HP BL460c HP BladeSystem c7000 Enclosure technologies,4th edition - Page 15

performance storage access without any additional cables. The SB40c Storage Blade features an onboard Smart Array P400 controller with 256 MB battery-backed write cache, for increased performance and data protection. For mechanical compatibility, storage blades use the same halfheight form factor as server blades. The SB40c direct attach storage blade must be paired with an adjacent server blade in the same cooling zone. This is because the physical connection between the direct attach storage blade and its adjacent server blade is a dedicated x4 PCIe connection across the NonStop midplane that connects the adjacent bays. The half-height server blade and direct attach storage blade must be paired in specific bays. Refer to the appendix for bay number details. A mezzanine card is not required to connect a half-height server blade to a direct attach storage blade. A mezzanine card is required to connect a full-height server blade to a direct attach storage blade. The card must be in the Mezzanine 3 connector to allow full use of the interconnect bays with Type I or Type II mezzanine cards, to be consistent with the half-height blades, and to enable mixing half-height and full-height server blades in the same enclosure. NOTE When used with a full-height server blade, the direct attach storage blade must be in the bottom bay. To maintain essential airflow, a blank must be attached above the storage blade to block the empty upper bay, or a half-height server blade must be inserted into the upper bay. For this configuration, the storage blade should be installed before the half-height server blade is installed, and the half-height server blade should be removed before the storage blade is removed. Shared storage HP LeftHand P4000 Virtual SAN Appliance (VSA) software turns the SB40c into an iSCSI SAN for use by all servers in the enclosure and any server on the network. HP LeftHand VSA software is installed in a virtual machine on a VMware ESX host server adjacent to the SB40c. HP LeftHand P4000 VSA features storage clustering for scalability, network RAID for storage failover, thin provisioning, snapshots, remote replication, and cloning. Capacity can be expanded within the same enclosure or to other BladeSystem enclosures by adding additional SB40c Storage Blades and HP LeftHand VSA licenses. External SAS connectivity with direct connect SAS storage for HP BladeSystem With direct connect SAS storage for HP BladeSystem, administrators can build local server storage on the fly with zoned storage, or enable low cost shared storage within the rack with high performance 3 Gb/s SAS architecture. Each HP server blade requires an HP Smart Array P700m controller installed in a mezzanine slot. Redundant HP StorageWorks 3 Gb SAS BL switches are installed in the interconnect bays of the HP BladeSystem enclosure. The switches are then connected through an SAS cable to external storage depending on application requirements. NAS/SAN Gateway The X3800sb Network Storage Gateway Blade is a ready-to-deploy SAN gateway solution, with Microsoft Storage Server 2008 Enterprise x64 Edition pre-installed. The X3800sb Network Storage Gateway Blade is used to access FC, SAS, or iSCSI SAN storage, translating file data from the server into blocks for storage to provide consolidated file, print, and management hosting services in a cluster-able package. Storage server The X1800sb Network Storage Blade comes with Microsoft Windows Storage Server 2008 Standard Edition pre-installed. The X1800sb can be paired with the SB40c storage blade to create shared 15