a. What are the core features of super fusion?
First of all we need to have a concept, we see these nouns, in fact is the earliest established the makers of these architecture, such as the earliest Nutanix promote the concept of fusion (HCI: the Hyper Converge Infrastructure), the objective is to establish a product category, it is marketing usual technique, but foreigners play really slip is very successful,
Nutanix core technology is the distributed storage of start, just have made a further innovation in deployment architecture, adopted the way of fusion, actually this kind of innovation in the difficulty of the technology itself is not big, but largely promote the distributed storage market fall to the ground,
So this is the core of super fusion 1.0, but a lot of people on the market, puzzled by "fusion" 2 words, even some vendors, also show, weaken the storage section (the cause of the weakening is stored it's really hard to do), pure fusion, to emphasize the integrate a heap of innocuous things, people think this is not the right direction,
I think the real leverage the characteristics of the fusion of traditional IT market 1.0 mainly two things:
First, based on X86 server architecture of distributed storage (here aside SDS, can add new confusion).
The second is, distributed computation and storage virtualization deployment in the same server hardware,
Contrast can see below, bring value to users of the important features of about 70% comes from the distributed storage, 30% is the benefits of fusion architecture (such as management simplified, the cost reduction), but it is precisely this 30%, let users are more willing to switch from traditional architecture to distributed architecture,
2. Super fusion is revolutionary architecture? Whose life leather?
Any call revolutionary architecture should have at least the following three characteristics:
One is that the use of the user habit will have big change;
Second, bring great value for the user;
Three new vendors is that it can leverage the traditional market established manufacturers,
Products have more than three, super fusion, two points behind before introduced respectively, and the third by foreign Nutanix, VMware (vSAN), China's SmartX manufacturers such as seen in the case description, they replaced a large number of products is established storage vendor EMC, HDS company's storage products, such as some people would say don't Nutanix server virtualization products yourself? If this is in the replacement VMware? But that was later story, the original core Nutanix product is super fusion architecture of distributed storage, users purchase Nutanix does not need to replace the original server virtualization (such as Dell) or brand (such as VMware), only the storage (EMC) must be replaced, this is an important starting point and the breakthrough point, if the original Nutanix to replace store by the concept of super fusion, virtualization and server hardware, I think it would be too many enemies, almost no chance,
3. Why super fusion architecture will appear in recent years?
A revolutionary technology architecture, mature need at least two core elements:
One is that the strong needs of customers;
Second, related technologies mature,
Fusion architecture of customer requirements from the digital and Internet business use of IT resources speed and use requirement is improved, and the related technology has much to do, the landing of architecture market,
1. The distributed storage architecture
This actually in use for many years the Internet company, distributed storage may well based on X86 server build a easy extension, high reliable storage resource pool, is the foundation of super fusion,
2. The SSD
There is no doubt that the SSD for storage architecture is huge, the influence of traditional mechanical hard disk 4 k random performance in the 300 s, whereas the SSD like Intel 3710 could reach more than 70000 IOPS, two orders of magnitude higher than that of directly, but at the same time double controller architecture will become a bottleneck, such as the Unity of EMC can support 650 one thousand pieces of hard drive or SSD, but arrived when I was 31 SSD bottleneck, the read/write mix biggest can reach 270000 IOPS, lo
Similarly, SSD greatly reduce the transactional storage system rack space, make the comparison between the number of storage and computing node match, this is an important condition of super fusion architecture was set up,
3. The virtualization
Super fusion architecture formed another important condition is that virtualization has been widely accepted, otherwise distributed storage impossible and application is a physical node, unless it is an all-in-one product manufacturers,
4. The CPU
Finally, it is often said of the CPU more powerful and cheaper, can solve the computing and storage requirements, at the same time
