NAS Server and Archive
Duke's NAS is a file storage server used for departments and schools. The NAS allows your stored files to be shared by multiple clients.
You may also use NAS-Archive. This offering is an addition to the existing tiers of storage OIT offers. The NAS-Archive solution is targeted at meeting data needs that can withstand some reduction in performance and uptime with the benefit of a lower cost solution.
The below chart shows the differences in NAS and NAS-Archive storage options.
|Targeted Storage||Almost any network accessible (CIFS or NFS) storage across Duke University||Any archive type data that will be written once and accessed minimally and does not require TSM and/or offsite backups. If read/write times and/or uptime is a critical factor, the standard NAS should be used instead.|
|Minimum amount||"None". Current NAS volumes are as small as 10 Gb.||5 TB initial request with increments of 5 TB thereafter.|
|I/O Requirements||Production NAS storage. 10 Gb connections from the NAS to the core with tools to monitor and identify bottlenecks||1 Gb connection with only minimal monitoring. Data will be maintained on spinning disks and should be accessible at all times, but expectations on time to write and/or retrieve data should be minimal (within reasonable expectations)|
|Monitoring||Multi-level monitoring and alerts that allow for proactive identification of issues and bottlenecks at all levels (network, array, disk, volume, etc.) before they become user impacting issues.||Very minimal monitoring and alerts beyond simple up/down, network connectivity, and/or high level capabilities.|
|Backups||Snapshots for file based recoveries and TSM for disaster recovery with the option of an additional offsite TSM copy sent to Iron Mountain.||No snapshots or TSM offered. The only level of backup availability will be a redundant copy hosted on similar hardware in a secondary datacenter.|
|Support||24/7 OIT support with 24/7 "gold level" vendor support and monitoring. Full vendor call home functionality identifies faluts to the vendor's supportteam often prior to actual failures.||Minimal up/down availability monitoring. 8/5 vendor support. As with all OIT supported services, downtime will be minimizied, however, up to 24 hours of downtime may be scheduled periodically to allow for upgrades and/or rebalancing of the storage arrays.|
|Hardware||High level of hardware redundancy built in (controllers, backplanes, power, etc.) to minimize downtime.||Minimal hardware redundancy built in (power & RAID disks).|
|Access Method||NFS and/or CIFS||NFS and/or CIFS|
|Cost (Actual and Charged)||See pricing||See pricing|