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Transcript of ISCSI Mark Gonnelly Technical Trainer ATT [email protected] Jeff McMurdie Technical Trainer...
![Page 1: ISCSI Mark Gonnelly Technical Trainer ATT mgonnelly@novell.com Jeff McMurdie Technical Trainer CNI/ATT jmcmurdie@novell.com Mitchell Smith Sr. Technical.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649e5c5503460f94b54a1a/html5/thumbnails/1.jpg)
iSCSIMark GonnellyTechnical Trainer [email protected]
Jeff McMurdieTechnical Trainer CNI/[email protected]
Mitchell SmithSr. Technical Trainer CNI/[email protected]
Shawn HoopesTechnical Trainer [email protected]
![Page 2: ISCSI Mark Gonnelly Technical Trainer ATT mgonnelly@novell.com Jeff McMurdie Technical Trainer CNI/ATT jmcmurdie@novell.com Mitchell Smith Sr. Technical.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649e5c5503460f94b54a1a/html5/thumbnails/2.jpg)
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Opening the door to Web services
Novell exteNd™
Securely getting the right information to the right people
Novell Nsure™
The best foundation for your mixed environment
Novell Nterprise™
The experience to solve your business problems
Novell Ngage
Novell Ngage services combine
the real-world experience and
knowledge of business
management consultants around
the world to make sure every
Novell solution you implement
is based on best practices,
customized to meet your needs,
and capable of delivering the
highest possible return on
investment.
Novell one Net vision
SM
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Agenda
Storage Trends• DAS (Direct Attached Storage)• NAS (Network Attached Storage)• SAN (Storage Area Network)
1
Benefits of NetWare® as a storage platform2
iSCSI the solution for testing and training Clustering
3
Configuring iSCSI storage – Demo4
Installing Novell Cluster Services™ (NCS) – Demo5
Creating and migrating Cluster resources - Demo 6
Novell ATT courses7
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• Companies are detaching storage from servers to manage escalating storage needs
• This means deploying NAS and SAN technologies
• Storage area networks and network attached storage require 75% less personnel to maintain than traditional direct attached storage
Storage Today—DAS, NAS, and SAN
Direct Attached Storage (DAS)
Windows NT/2K
Linux/UnixNetware
Network Attached Storage (NAS)
Windows NT/2K
Linux/UnixNetware
Storage Area Network (SAN)
Netware
Windows NT/2K
Linux/Unix
Storage
FC Switch
NAS
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The Problem with DAS
Direct Attached Storage (DAS)
Data is bound to the server hosting the disk
Expanding the storage may mean purchasing and managing another server
Storage is often provisioned badly
In heterogeneous environments, management is complicated
Windows NT/2K Linux/UnixNetware
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NAS Issues
Network Attached Storage (NAS)
Each appliance represents a larger island of storage
Data is bound to the NAS device hosting the disk and cannot be accessed if the system hosting the drive fails
Storage is labor-intensive and thus expensive
Windows NT/2K Linux/UnixNetware
NAS
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Benefits of SANs
Storage Area Network (SAN)
Server Consolidation
Storage Consolidation
Storage Flexibility and Management
LAN Free backup and archive
Modern data protection (change from traditional tape backup to snap-shot, archive, geographically separate mirrored storage)
Windows NT/2K
Linux/Unix
Netware SAN Switch
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Storage Area Networks (SANs)
• Result of applying core networking principles to storage
• Retains the flexible topologies, scalability and dynamic behavior of networks
• Servers are attached to 2 distinct networks• Back-end – servers connect to storage devices
• Servers become clients of storage devices• Front-end – Unchanged LAN
• Clients see the SAN as DAS (Direct Attached Storage)
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Key Benefits of NetWare 6 as a Storage Platform
Totally scalable, high-performing, feature-rich, distributed SAN file system: Novell Storage Services™ (NSS)
• Up to 8 TB volumes (no limit to the number of volumes)
• Journaling• Compression• Open file backup support• Mirroring and striping• Disk quotas• Volume pooling and junctions• High integrity volumes-flush cache on close• Shared disk support for better SAN integration• XML-based management infrastructure
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• Novell clients (NCP)
• Windows clients (CIFS)
• Unix clients (NFS)
• Macintosh clients (AFP)
• Web and Internet clients (HTTP, HTTPS, FTP, and WebDAV)
Key Benefits of NetWare 6 as a Storage Platform (cont.)
