HP LH4r Ideal Applications to run with the HP Netserver LPr - Page 9

FXVWRPHUýXVDJHýJXLGH +3ý 1HW6HUYHUý /3U This section provides answers to a number of questions that many customers have raised during the process of selecting a server. Why does the HP NetServer LPr have only two internal disk drives? HP's goal in the design of this product was to make an ultra-compact, server to meet market needs for more compute power in less physical space. This server is small and affordable, designed to run as a dedicated server. The trade-off was between some expandability and the 2U-form factor, resulting in maximum rack density. For those customers who require more storage, external storage can be added with the HP Rack Storage/12, using an external SCSI connector or a RAID card. Low profile (3U-form factor) disks are available in capacities up to 18.2 GB. Why is only a single-channel controller offered? The main advantage of a dual channel is for duplexing (a method of giving mirrored disks higher reliability via separate channel connections). It is unusual that a facility would configure duplexing between the two internal disks; remote storage would be used for duplexing and then an additional SCSI controller is recommended, eliminating a single point of failure. Why isn't a Redundant Power Supply offered, even as an option? A redundant power supply (RPS) is a proportionately expensive option on an entry-level, economical server, almost 10% of the cost of the server. Instead HP recommends that the customer consider a spare, swappable system instead of swappable components. The cost of 20 internal RPSs needed to provide spares for a full rack of servers is equivalent to two more HP NetServer LPrs and with the LPr the customer has purchased spares capability for not only power supply failure but also for any other type of failure. What are the qualities of a good server vendor? HP's approach is based first on solid system design and manufacturing of all server components and subsystems, because the most effective approach to improving availability is to keep faults from occurring in the first place. HP's philosophy is to provide the appropriate level of technology based on what your business needs and finds cost-effective. The HP NetServer Solution The HP NetServer LPr delivers incredible features and value for fast-growing, demanding networks in its compact 2U-form factor. This server is configured with either one or two of the latest Intel Pentium III processors, 1 GB of ECC SDRAM memory, an integrated Ultra2 SCSI controller with 80 MB/s data transfer and 4 32-bit PCI expansion slots including a 10/100TX NIC. This design provides industry-leading rack density, plus great performance, availability and management features. The server can be used in a broad range of applications, a few of which have been discussed in this paper. 9