IT Pro Verdict
The U400HA-D424 ticks all the right boxes for high availability storage. Along with fast controller failover and a high capacity, it offers an excellent range of features at a price the blue chips won’t be able to match
Excellent value; Dual active/active controllers; Very fast failover; NAS and IP SAN support; Good performance
Some software features yet to be implemented; SATA drives require extra MUX boards
Qsan's TrioNAS LX U400HA-D424 has every storage angle covered as it combines NAS, IP SAN and backup services with top-notch reliability. The appliance has redundancy as a high priority with no single point of failure throughput its entire architecture.
Its dual controllers operate in full active/active mode where they perform cache mirroring over a high-speed 64Gbps backplane and in the event of a controller failure, Qsan claims the appliance can failover in less than 60 seconds. Further hardware protection is provided by three redundant 550W PSUs and dual hot-swap cooling fan modules.
With ZFS in the driving seat, you get a fine choice of storage features including scheduled snapshots, data deduplication, compression and thin provisioning. You can use SSDs as read or write caches to boost performance plus local and remote replication are included in the price.
The new web management interface is much better designed than the previous version
Dave is an IT consultant and freelance journalist specialising in hands-on reviews of computer networking products covering all market sectors from small businesses to enterprises. Founder of Binary Testing Ltd – the UK’s premier independent network testing laboratory - Dave has over 45 years of experience in the IT industry.
Dave has produced many thousands of in-depth business networking product reviews from his lab which have been reproduced globally. Writing for ITPro and its sister title, PC Pro, he covers all areas of business IT infrastructure, including servers, storage, network security, data protection, cloud, infrastructure and services.