Native support for all major client access methods
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• Up to 32 servers in an all-active cluster• Fan-out failover for load balancing on failover• Transparent failover• Enhanced cluster resource management• Integrated with eDirectory™• Intelligent cluster volume operations• Built in cluster volume manager allows for
dynamic volume changes in the SAN without rebooting any servers
Key Benefits of NetWare 6 as a Storage Platform (cont.)
Highly-scalable, load-balancing, directory-enabled clustering environment
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• General purpose backup for all SAN data
• No more zoning off portions of the SAN for specific operating systems
• No need to learn and deploy multiple clustering solutions
• No more mis-provisioned disks on servers or NAS devices
Novell Cluster Services
Windows NT/2K App Server
Linux/Unix App Servers
Windows, Mac, Unix, and Novell
clients
NetWare 6 Storage Area Network (SAN)
Netware6 Cluster
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So, get a SAN!
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NTS problem
We can’t teach a clustering course on enterprise equipment because the hardware is too expensive and too heavy.
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iSCSI to the rescue
• Any computer that meets NW6 hardware requirements can become a SAN storage device
• Use existing servers as your shared storage. iSCSI can run as an additional service.
• iSCSI on Gigabit Ethernet Hardware is a fraction of the cost of a full Fibre Channel SAN solution.
• iSCSI is slower but even cheaper on 100 Mb.
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Before and After
BEFORE950 LB server rack
for 12 students
AFTER4 laptops and a hub for 2 or 3 students
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iSCSI Software Stack
• Target (storage server) appears as local storage device to Initiator(s)
• Initiator(s) are storage clients that connect to the target server
Target Initiators
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iSCSI Software Stack
iSCSI Target:
iscsinit.nlm Initiator controlleriscsiham.ham NetWare HAM driverion.ncf, Batch file to load initiator
ioff.ncf Batch file to unload initiator
iSCSI Initiator:
iscsitar.nlm Target controllerTon.ncf Batch file to load target
Toff,ncf Batch file to unload target
iscsilib.nlm iSCSI common functionsiscsinrm.nlm Novell Remote Manager pluginioctl.nlminterface functionsIscsixml.nlm XML interface modulered_flag.gif Novell Remote Manager
icons green_flag.gif yellow_flag.gif
iSCSI common files:
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iSCSI Target
Create a single iSCSI partition on target
machine.
Load iscsi target
(ton.ncf) on the target machine.
It will display the GUID of the iSCSI partition.
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iSCSI initiator(s)
• Load SCSIHD.CDM if not already loaded.
• Run ION.NCF (loads files)
• Use NoRM or command line to connect to Target (ip address)
• In NoRM, select Storage Services -> iSCSI Services. Click on the New Session button and enter the ip address of your target.
• Or at the command line, enter: iscsinit connect <ip address>
• View the available disk:• In NoRM: Manage Server->Volumes->Disk Partitions• Command line: list devices• ConsoleOne: Properties of server->media tab->devices
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• Initialize the iscsi disk, make it sharable & create an NSS partition using ConsoleOne® or NoRM.
• You don’t have to use all the space available.
• Create a Pool on your newly created partition.
• Create a volume(s) in your pool.
• If users will need file access Cluster Enable the Volume
• Chose access protocols - NCP, CIFS, AFP
• Mount the volume
iSCSI initiator(s) – (Continued)
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NoRM interface
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1 2 3
4 5 6
Demonstration
Loading Initiators
Connect to Target
Command line NoRM
Loading Target
Setting up iSCSI partition
Confirming all Initiators see
the target device
List Devices
ConsoleOne
Create Cluster Enabled Volume
Install Novell Cluster
Services
Create a Cluster
Resource
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ATT Courses
Novell Advanced Technical Training classeswww.novell.com/registernow/
Troubleshooting
• Advanced DirXML®
• Advanced NetWare 6
Services and
Troubleshooting
• GroupWise® 6.5
• ZENworks® for Desktops 4
(4 Day Course)
Deployment
• NetWare 6.5 First Class
• Novell Cluster Services
• Advanced eDirectory 8.7
• iChain®
• Novell Nsure Technical
Workshop
• ZENworks for Servers
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