Shulou(Shulou.com)06/01 Report--

The database application of an enterprise usually runs the core business of the enterprise. Enterprises pay special attention to the block-level IOPS performance of storage to ensure that low latency does not affect the normal operation of the business. In addition, when it comes to core business, enterprises focus on the security of data and business continuity, so the high availability of storage is also an important factor for enterprises to choose. Infortrend unified storage GS relies on the streamlined RAID structure independently developed by the underlying layer, as well as the brand-new Intel Skylake CPU platform. IOPS can reach 900K and the response time is less than 0.5ms, so it is very suitable for database applications.

In the database application scenario, solid state drives must be used to get out of high IOPS. After the optimization of SSD by Infortrend, the IOPS of a SSD is at least 50 times that of HDD. However, SSD will cause some pressure on the cost, so Infortrend specially designed a solution of "SSD cache + automatic storage classification" for GS, which makes GS an ideal storage for database applications.

Specifically, Infortrend specializes in memory processing to determine which data is the "hot data" frequently accessed by the front end, and copies the hot data to the SSD cache. When the front end accesses the data again, it reads the data from the SSD cache, thus improving the performance of IOPS. On the other hand, the "cold data" that is judged to be accessed infrequently will be directly written to large-capacity HDD storage. Right! GS supports a mixed configuration of SSD and HDD to deal with hot and cold data as different tier. In this way, the high-performance, limited number of SSD is all used to pull up the IOPS,HDD to save less frequently used data. It not only ensures the performance of IOPS, but also reduces the number of SSD purchased by users. GS is well-deserved as a cost-effective database storage.

In terms of high availability of storage, Infortrend creatively introduces the concept of "symmetrical double active" into GS in addition to general settings such as local / remote replication and snapshots. First of all, GS adopts symmetrical double active controller, and the two controllers process data at the same time. This not only improves performance, when one controller fails, the other controller still processes data, but the single control load increases, and the front end will not be affected in any way. When backing up off-site, two GS can do "double active backup". With the help of Infortrend gateway devices, the front-end IO is saved to two GS at the same time. Similarly, one GS shuts down and the other GS continues to support front-end access. Compared with replication, there is no need to do front-end mounting and other actions, and there will be no change before and after the storage failure.

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