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IBM System Storage™ Digital Media Storage Solution
Installation Guide
Selling and Deploying DS3000/DS4000/DS5000
in Apple and StorNext Environments
Con Rice
Modular Storage Product Specialist
LSI Corporation
12007 Sunrise Valley Drive, Suite 325
Reston, VA 20191
Cell: 703-867-0012
Tel: 703-262-5418
e-mail: con.rice@lsi.com
Digital Media Storage Solution Installation Guide
February 25, 2010
© Copyright 2010, IBM Corporation
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Contents INTRODUCTION ....................................................................................................................... 4 File Sharing Environments ..................................................................................................... 4 THREE CURRENT SOLUTIONS .............................................................................................. 5 Apple Homogenous...................................................................................
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Closing a Case ................................................................................................................. 16 MIGRATING FROM XSAN MDC TO STORNEXT MDC ...................................................... 17 ATTO ....................................................................................................................................... 18 ATTO HBA INSTALLATION ....................................................................................................
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INTRODUCTION There has long been a desire to support Apple servers and work stations with IBM DS series storage, and now we have that capability. But due to confusion in the past, we will be approving a very specific set of known, quality configurations. There are two basic aspects of these solutions: One is basic hardware connectivity, the second is the support for file sharing. It‟s important not to confuse the two. Basic hardware connectivity to Apple is supported via RPQ. File shari
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THREE CURRENT SOLUTIONS Apple Homogenous Apple Xsan Clients with Linux MDC (Meta Data Controller) (Apple can also be connected without Xsan/StorNext support) Linux Homogenous Linux StorNext Clients with Linux MDC Digital Media Storage Solution Installation Guide 5 © Copyright 2010, IBM Corporation. All rights reserved.
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Heterogeneous Apple Xsan Clients, Linux StorNext Clients, Windows Clients (June) and Linux MDC COMPONENT DESCRIPTIONS Apple Clients • Apple connection without StorNext/Xsan support, or • May use Apple Xsan Client software o If you use the Xsan clients and Xsan Meta Data Controller (MDC), then your support comes from Apple. However, if you use the StorNext MDC from Quantum, then Quantum will support the entire solution including the Xsan clients loaded on the Mac‟s. As you can see
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SAN Architecture must meet RPQ criteria • Limit number of paths for Xsan/StorNext clients to four • This is to limit both complexity and the amount of time required to initialize clients on the SAN • Redundant Meshed Fibre Channel SAN (cross-connected) • RDAC MPP supports this configuration • Some IBM documentation may seem to preclude this, but those documents are based on an old non-“mpp” version of RDAC • Limits cause for failover to Controller failure • Specific Firmware, softwar
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PLANNED SUPPORT ROLLOUT There are very specific capabilities that are being added and they are tied to specific hardware, software, and driver availability. Support will be added in this order: Apple Homogenous Apple Xsan Clients with Linux MDC (Meta Data Controller) (Apple can also be connected without Xsan/StorNext support) 1. Single Host Client connected to DS3000/DS4000/DS5000 Storage (NOW) a. Apple Leopard and Snow Leopard i. Using ATTO HBA‟s and multipathing driver b. Wi
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Linux Homogenous Linux StorNext Clients with Linux MDC 3. Multiple Linux Host Client connected to DS3000/DS4000/DS5000 Storage (NOW) a. RHEL/SLES using StorNext Client software i. Using previously supported QLogic and/or Emulex HBA‟s b. With StorNext MDC‟s running on RHEL/SLES i. Using previously supported QLogic and/or Emulex HBA‟s Digital Media Storage Solution Installation Guide 9 © Copyright 2010, IBM Corporation. All rights reserved.
