1 / 54

Storage connectivity and options

Storage connectivity and options. Unit objectives. After completing this unit, you should be able to: List the internal storage options for the blade server Select the appropriate I/O switch module for external storage access List the components required for Fibre Channel connectivity

yosefu
Télécharger la présentation

Storage connectivity and options

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Storage connectivity and options

  2. Unit objectives After completing this unit, you should be able to: • List the internal storage options for the blade server • Select the appropriate I/O switch module for external storage access • List the components required for Fibre Channel connectivity • Select the components required for Fibre Channel boot from SAN • Describe the functions implemented on the iSCSI expansion card

  3. Internal storage Fibre Channel iSCSI SAS Boot from SAN Storage options for BladeCenter: Internal storage

  4. Common components: Storage • Hard drives • SAS • SATA • SCSI • Hot swap on selected blade servers • RAID (0,1) • Solid state disk (SSD) • Modular flash drive Solid State Disk (SSD) Modular Flash Drive Hard Disk

  5. Common components: Storage configurations Two internal hard drives, front-mounted hot swap Two internal hard drives, non-hot swap Modular Flash Drive

  6. IBM expansion blades: Storage and I/O RAID 5 (optional battery cache) Storage and I/O Expansion Blade I/O Expansion slot I/O Expansion slot Blade expansion connector Three SAS hot-swap hard drive bays IBM Blade (HS21, LS21, or LS41) Storage and I/O Expansion Blade Assembly

  7. Storage options for BladeCenter: Fibre Channel • Internal storage • Fibre Channel • iSCSI • SAS • Boot from SAN

  8. Fibre Channel components: Expansion cards • IBM BladeCenter Fibre Channel expansion cards • Provide blade server connectivity to remote storage • BIOS support for boot from SAN • Provide multi-port redundancy 1. Blade Server 2. Fibre Channel Expansion Card

  9. Fibre Channel expansion cards: QLogic • QLogic Fibre Channel expansion card models • 8 Gb CIOv form factor • 4 Gb CIOv form factor • 4 Gb SFF form factor • 4 Gb CFFv form factor • QLogic combination Fibre Channel and Ethernet models • 8 Gb CFFh form factor • 4 Gb CFFh form factor QLogic 4Gb Ethernet and FC CFFh Card QLogic 8Gb Ethernet and FC CFFh Card QLogic 8Gb FC CIOv Expansion Card QLogic 4Gb FC CIOv Expansion Card QLogic 4Gb FC CFFv Expansion Card

  10. Fibre Channel expansion cards: Emulex • Emulex Fibre Channel expansion card models • Emulex 8 Gb Fibre Channel expansion card • Two 8 Gb ports • CIOv form factor • Emulex 4 Gb Fibre Channel expansion card • Two 4 Gb ports • CFFv form factor Emulex 8 Gb FC Expansion Card (CIOv) Emulex 4 Gb FC Expansion Card (CFFv)

  11. Fibre Channel storage components: Switch I/O modules • IBM BladeCenter Fibre Channel Switch I/O Modules • QLogic 20-port 8 Gb SAN Switch Module • QLogic 10-port and 20-port 4Gb SAN Switch Module • Brocade 10 and 20 port SAN Switch Module • IBM BladeCenter Fibre Channel Pass-Thru I/O Modules • QLogic Intelligent 8 Gb Pass-Thru Fibre Channel Module • QLogic Intelligent 4 Gb Pass-Thru Fibre Channel Module 3. BladeCenter Chassis 4. Fibre Channel Switch I/O Modules

  12. Definition of 10-port and 20-port For the 10-port offerings, each switch module has three external ports enabled and seven internal ports enabled Blade Bay 1 Blade Bay 2 Blade Bay 3 Blade Bay 4 Blade Bay 5 Blade Bay 6 Blade Bay 7 Internal Parts For the 20-port offerings, each switch module has all six external ports enabled and all fourteen internal ports enabled Internal Parts Blade Bay 1 Blade Bay 2 Blade Bay 3 Blade Bay 4 Blade Bay 5 Blade Bay 6 Blade Bay 7 Blade Bay 8 Blade Bay 9 Blade Bay 10 Blade Bay 11 Blade Bay 12 Blade Bay 13 Blade Bay 14

  13. QLogic 10 and 20 Port FC switch modules • QLogic 8 Gb SAN Switch I/O Module • 20 Ports (14 internal, 6 external • Supports 2, 4 and 8 Gb speeds • QLogic 4 Gb SAN Switch I/O Module • Affordable 10-port and 20-port offerings available - ideal for Small, Medium and Enterprise business needs • Easy-to-use software upgrade doubles 10-port switch connectivity to 20-ports for on demand scalability • Included with every switch, QLogic's SANsurfer Management Suite eases installation, configuration and management of your SAN infrastructure all from one GUI

