Power Supply UnitRedundant/ Hot Swap ATX Power Supply, 450W, 90-240Vac~, 50-60Hz The functions listed below are managed via the QNAP QES operating system. Support for hard disk’s S.M.A.R.T. capacity RAID expansion enclosure LED identifier Location indication of RAID expansion enclosure Location indication of hard disks on RAID expansion enclosure Smart fan control In-band firmware update The disks, RAID Groups, storage pools, and volumes in the RAID expansion enclosures are configured via the QES operating system. Upto 1PB Single Volume Support for multiple RAID groups in a storage pool to ensure data safety Online storage pool expansion Online volume expansion Block-based iSCSI LUN Support for thin-provisioned volume with space reclamation Support for thin-provisioned iSCSI LUN with space reclamationYes Expansion Enclosure Management The functions listed below are managed via the QNAP QES operating system. Support for hard disk’s S.M.A.R.T. capacity RAID expansion enclosure LED identifier Location indication of RAID expansion enclosure Location indication of hard disks on RAID expansion enclosure Smart fan control In-band firmware update The disks, RAID Groups, storage pools, and volumes in the RAID expansion enclosures are configured via the QES operating system. Upto 1PB Single Volume Support for multiple RAID groups in a storage pool to ensure data safety Online storage pool expansion Online volume expansion Block-based iSCSI LUN Support for thin-provisioned volume with space reclamation Support for thin-provisioned iSCSI LUN with space reclamationExpansion Enclosure Management The functions listed below are managed via the QNAP QES operating system. Support for hard disk’s S.M.A.R.T. capacity RAID expansion enclosure LED identifier Location indication of RAID expansion enclosure Location indication of hard disks on RAID expansion enclosure Smart fan control In-band firmware update The disks, RAID Groups, storage pools, and volumes in the RAID expansion enclosures are configured via the QES operating system. Upto 1PB Single Volume Support for multiple RAID groups in a storage pool to ensure data safety Online storage pool expansion Online volume expansion Block-based iSCSI LUN Support for thin-provisioned volume with space reclamation Support for thin-provisioned iSCSI LUN with space reclamation High Availability Based On Dual Active Controller / Dual Loop Superior High Availability Dual controller, dual-loop architecture to tolerate the failure of a single node Dual back-end IO paths (dual controller configuration) Topology: Single controller, single Single controller, multiple path, loop Dual-controller, single path Dual-controller, multiple path, loop Scalability Support disks up to 16 Support cascade JBOD configuration to connect more JBODs, up to 6 sets Superior FRU Design Hot swappable PSU module, disks and controller module, for easier maintenance and deployment Dual Slim type PSU module High Availability Based On Dual Active Controller / Dual Loop Superior High Availability Dual controller, dual-loop architecture to tolerate the failure of a single node Dual back-end IO paths (dual controller configuration) Topology: Single controller, single Single controller, multiple path, loop Dual-controller, single path Dual-controller, multiple path, loop Scalability Support disks up to 16 Support cascade JBOD configuration to connect more JBODs, up to 6 sets Superior FRU Design Hot swappable PSU module, disks and controller module, for easier maintenance and deployment Dual Slim type PSU module 