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Heterogeneous Apple Xsan Clients, Linux StorNext Clients, Windows Clients (June) and Linux MDC 4. Mixed Host Apple and Linux Client connected to DS3000/DS4000/DS5000 Storage (NOW) a. Apple Leopard and Snow Leopard using Xsan Client software i. Using ATTO HBA‟s and multipathing driver b. RHEL/SLES systems using StorNext CLIENT software i. Using previously supported QLogic and/or Emulex HBA‟s c. With StorNext MDC‟s running on RHEL/SLES i. Using previously supported QLogic and/or E
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Planned Future Enhancements Additional Linux HBA choices and Windows Server 200x Meta data Controller 7. Expand RHEL/SLES connectivity choices (Planned) a. Add ATTO HBA‟s for either MDC‟s and/or clients using RDAC MPP i. This step is not tied to any other steps and may occur at any time after step 3 b. Add ATTO HBA‟s for either MDC‟s and/or clients using ATTO multipathing driver i. This step is not tied to any other steps and may occur at any time after step 3 8. Add Windows Server 20
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SOLUTION RESTRICTIONS AND RECOMMENDATIONS There are several important aspects to the configuring of the SAN that must be understood. The first is that the SAN design is architected to avoid logical drive failover in the storage subsystem. This is accomplished by employing a meshed fabric where each HBA on the server can see both controllers on the storage subsystem. The second aspect has to deal with access to the shared logical drives. There are three types of shared logical drives;
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RECOMMENDED RAID CONFIGURATIONS RAID RAID Array Segment Disk type level size size Journal 1 or 10 As required 256 FC or SAS recommended Meta Data 1 or 10 As required 256 FC or SAS recommended Journal and Meta Data may reside in separate LUN‟s carved from the same RAID Array if required in small implementations. However, the ideal condition is separate LUN‟s tied to separate RAID groups for Journal and Meta Data. If possible, these two LUN‟s should be on a different storage system th
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SOLUTION INSTALLATION 1. Use a meshed fabric with each HBA zoned to see both controllers but controllers unable to see each other. 2. Use RDAC or MPIO failover drivers as appropriate for your operating systems (ATTO for Apple). Do not use the StorNext failover driver 3. For Apple Clients a. Set host type LNXCLVMWARE b. Set TPGS On c. See script later in this document d. MAC‟s must use ATTO Celerity FC81-EN, FC82-EN, or FC-84-EN HBA‟s using the 1.3.1b12 driver Atto site http:/
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10. RAID 1 or 10 for Journal and Meta Data a. Multiple RAID 1 Groups would be preferable to a similarly size RAID 10 b. Placing Meta Data and Journal on a storage system separate from the data is preferable. 11. It is desirable to separate Meta data and Journal LUN‟s and access from the Data LUN‟s. a. In small installations, Meta data, Journal and Data can be different LUN‟s on the same RAID group b. However, it is best to separate MDC and Journal into their own RAID 1 RAID group. c.
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QUANTUM / APPLE JOINT PRODUCT SUPPORT PROGRAM Quantum / Apple Joint Product Support Program Overview QUANTUM and Apple have agreed to a cooperative support relationship for QUANTUM‟s StorNext and Apple‟s Xsan products. This means joint customers are assured that both companies will work together to resolve any technical issues with our respective products. Xsan Controlled SAN File System In the case of the joint customer having an Xsan controlled SAN fi
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MIGRATING FROM XSAN MDC TO STORNEXT MDC Q. Are there new features in Xsan 2.2 that make it harder to swap out XServe MDCs and replace them with StorNext Linux MDCs? A: “NamedStreams” is the Apple Xsan feature that causes some problems with StorNext. If you don‟t turn it on, you‟re fine. By default, “NamedStreams” is turned on. NamedStreams will make things like the basic StorNext command line copy command, cvcp, not work. Before Xsan 2.2, you could have it copy the “._” files, but n
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ATTO ATTO Technology, Inc. Value Proposition ATTO Technology is a leader in storage and connectivity solutions. In business since 1988, ATTO has maintained a consistent strategy of technical innovation by continually creating new and exciting Host Bus Adapter (HBA) products that are on the leading edge of the storage market. Throughout the years, ATTO has maintained a reputation for providing high-performance products in a variety of storage connectivity technologies for a wide vari
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Product Features Celerity HBA‟s FC84EN FC82EN FC81EN Fibre Channel Ports 4 2 1 Maximum Data Rate 8Gb 8Gb 8Gb Maximum Transfer Rate (Full Duplex) 6.4 GB/s 3.2 GB/s 1.6 GB/s Maximum Transfer Rate (Half Duplex) 3.2 GB/s 1.6 GB/s 800 MB/s Bus Type PCIe 2.0 PCIe 2.0 PCIe 2.0 Bus Characteristics X8 X8 X8 Optical Interface SPF+LC SPF+LC SPF+LC Maximum Cable Length 300m-2GB 300m-2GB 300m-2GB 150m-4GB 150m-4GB 150m-4GB 50m-8GB 50m-8GB 50m-8GB Low Profile Form Factor NO YES YES Advanced Da
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Multipathing is the ability to send I/O over multiple paths to the same LUN Failover and load balancing done on a LUN basis Monitors I/O paths – identifies changes in path status Automatic re-routing of I/O upon detection of an interrupted connection Failover/failback transparent to the OS or application Increase performance by sending data over multiple paths ATTO Config Tool Features Allows simple Setup for the user. This is critical as IT staffs in the digital video i
