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The editor will share with you how to solve the common problems of SSD cloud disk and the optimization problem of Imax O. I hope you will gain a lot after reading this article. Let's discuss it together.

The content of this article is about the common problems of SSD cloud disk and Icano optimization problems, there is a certain reference value, friends in need can refer to, hope to help you.

SSD cloud disk FAQ FAQ

1. What is the performance of SSD cloud disk?

High performance: the storage performance of a single SSD cloud disk with a maximum of 20000 random read and write IOPS and 300 MBps throughput.

IOPS=min {1200 to 30 * capacity, 20000}, starts with 1200 random IOPS and provides 30 random IOPS per GiB, up to 20000.

Throughput = min {80 MBps 0.5 * capacity, 300} MBps, starting at 80 MBps, increasing by 0.5 MBps per GiB, with a maximum throughput performance of 300 MBps.

2. What is the data reliability of SSD cloud disk?

SSD cloud disk adopts Aliyun Feitian distributed storage technology, based on distributed three-copy mechanism, which can guarantee 99.9999999% data reliability.

3. What are the suitable application scenarios for SSD cloud storage?

With the characteristics of high performance and high reliability, SSD cloud disk is very suitable for medium-and large-scale relational database scenarios such as MySQL, SQL Server, Oracle, PostgreSQL and so on. It is also suitable for medium-and large-scale development and test environments that require high data reliability.

4. How much does the performance of SSD cloud disk improve compared with ordinary cloud disk? Can you provide specific parameters?

The random IOPS performance of SSD cloud disk is 20 times higher than that of ordinary cloud disk, and the throughput is 8 − 16 times higher. In general, it is normal for the IOPS performance of SSD cloud disks to fluctuate by about 10%.

5. What is the concept of Imap O optimization? Can I upgrade an existing ECS instance to an Icano-optimized instance?

SSD O optimization provides better network capability between the instance and the cloud disk, which ensures the storage performance of the cloud disk.

For the instance optimized by SSD O, you can get all the storage performance of SSD cloud disk when mounting SSD cloud disk.

The purchased stock ECS instances do not support Icano optimization. It is not supported to upgrade to an instance that is not optimized by Iripple O for instances that are not optimized by Iripple O.

6. Is it supported to replace the original ordinary cloud disk with SSD cloud disk?

Since SSD cloud disks are implemented with full SSD storage media, it is not supported to directly replace ordinary cloud disks in stock with SSD cloud disks.

7. How to purchase SSD cloud disk, what is the price of optimized instance and SSD cloud disk?

Please see the instance price optimized by SSD cloud disk and Ithumb O.

8. Why is it sometimes time-consuming to start an instance optimized by Icano?

The KVM virtualization technology is used for the instance optimized by Ipicuro. If you create an instance optimized with custom image of stock, there is a process of reinstalling the driver at startup, which results in a long startup time, which is less than 10 minutes in most cases.

9. Some custom images do not support the creation of instances optimized by Igamo. What should I do?

It is true that some custom images do not support the creation of instances optimized by Ipicuro. If you want to use such custom mirrors to create instances optimized by Ipicurus, please submit a ticket to apply (you need to specify the name of the image). Aliyun will do compatibility verification in the background, and then use it after the verification is passed.

10. Is upgrade supported after purchase?

Upgrade and expansion are supported.

11. After using the optimized instance and SSD cloud disk, the Linux system reported an error when mounting the partition.

The mount point of the SSD cloud disk is displayed as / dev/vdx in the Linux system, which is different from the mount point / dev/xvdx of a normal instance, so there will be errors in the tool script before execution. It is recommended that you use the new one-click partition tool: tool: auto_fdisk_ssd.sh to format the partition, or write the correct mount point / dev/vdx when you do it manually.

twelve。 Why do I cause instances to go down when I test performance with fio?

Fio is a testing tool that supports bare disk partitions and file systems to test Icano performance. If you test the bare disk partition directly, the file system metadata in the bare disk partition may be destroyed, and the access to the files in the bare disk partition will fail, resulting in instance downtime. The above problem does not exist when testing performance using the file system approach of fio, so we recommend using the fio file system to test the performance of IWeiO.

After reading this article, I believe you have a certain understanding of the common problems of SSD cloud disk and how to solve the optimization problem of Icano. You want to know more about it. Welcome to follow the industry information channel. Thank you for your reading!

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