Dot Hill Systems

US Patent 7107320 Data mirroring between controllers in an active-active controller pair

US Patent 7143227 Broadcast bridge apparatus for transferring data to redundant memory subsystems in a storage controller

US Patent 7146448 Apparatus and method for adopting an orphan I/O port in a redundant storage controller

US Patent 7277995 Storage controller and method for performing host access control in the host interface adapter

US Patent 7278054 Apparatus and method for deterministically performing active-active failover of redundant servers in response to a heartbeat link failure

US Patent 7313721 Apparatus and method for performing a preemptive reconstruct of a fault-tolerant RAID array

US Patent 7315911 Method for efficient inter-processor communication in an active-active RAID system using PCI-express links

US Patent 7320083 Apparatus and method for storage controller to deterministically kill one of redundant servers integrated within the storage controller chassis

US Patent 7330999 Network storage appliance with integrated redundant servers and storage controllers

US Patent 7334064 Application server blade for embedded storage appliance

US Patent 7340555 RAID system for performing efficient mirrored posted-write operations

US Patent 7362565 Disk drive support system

US Patent 7380055 Apparatus and method in a cached raid controller utilizing a solid state backup device for improving data availability time

US Patent 7380088 Storage device method and apparatus

US Patent 7380115 Transferring data using direct memory access

US Patent 7380163 Apparatus and method for deterministically performing active-active failover of redundant servers in response to a heartbeat link failure

US Patent 7401254 Apparatus and method for a server deterministically killing a redundant server integrated within the same network storage appliance chassis

US Patent 7418621 Redundant storage array method and apparatus

US Patent 7426618 Snapshot restore method and apparatus

US Patent 7437493 Modular architecture for a network storage controller

US Patent 7437604 Network storage appliance with integrated redundant servers and storage controllers

US Patent 7451348 Dynamic write cache size adjustment in raid controller with capacitor backup energy source

US Patent 7464205 Application server blade for embedded storage appliance

US Patent 7464214 Application server blade for embedded storage appliance

US Patent 7487391 Storage controller super capacitor adaptive life monitor

US Patent 7493441 Mass storage controller with apparatus and method for extending battery backup time by selectively providing battery power to volatile memory banks not storing critical data

US Patent 7523350 Timer-based apparatus and method for fault-tolerant booting of a storage controller

US Patent 7536495 Certified memory-to-memory data transfer between active-active raid controllers

US Patent 7536506 RAID controller using capacitor energy source to flush volatile cache data to non-volatile memory during main power outage

US Patent 7536508 System and method for sharing SATA drives in active-active RAID controller system

US Patent 7536584 Fault-isolating SAS expander

US Patent 7539799 Method and apparatus for identifying enclosures and devices

US Patent 7543096 Safe message transfers on PCI-Express link from RAID controller to receiver-programmable window of partner RAID controller CPU memory

US Patent 7558897 Method for adopting an orphan I/O port in a redundant storage controller

US Patent 7558981 Method and apparatus for mirroring customer data and metadata in paired controllers

US Patent 7565566 Network storage appliance with an integrated switch

US Patent 7568122 Method and apparatus for identifying a faulty component on a multiple component field replaceable unit

US Patent 7593973 Method and apparatus for transferring snapshot data

US Patent 7606944 Dynamic input/output optimization within a storage controller

US Patent 7627780 Apparatus and method for deterministically performing active-active failover of redundant servers in a network storage appliance

US Patent 7661002 Storage controller super capacitor dynamic voltage throttling

US Patent 7661014 Network storage appliance with integrated server and redundant storage controllers

US Patent 7673185 Adaptive SAS PHY configuration

US Patent 7676600 Network, storage appliance, and method for externalizing an internal I/O link between a server and a storage controller integrated within the storage appliance chassis

US Patent 7681089 Redundant storage controller system with enhanced failure analysis capability

US Patent 7689736 Method and apparatus for a storage controller to dynamically determine the usage of onboard I/O ports

US Patent 7711989 Storage system with automatic redundant code component failure detection, notification, and repair

US Patent 7716183 Snapshot preserved data cloning

US Patent 7743138 Method and apparatus for external event notification management over in-band and out-of-band networks in storage system controllers

US Patent 7743224 Method and apparatus for virtual load regions in storage system controllers

US Patent 7774643 Method and apparatus for preventing permanent data loss due to single failure of a fault tolerant array

US Patent 7783603 Backing store re-initialization method and apparatus

US Patent 7783850 Method and apparatus for master volume access during volume copy

US Patent 7788541 Apparatus and method for identifying disk drives with unreported data corruption

US Patent 7793145 Method and apparatus for verifying fault tolerant configuration

US Patent 7809886 RAID controller using capacitor energy source to flush volatile cache data to non-volatile memory during main power outage

US Patent 7818436 Method and apparatus for external interface user session management in storage system controllers

US Patent 7831565 Deletion of rollback snapshot partition

US Patent 7861113 Method and apparatus for operating storage controller system in elevated temperature environment

US Patent 7921301 Method and apparatus for obscuring data on removable storage devices

US Patent 7975115 Method and apparatus for separating snapshot preserved and write data

US Patent 8001345 Automatic triggering of backing store re-initialization