4. Super merge is distributed computation and storage virtualization simply installed together?
Of course, the answer is NO,
Because want to do storage virtualization in super fusion form, also should have the following characteristics:
One is that the system resource consumption should be less, and controllable, reasonable plan should not exceed 10%;
Second, support VM localization data access, this is another big advantage of super fusion architecture;
Three is, since it is the key support storage virtualization platform, you should have better support to different virtualization platform, VMware similar, KVM,
So, now the Chinese market is real super fusion architecture is Nutanix, VMware, SmartX, many domestic manufacturers with a Ceph super convergence of packing product, no more than three can do a good job, and the main problems include:
1. The hash algorithm cannot achieve precise control of data storage, so I/O localization cannot be achieved,
2. The software I/O path is longer, more CPU resources consumption and adds further delay,
5. What are the differences between super fusion architecture and traditional architecture?
Here I picked SmartX architecture diagram is used to do comparison shows that the more clear (figure are taken from the following several SmartX products film), for the real super integration products, the following features are consistent, if there is a small amount of feature differences, will specially described,
6. Why the fusion of architecture and reliable performance is better than traditional double control architecture?
Built by server storage, the customer first that concerns most is the reliability, if you need to measure reliability:
System redundancy? Popular said is to allow hardware bad?
Fully automatic recovery after failure?
Recovery speed and time? Because the system is in a state of degradation condition is more dangerous, fault window is smaller, the less the fault possibility of overall,
Here are detailed system redundancy and recovery mechanism,
The table above need to be further illustrate that
Three copies can bring better than double control of redundancy, the price is, of course, more capacity loss,
Granularity part in management, and implement different, have a plenty of resource pool based on set copy of two or three and some manufacturers, such as SmartX, is based on volume unit, the advantage is that different copies can be in a pool of resources allocation strategy, used in different security levels of the VM,
Hot standby panel processing, actually most of the distributed storage all have no, but the use of existing space to recover, but need to emphasize GlusterFS now or use hot plate mechanism, including deep convinced or build super fusion based on the products, such as personal not looking good,
Can see reliability, the advantages of the ultra fusion architecture is very large, but in fact the advantage here is distributed storage itself should have,
7. Why super random performance of fusion architecture is higher than traditional architecture?
It can be seen that the super fusion architecture is also very obvious advantages in terms of performance, of course the price is the consumption of computing resources, so the consumption of computing resources is an important factor test of a blended super professional,
Here are detailed performance mechanism,
Performance related features, multi-node concurrent and extension performance remains of distributed storage, and data localization is super unique fusion architecture, architecture of separate, of course the price is computing resource utilization, SSD is even store will use traditional architecture, but cannot play to the performance of the SSD, double control
Such as EMC Unity 650 f, 8 k lo mixing random read/write performance biggest 270000 IOPS, with similar Nutanix SmartX performance better than fusion products, such as a node 8 k lo mixture is easy to reach more than 30000 IOPS, random, speaking, reading and writing through the linear scaling, around 10 nodes can achieve maximum performance of EMC Unity 650 f, and 10 nodes is very small user scale,
eight. Why super fusion architecture scalability is better than traditional architecture?
Scalability is one of the biggest advantage of distributed architecture, data automatic load balancing effect after expansion and of course, is not necessarily, to see the transition degree of manufacturer,
Here are detailed system scalability, extensibility, remains of distributed storage architecture,
9. Why super fusion architecture deployment operations more simple?
Super fusion architecture simplify operational effect is very significant, the deployment and operations from the viewpoint of several contrast, some of the advantages are distributed architecture, such as the only standard commercial service hardware maintenance, and after using super fusion, can further reduce the demand for hardware,
10. Super fusion exactly how to save money for the user?
Statement on the Internet a lot, but below the instance may be even more precise and quantitative some, you can compare the cost, there is no including personnel maintenance costs, and costs, such as renewal, manpower cost, remove the professional storage operations can save a large part of overhead, according to the practical experience, is made of super fusion spent at least 50% reduction on personnel, procurement cost, super fusion products can do traditional architecture commonly 70%,
The following gives contrast instance using the costs and benefits,
11. Super fusion is not suitable for what scene?
In the traditional sense of the super fusion is suitable for various scenarios of virtualization, for bare metal is not suitable for the server, so there are some of the applications of heavy load, in the case of a virtualized all need not, natural won't consider super fusion, in addition, the integration of architectural pattern determines the computing and storage resources should be balanced growth, otherwise it is not very suitable for, such as vast amounts of unstructured data,
null