Hitachi 9900 Series, 9960 manual Hitachi Data Systems, Hitachi CruiseControl

Hitachi Data Systems

Hitachi Virtual Logical Volume Image Manager improves performance.

Hitachi FlashAccess™ dramatically improves performance.

Hitachi CruiseControl ™ automatically monitors, analyzes and moves logical volumes to eliminate “hot-spots.”

Hitachi LUN Manager also features logical unit size expansion that dramatically improves LUN flexibility. Up to 36 physical LUNs can be presented to the operating system as a single, large LUN. This capability simplifies storage management because there are fewer LUNs to manage. Two levels of password protection, user and administrator, ensure maximum data security. Users can view only Lightning 9900™ LUN configuration information, while administrators can access all LUN configuration information and functions. Administrators can customize access privileges for individual users, thus providing maximum flexibility and control of Hitachi LUN Manager capabilities.

Hitachi Virtual Logical Volume Image Manager allows very large to very small virtual volume configuration

Hitachi Virtual Logical Volume Image Manager is a mainframe software utility that optimizes Lightning 9900™ capacity utilization by allowing users to configure multiple virtual LVIs in place of a LVI. Data volumes as small as a single cylinder or as large as a full 3390-9 can be defined. Volume size is determined in cylinder increments. Each virtual LVI requires one physical address, with a maximum of 4096 addresses per Lightning 9900™ system. Different types of LVIs can coexist within an array group with no need to convert them to a common LVI. This feature maximizes array group capacity and enhances configuration flexibility. Hitachi Virtual Logical Volume Image Manager improves performance by reducing logical device contention and operating system queuing. It

also boosts remote copy performance by avoiding the need to copy the entire volume.

Hitachi FlashAccess™ allows data to be “locked and unlocked” in cache on-the-fly

Hitachi FlashAccess™ is a software utility that allows users to dynamically “lock” and “unlock” data into cache in real time. Read and write functions are then performed at cache speeds, with no disk latency delay. With Hitachi FlashAccess™, a portion of cache memory can be allocated to specific data. Users can add, delete, or change Hitachi FlashAccess™ managed data at any time quickly and easily.

Defined by the Logical Volume Image (LVI) for mainframes or Logical Unit Number (LUN) for open systems, cache data can be as small as a single track or as large as an entire volume. For increased configuration flexibility, Hitachi FlashAccess Manager™ offers multiple modes of operation. It can be used in conjunction with Hitachi RapidXchange™ to increase the speed of data transfer and, therefore, improve performance of mainframe to open systems data exchange. Hitachi RapidXchange™ offers high-speed data transfer among OS/390®, UNIX®, and Windows NT/2000® platforms. Hitachi RapidXchange™ transfers can be open-to-open as well as mainframe-to-open.

Hitachi CruiseControl™

For open systems and S/390 volumes, Hitachi CruiseControl™ provides automatic performance tuning for Lightning 9900™ Series products by automatically eliminating performance bottlenecks. Utilizing the Lightning 9900™ many high-speed internal paths to optimize data placement CruiseControl™ automatically monitors, analyzes and moves logical volumes to eliminate “hot-spots” and provides load balancing to maintain predetermined performance levels. Independent of the type of host attachment, the CruiseControl™ makes recommendations for administrator approval in either automatic or assisted mode. CruiseControl™ replaces time-consuming and sometimes error-prone manual load balancing with simple automated procedures. This ensures long-range optimal performance and reduced cost of ownership.

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