  14. QLogic intelligent pass-thru Fibre Channel modules • QLogic 8 Gb and 4 Gb Intelligent Pass-Thru Modules • 20 port modules provide standards-based NPIV interface • Zoning and LUN Masking • Alternative to traditional optical pass-thru • 6 External auto-sensing ports • 14 Internal auto-sensing ports

  15. Brocade 10 and 20 port Fibre Channel switch module • 1, 2 and 4 Gigabits per second bandwidth • Automatic failover support • 10-port and 20-port • Non-disruptive upgrade from 10-port switch connectivity to 20-ports • Utilizes Brocades Silkworm and interoperable with Silkworm and IBM TotalStorage b-type SAN switches

  16. Managing the Fibre Channel switch modules

  17. Interaction with the management module • The switch interacts with the Blade Center Management Module via an Inter-Integrated Circuit (I2C)* device to transfer Vital Product Data (VPD) • User can perform “write erase” using the “reset to factory defaults” control on the MM’s GUI. • User can disable ALL external ports via the MM GUI. • The switch can be power cycled via the MM’s GUI. • The switch provides some information to the MM. • Temperature alarms • Switch name • Port License State • SFP information • POST status • URL to launch the Device manager

  18. BladeCenter AMM Interface: Admin/Power/Restart

  19. BladeCenter AMM interface: Configuration

  20. Establishing a remote session The default IP addresses and commands to open a Telnet command-prompt session open are: • For the switch module in I/O bay 3: • telnet 192.168.70.129 • For the switch module in I/O bay 4: • telnet 192.168.70.130

  21. SAN Browser for the QLogic switch module • SAN Browser graphical (Java) user interface: • Allows for viewing and configuration Ports, Zoning and Network (including SNMP alerting) settings. • Troubleshooting through Diagnostic functionalities • Multiplatform support: • Requires 128 MB RAM, 150 MB of disk space for installation, 300 MHz CPU and either Microsoft Internet Explorer or Netscape Navigator • ANSI Command Line Interface • Telnet directly onto IP address of the module • Functionally equivalent to the Java application

  22. SAN Browser topological view Switch Icons appear in the Graphic Window Fabric Tree Data Window Tabs for different displays Data Window

  23. Switch Name Status Data Window Tabs for different displays SAN Browser faceplate

  24. SAN Browser zoning • Zoning can be accomplished from Enterprise Fabric Connectivity Manager (EFCM) for the Switch Modules • Since Zoning is a Fabric Service, it can also be managed from EFCM

  25. SAN Browser functions

  26. Establishing a Web interface session for Brocade To establish a Web-interface session through a Web browser, open a supported Web browser on the network-management workstation and type one of the following default IP addresses in the Web address field and press Enter. • For I/O bay 3: http://192.168.70.129 • For I/O bay 4: http://192.168.70.130 The I/O-module Advanced Web Tools interface window will then open.

  27. Brocade switch administration To access the Switch Admin window: • Select the desired switch from the Fabric Tree. The selected switch appears in the Switch view. • Click the Admin icon from the Switch view. The login dialog box displays. Enter the admin user name and password. • Click the desired tab.

  28. Brocade switch zone administration To Create a Zone • Click Create • The Create New Config dialog box appears • Enter a name for the new configuration and click OK • Click on “+” signs in the Member Selection List to view the nested elements • Highlight an element in the Member Selection List that you want to include • Click Add Member to add configuration members.

  29. Configuring the expansion card • Boot the blade server. • Press Ctrl+Q to enter the BIOS configuration utility. • Select the first Fibre Channel adapter port (port 1 correlates to the top Fibre Channel Switch in slot 3 of the BladeCenter chassis). • Select Configuration Settings and Host Adapter Settings.

  30. Fibre Channel storage components: Disk systems • IBM BladeCenter Boot Disk System • IBM System Storage DS3400 • IBM System Storage DS3200

  31. Storage options for BladeCenter: iSCSI • Internal storage • Fibre Channel • iSCSI • SAS • Boot from SAN

  32. iSCSI: Internet SCSI (Small Computer System Interface), SCSI commands sent across a network in TCP/IP packets. It was developed as a storage networking standard for linking data storage facilities Initiator: System making the iSCSI requests for data Target: System receiving the iSCSI requests for data What is iSCSI?

