HP 273914-B21 - Smart Array 6404/256 RAID Controller Technology Brief

technology brief, 3rd edition HP Smart Array Controller technology technology brief, 3rd edition Abstract.............................................................................................................................................. 3 Introduction........................................................... ...

Selection criteria for battery-backed cache .................................................................................... 19 Types of batteries ................................................................................. ...

how Smart Array technology meets administrators’ requirements for capacity growth, high performance, data availability, and manageability. Introduction In today’s networking environments, administrators face difficult online data storage probl ...

The HP Smart Array controller family has an advanced intelligent architecture developed with a feature set that specifically addresses today’s network data storage requirements: • Capacity growth — Administrators can expand server storage capacity while the server is operating. The HP online Array Configuration Utility ...

Source Target Lane 1 Send Lane 1 Receive Lane n Send Lane n Receive Source Target Lane 1 Send Lane 1 Receive Lane n Send Lane n Receive Max. bandwidth (Send or receive) Total (Send and receive) Link size PCIe 1.0 PCIe 2.0 PCIe 1.0 PCIe 2.0 x1 250 MB/s 500 MB/s 500 MB/s 1 GB/s x4 1 GB/s 2 GB/s 2 GB/s 4 GB/s x8 2 GB/s 4 GB/s ...

cabling bundles all four lanes together. SAS wide ports allow balanced SAS traffic distribution across the links for enhanced performance. In addition, wide ports provide redundancy by tolerating up to three physical link failures while maintaining the ability to ...

Mini SAS 4x connectors and receptacles (Figure 2) are replacing SAS 4x connectors and receptacles in present generation Smart Array controllers. The ground pins in Mini SAS connectors can be used for power in active cables. Figure 2. The Mini SAS 4i connector (left) and receptacle (right) are replacing SAS 4x conn ...

With advanced read-ahead and write-back caching capabilities, the Smart Array controller cache module produces significant performance improvements for I/O operations. Read-ahead caching The HP Smart Array controller family uses an intelligent read-ahead algorithm that can anticipate data needs and reduce wait time. It can detect sequen ...

Smart Array controllers allow administrators to adjust how the cache is distributed for write-back and read-ahead operations. Administrators can configure the cache module for optimal performance for any storage need. The default setting for most present generation Smart Array controllers configures the cache for 75 percent write-back ope ...

RAID 50 and 60 methods stripe the data across multiple RAID/JBOD sets with different levels of parity. These nested RAID types allow users to configure arrays across HP Modular Smart Arrays (MSAs). RAID 50 (RAID 5+0) is a nested RAID method that uses RAID 0 block-level striping across RAID 5 arrays with distributed parity. RAID 50 will ...