Cisco HyperFlex Systems is a hyper-converged infrastructure product, based on technology acquired with SpringPath (acquired September 2017). Cisco's modern HCI solution is Cisco Compute Hyperconverged with Nutanix.
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SANsymphony
Score 8.0 out of 10
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DataCore SANsymphony software-defined storage aims to deliver flexibility, scalability, and cost-efficiency in a HCI platform. Powered by a block-level storage virtualization technology, SANsymphony is designed to provide flexibility to control how data is stored, protected, and accessed. The vendor states users can ensure business continuity with just 2 nodes, easily scaling out to 64 nodes, and achieve productivity for performance-demanding workloads by improving I/O processing and reducing…
Smaller sites that would benefit from a cluster of 2-5 nodes. Not saying that it can't scale above that, but I find HyperFlex a great solution for those sites. A simple 3-node edge cluster can provide a huge amount of resources and redundancy. It's also really easy to scale the environment to meet growth requirements.
Now that you have virtualized your server's CPU and memory resources, you should look to do the same for your storage. Separation of hardware and software has many added benefits not only for CPUs and memory but for storage as well. Without this solution, we would not have been able to afford black-box type SANs at every location. This allowed us to virtualize over 90% of the server environment saving costs and power consumption/cooling and provides all the features costly black-box SANs, including true-HA (which most SAN vendors don't have). Migration from variant SAN storage and using mixed back-end storage solutions is as easier than ever before because the storage being virtualized.
UCS manager in HX is truly helping us in doing one touch firmware upgrades. Scaling of HX cluster (in few minutes) is too seamlessly due to service profiles.
HX does not hold you back by creating a single data store unlike other HCI products. With HX, you can create multiple data stores and allocate those to desired services. This help logically separate the install base on HX and removes confusion for the admins too.
We run high IOPs workload on HX, and we never felt latency issues due to the Cisco backbone (as you get FI as a TOR switch and options to choose 10G or 40G speeds).
With HX you truly enjoy a single window support from Cisco including for the top of the rack switch (FI in HX case). In other HCI infra, you certainly have to bank on to network switch vendor for support and bring HCI and switch vendor at one pane for troubleshooting latency related issues.
While we increased our footprint on HX, we didn't added additional administrators to support the landscape. This was possible because of the simplicity in managing HX clusters.
With HX we had setup stretched cluster between two near site data centres. This is a unique proposition in HX (we have 2 nodes in each data centre) and data centre failover works absolutely seamless.
there is the problem with starting cluster where there are not outside DNS and NTP services so we need to workaround this with additional storage or hosting it on the local storage.. many clusters has internal DNS/NTP services not available from outside and they need to be hosted on the HX
there is not RBAC or user mgmt on the CVMs so it is difficult to not add full permission for the people responsible for just shutdown and power on the cluster
native snapshots support with ibm backup products
running from not the only last snapshot in all use cases
More documentation is available now than when the product initially came out (which was an issue early on). Because it only supports UCS hardware, I think it does help with support issues. Nutanix has to support much more hardware. At the same time, you're dealing with the Cisco TAC, which can be mixed at times.
In the 3 years I have been running this, I have contacted support around 4 or 5 times and that was for minor questions with exception of one time when I was performing an update on the system. And in that one time, they were very timely in assisting me with correcting the problem. Top notch customer support!
HyperFlex is built on top of Cisco UCS infrastructure, which allows us to manage other non-HX servers attached to the same UCS environment. This allows us to tie everything together via Intersight and see all of the servers in our data centers. Other platforms don't really have a comparable offering.
DataCore is far easier to manage as well as deal with when it comes to hardware (as DataCore works with any hardware). It also seems way more affordable.
The simplified management makes it easier to operate and prevents mistakes.
Guided installation using the installer VM means you don't have to configure every component by hand. Improves deployment speed and lowers the risk of configuration issues.
Performance increase of 40-90% compared to our previous compute/storage cluster.
More uptime - Typical SANs have redundant controllers, redundant power supply's and can make the drives redundant by leveraging RAID-0, 5, 6, and 10. The claim to be HA but they are not. That is because if I spay water all over them or catch the SAN on fire, the storage will go down. With DataCore's solution we have identical systems (maybe even at different datacenters connected with long-haul-fiber) including duplicate storage. So one side of the solution can totally be taken offline by water, fire, etc. and the other side will remain up providing true-HA storage. Because of this, we can upgrade the SANs during the day and still keep storage services running (zero-downtime).
Lower Costs - Ability to use 3rd party hardware which lowers the costs, not only for the initial investment but as storage capacity grows.
All the features one can want - High Availability, Thin Provisioning, Asynchronous and Synchronous mirroring/replication, snap-shotting, continues data protection, deduplication, storage reporting, trending with graphs, centralized console for easier management and many more.