  33. The iSCSI expansion card offers a connection to an iSCSI storage device, via iSCSI host connections, to leverage the available standard Ethernet infrastructure to offer storage area network (SAN) solutions iSCSI expansion card overview Blade Server iSCSI Storage Device Via TCP

  34. Internal storage Fibre Channel iSCSI SAS Boot from SAN Storage options for BladeCenter: SAS

  35. SAS Expansion Card Configurable SAS device Form factor CFFv card Enables Boot from IBM BladeCenter Boot Disk System Connects through SAS I/O Modules in module bays 3 and 4 SAS Connectivity Card Uses SAS controller ports on Blade server Form factor CFFv Connects through SAS I/O Modules in module bays 3 and 4 IBM BladeCenter storage: SAS expansion cards SAS Expansion Card SAS Connectivity Card

  36. IBM BladeCenter storage: SAS connectivity module • Provides SAS connectivity from Blade server SAS expansion card to external SAS storage • 14 Internal connections to BladeServer blade bays • 4 External connections to SAS infrastructure Sample connection using dual SAS Connectivity Modules IBM BladeCenter SAS Connectivity Module

  37. 3 Gbps Serial Attached SCSI (SAS) host interface and drive expansion technology Combination of 12 SAS or SATA 3.5" drives per enclosure Scalable to 5.4 TB of storage IBM BladeCenter storage: DS3200 SAS controller IBM DS3200 IBM DS3200 Rear Chassis, Dual SAS Controllers

  38. Internal storage Fibre Channel iSCSI SAS Boot from SAN Storage options for BladeCenter: Boot from SAN

  39. Booting from SAN Boot LUN Blade Server

  40. Benefits to booting from SAN • Improving disaster tolerance If a server becomes faulty, unavailable or compromised, it can be swapped out for a new server with the same configuration, without having to: • Reconstruct the booting, operating and application environments for the new machine when it is most urgently needed. • Swap out hard drives, reconfigure arrays, and restore data and applications from backup. • The ability to replace and add servers in minutes provides a significant return on investment (ROI) by preventing lengthy downtime of core servers. • Enabling centralized administration • Reducing TCO through diskless servers • Using high availability (HA) storage ensuring business continuance

  41. Implementation considerations of booting from SAN • The server must have an FC HBA equipped with a boot BIOS that can support booting from the storage device attached to the SAN • Typically the host needs to have a boot order of CD-ROM, diskette, and then drive 0 • The SAN must be installed and configured, and the storage visible to the host • The storage system must have at least one available LUN for booting the server(s) • The storage must be configured to allow the server exclusive access to the LUN; access is typically assigned via the FC HBA’s WorldWide Port Name (WWPN) on the storage • To minimize data interruptions between hosts, it is best to keep hosts separated from each other by way of zoning to minimize the Registered State Change Notification (RSCN) interruptions

  42. Booting from SAN: Creating the LUNs • Create an array • Create a logical drive (LUN) • From the blade, broadcast the WWPN • Map the LUN to the host via the WWPN • Assign the Boot LUN to HBA Port A • Install the operating system 9 GB Logical Drive 18 GB 18 GB 18 GB Array A (RAID 5)

  43. SAN Zoning provides partitioning of resources Zoning is done at the fabric switch level Zones can be created at port level HBA Switch SAN Controller Zones can also be created at the WWN level HBA Switch SAN Controller Booting from SAN: Zoning the switch Zoning by WWN Zoning by Port

  44. Configuring the expansion card BIOS • Boot the blade server. • Press Ctrl+Q to enter the BIOS configuration utility. • Select the first Fibre Channel adapter port (port 1 correlates to the top Fibre Channel Switch in slot 3 of the BladeCenter chassis). • Select Configuration Settings and Host Adapter Settings.

  45. Broadcasting the world wide name (WWN) In order for the storage device to see the HBA ports, you need to open the port by doing a Scan Fibre Devices. Do this for both ports.

  46. Mapping the logical drive to the WWN

  47. Assign the boot LUN to an HBA port We want to assign the boot LUN to port B also, but we will disable this path during the initial OS installation

  48. You must use the Fibre card Driver diskette during the installation phase (press F6 for boot disk during install) During the POST sequence notice the following text:Drive letter C: is moved to the Drive letter D: Loop ID 129,0 is installed as Drive C: This indicates that the blade is now booting from the LUN 0 associated to the first HBA adapter Installing the operating system

  49. Key words • Access Control List (ACL) • Basic Input/Output System (BIOS) • Boot from SAN • Fibre Channel • Fabric • Just a bunch of disks (JBOD) • InfiniBand • Internet Small Computer System Interface (iSCSI) • Logical Unit Number (LUN) • Serial-attached SCSI (SAS) • Small Computer System Interface (SCSI) • Small Form Factor (SmFF) • Standard Form Factor (StFF) • Storage Area Network (SAN) • Zoning • LUN masking • World Wide Name (WWN)

  50. Checkpoint (1 of 2) • True/False: Blade server local disk options include hot-swap capability. • To enable fibre channel (FC) SAN connectivity, which of the following statements is true? • The BladeCenter chassis must have a fibre channel controller installed in I/O bay 2 • Internal cabling must be performed from the Blade server to the fibre channel switch • The Blade server fibre channel expansion card (HBA) World Wide Name (WWN) must be known to the external fibre channel controller • The BladeCenter Ethernet Switch I/O module must be connected to the external fibre channel controller • True/False: The QLogic iSCSI TOE Expansion card contains an iSCSI Initiator

More Related