2U RAID NAS -- big, fast, still not disaster-proof alone. The performance tier of the NAS lineup: more disks, more capacity, and by far the highest IOPS rating in the roster.
16 disks, 160TB usable, RAID10, 150000 IOPS, 32GB cache, 30% built-in redundancy chance. RAID10's own redundancy gives it real (if partial) odds of surviving a hardware fault entirely on its own, unlike the baseline NAS tier.
That 30% figure is a per-fault roll, not a guarantee -- it materially improves your odds versus the baseline tier's 0%, but it's still meaningfully worse than the Backup Appliance's dedicated 50%, and it's not a substitute for an actual `backupOfNasDeviceId` mirror share if the data is genuinely important.
The IOPS headroom is the real reason to pick this over the baseline tier for demanding clients -- a Client Contract that specifically stresses storage throughput is where the 2x U cost and higher power draw actually pay for themselves.
Tip: don't let the built-in redundancy chance talk you out of also configuring a real mirror share for anything mission-critical -- treat the 30% as a bonus safety margin on top of a real backup, not instead of one.
See also: the Game Systems manual's Data Management section for backup mirrors and disaster recovery.
Takes the Redundant PSU upgrade ($1800, Inspector → Upgrades): it adds a second power input, PSU2. Wire PSU2 to a DIFFERENT PDU or UPS than PSU1 and this device keeps running when either one dies. Two feeds from the SAME PDU protects nothing -- the redundancy panel simulates that PDU failing and watches the device fail with it regardless of cable count. The spare idles at zero draw, so it costs nothing extra on the power bill. See Redundancy & Failover.