IBM 32H3816 manual RAID-5

Page 68

SSA RAID Adapter Installation and User's Guide.

RAID-5

C.2.3 RAID-5

RAID-5 arrays write strips of data across all but one member of the array. Parity for the other strips is written on the last member. The members of the array are used in rotation for the parity data.

RAID-5 arrays offer data protection , good throughput, and require fewer disks than RAID-1.

_ Copyright IBM Corp. 1996

C.2.3 - 1

Image 68
Contents Cover Book Cover Document Number S32H-3816-00 Part Number 32H3816Product it supports, be Edition Edition Notice Contents Table of Contents FRONT1 Safety Information Safety Information Copyright IBM Corp FRONT1 SSA RAID Adapter Installation and Users Guide Preface About This Book PREFACE.1 How This Book Is Organized PREFACE.2 Related Publications Introducing the SSA RAID Adapter SSA Adapter Card RAID Operating Systems Before Installing the Adapter Installation Requirements Installing an SSA RAID Adapter Installing the Adapter Card Connecting the Disk Drives Configuring the Disk Drives Installing an Operating System Installing the Device Drivers and Utility Programs Selecting Your Boot Device Configuring SSA Subsystems Running the Configuration Utility VyymmddAccepting New Disk Drives Creating an Array Service Aids Vyymmdd XX Version Main M+ Bus Device Y Adapter New Disks RAID-0 Arrays Free ResourList of RAID-X Arrays Non-VolaArray name Status Serv BusMain M+ Bus + Q Rej SNon a Hot aSSA RAID Adapter Installation and Users Guide Attaching Resources Main Menu New Disks List of System ResourcesSystem ResoSSA UID/Array Name Status F1 Help F9 FlashOnCANUID111 Dealing with Disk-Array Problems Basic Problems Array Problems Disk Service Aids New Disks Link F3 Certify ServiceMode F5 Diagnostics F9 FlashOnChanging Failed Disk Drives BlankSSA RAID Adapter Installation and Users Guide Performing Other Disk-Array Tasks Defining a Hot Spare Select Hot-spare disksSSA Configurator and Service Aids Vyymmdd Version Main M+ List of Hot-spare DisksNo1 Ho2Viewing the Physical Configuration Viewing Resources and Their Attributes Attr1aaaa Main Menu New+Fre View Physical Disk Sys+ Changing Array Attributes View Adapter VPD Disk Service Aids Escape Exit Enter Select Device Y Slot Z Adapter New Disks RAID-0 Arrays Free ResourRAID-5 a List of RAID-X Arrays Xxxxxxxx Yyyyyyy Abou BusExchanging a Member of an Array Escape Exit Enter Select F1 Help F9 FlashOn F10 FlashOffView RAID-X Arrays System Res+ Candidates for RAID-X ArraysUIDxxxxx Status SSA Adapte AttDeleting an Array FF00xxxx Qqqqqqq Getting the Latest Information U.S Canada Markham Montreal TorontoAppendix A. Multiple-Adapter Installations Appendix B. SSA RAID Adapter Service Request Numbers Failed 41064 a 64 MB Dram module Not exchange any Dram Modules yetSSA RAID Adapter Installation and Users Guide SSA adapter microcode has Call for service Hung DffffSSA Loop Configurations that Are Not Valid Appendix C. Introducing SSA and RAID Subtopics Serial Storage Architecture SSA RAID FunctionsSerial Storage Architecture SSA Subtopics SSA Loops and Links Rules for SSA LoopsSSA Loops and Links Subtopics Loops and Data PathsLoops and Data Paths SSA RAID Adapter Installation and Users Guide Loops and Data Paths Copyright IBM Corp 1.1 Rules for SSA Loops RAID Functions Subtopics RAID-0 RAID-1 RAID-5 Hot Spares Disk Array StatesRAID-0 RAID-1 RAID-5 Hot Spares Disk Array States Good State Exposed State Degraded State Rebuilding State Offline State Appendix D. Product Warranty and Notices Warranty Period* Three years Machine SSA RAID Adapter for PC ServersProduction Status IBM Warranty Warranty Service Extent of Warranty Limitation of Liability SSA RAID Adapter Installation and Users Guide IBM Communications Statements Federal Communications Commission FCC Statement Radio interference. VCCI-1 Vcci StatementThis equipment is Type 1 Data Processing International Electrotechnical Commission IEC Statement Avis de conformité aux normes de lIndustrie Canada Industry Canada Compliance Statement United Kingdom Telecommunications Requirements EC Council Directive Radio Protection for Germany HinweisGood state C.2.5.1 Hot spares defining 5.1 function C.2.4 Information, latest 6.0 information, more 6.0 installing Installing Write while exposed C.2.5.2

32H3816 specifications

The IBM 32H3816 is a notable component in the landscape of computing hardware, particularly designed for high-performance applications within IBM's extensive lineup of server and storage solutions. This specific model serves as a memory module, contributing significantly to the operational efficiency and performance capacity of various IBM systems.

One of the main features of the IBM 32H3816 is its substantial memory capacity, typically offering up to 16GB of RAM. This amount of memory is crucial for handling large datasets and running multiple applications simultaneously, making it ideal for enterprise-level servers, databases, and virtualization environments. The module's capacity supports the growing demands for resource-intensive applications, setting a foundation for better multitasking and system responsiveness.

Another key characteristic is its memory type, which is DDR3 SDRAM. This technology provides faster data transfer rates compared to its predecessors, ensuring a smoother and more reliable performance. DDR3 allows for improved bandwidth, enabling quicker access to data stored in memory. Its lower power consumption is also a significant advantage, making the IBM 32H3816 a cost-effective choice for businesses looking to optimize energy usage while maintaining high performance.

The memory module is designed with advanced reliability features, such as ECC (Error-Correcting Code) capability. ECC ensures that data integrity is maintained by detecting and correcting common types of internal data corruption. This feature is particularly important for mission-critical applications where data accuracy is paramount. Users can expect enhanced stability and reduced risk of system crashes that could lead to data loss.

IBM has engineered the 32H3816 with temperature and voltage tolerance in mind, which makes it suitable for use in various server configurations. These characteristics ensure that the module functions optimally even in challenging environments, thus prolonging its lifespan. The compatibility with multiple IBM server models also adds to its versatility, enabling businesses to upgrade existing systems seamlessly.

In conclusion, the IBM 32H3816 memory module stands out for its robust capacity, advanced technologies, and reliability features. It is an essential component for organizations requiring high-performance computing solutions, offering a blend of efficiency, speed, and stability. With the ongoing evolution of IT demands, investing in quality memory modules like the IBM 32H3816 can significantly enhance overall system performance and productivity.