The mission of QSM was to simplify storage and to construct an enterprise level of quality from storage components by building smarter software – indeed that notion is at the heart of the ZFS (Zettabyte File System). The most important part of enterprise storage device is RAID (Redundant Array of Independent Disks). RAIDZ is a data and parity scheme like traditional RAID, but it uses dynamic strip width. Every block is its RAID-Z stripe regardless of block size which means every RAIDZ write is a full stripe write. At the same time, RAIDZ combines with COW (Copy on Write) transactional semantics of ZFS and eliminates the RAID write hole. Nowadays, the time to populate a drive is straight significant for RAID rebuild. As disks in RAID systems take longer to reconstruct, the reliability of the total system decreases due to the increased period running in a degraded state.As hard drive capacities continue to outpace their throughput, the time comes for a new level of the RAID – Triple Party RAID and Beyond. Today, to repair a RAID group can easily take more than a day and the problems are getting significantly more pronounced as HDD continue to outpace its throughput. Ave. 0.8 percent of disk failures would result in data loss to an uncorrectable bit error. Therefore, the time to repair a failed drives are increasing, and at the same time, the lengthening duration of a scrub means that errors are more likely to be encountered during repair. With RAIDZ2 (similar to RADI-6) increasingly unable to meet reliability requirements, there is an impending but yet urgent for Triple parity RAID. The data reliability on RAIDZ3 is 5X safer than RAIDZ2 and 30X safer than RAIDZ1(similar to RAID-5)

Snapshot replication delivers powerful data management capabilities and is a cost-effective, easy-to-use centralized replication solution across different locations. With high speeds over LAN or WAN, you get high data availability and fast data replication for your business-critical data. Replication provides the storage backup competences by sending changed pieces over the network, which stimulate data transfers and minimize data transmission time. To recover from mirrored data corruption or data loss, it also eliminated the need for a separate infrastructure for maintaining backups at the DR site.

XMirror is one of the functions of QSM. It regularly synchronizes a volume or the contents of a folder between multiple XCubeNAS devices, any modification to documents will be replicated to other XCubeNAS via QSM. By using XMirror, data on different XCubeNAS systems, data consistency and availability is ensured. XMirror supports Volume and Folder mirror and up to 64 versions control.

IronWolf Health management monitors all status, such as temperature, shock, vibration, and disk connection unstable which helps the XCubeNAS to complete the data security solutions. The difference compares to S.M.A.R.T., the IronWolf health management provides 10 times more information than S.M.A.R.T.. Before the failure event happened, notify users of possible prevention and intervention action ahead of the time.