSI T10 (SCSI) and T11 (Fibre Channel)
• IEEE Media management and tape
• IETF SNMP, IP SANs, IP storage,directories/LDAP
  and policy
• And others
• FCIA Fibre Channel Industry Association
• Fibre Alliance - SNMP MIB

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SAN Standardization - FC

• 1994 ANSI X3T11

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SAN Hot Issues

• Storage over Wide Area Networks
• SANs for Everyone
• Storage Services Providers
• Storage Management Applications
• Extended Copy for server-free data movement
• Host Adapter API for fibre channel management
• IP Storage technologies
• Fibre channel switch interoperability
• Infiniband

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SAN over WAN
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SAN for Everyone
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Storage Services Providers
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Storage Management
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IP Storage
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Switch Interoperability
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InfiniBand
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PCI vs IB
Characteristics PCI 2.2 PCI-X 1.0 IB
Speed 66MHz 133MHz/slot 2.5Gbps
Data width 32/64 bit 32/64 bit 1x, 4x, 12x
Max bandwidth 533Mbyte/sec 1,064Mbyte/sec 2.5Gbps/port
Connection Shared bus Shared bus Point-to-point
Max nodes Less than 10 1/133MHz 216/subnet
Communication Shared memory Shared memory Channel-based Message passing
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Conclusion - Trends

• Focus on the problem new technologies may
  solve/displace
• I/O bus vs. IP network vs. SCSI-based channel
  network
• Most of these new technology specifications have
  not been defined, much less adopted as standards

The Next Big Thing
10Gb FC
2004
iSCSI
EtherStorage
2003
DAFS
2Gb FC
2002
SCSI over IP
InfiniBand
2001
Storage over IP
10Gb Ethernet
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SNIA Vision
Technology Council 11 members
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SAN Milestone