How Do I Choose Storage Classes?
To meet various performance and cost requirements, cloud service providers provide a range of storage levels that are different in access frequency and latency, minimum storage time and unit, and data reliability and availability. OBS provides the following storage classes:
- Standard
This storage class features low latency and high throughput. It is therefore good for storing frequently (multiple times per month) accessed files or small files (less than 1 MB). Its application scenarios include big data analytics, mobile apps, hot videos, and social apps.
- Infrequent Access
This storage class is for storing data that is infrequently (less than 12 times per year) accessed, but when needed, the access has to be fast. It can be used for file synchronization, file sharing, enterprise backups, and many other scenarios.
- Archive
This storage class is most suitable for archiving rarely-accessed (averagely once a year) data. Potential application scenarios include data archiving and long-term data retention for backup. This storage class is secure, durable, and inexpensive, so it can be used to replace tape libraries. To keep costs low, it may take minutes or hours to restore data from the Archive storage class.
For details about Huawei Cloud OBS storage classes, see OBS Storage Classes.
Storage Class Conversion for Reserving the Source Storage Class
If you choose Reserve source storage type for the destination storage policy, see Table 1. The numbers in parentheses indicate the monthly price per GB | the price per 10,000 read requests | the price per 10,000 write requests | the restoration price per GB (not applicable to standard storage) in turn. The prices in the table below are for reference only. The actual prices may vary depending on cloud service providers.
- The regions used for reference in the following table are: Beijing, China for Huawei Cloud, Baidu Cloud, Alibaba Cloud, Tencent Cloud, and Kingsoft Cloud; Hong Kong, China for Google Cloud and AWS; East Asia for Microsoft Azure; and the Chinese mainland for Qiniu Cloud and UCloud. For capacity-based billing, the highest pricing tier is referenced. For AZ-based billing, if a cloud service provider offers multi-AZ storage but does not name it explicitly on the website, the pricing tier for single-AZ storage is referenced. The unit of measurement is CNY.
- For any cloud service providers that are not mentioned in the following table, the destination storage class will be Standard.
|
Source |
OBS Standard (0.099|0.01|0.01) |
OBS Infrequent Access (0.08|0.1|0.1|0.0325) |
OBS Archive (0.033|0.1|0.1|0.06) |
OBS Deep Archive (0.014|0.5|0.5|0.12) |
|---|---|---|---|---|
|
Amazon S3 |
|
|
S3 Glacier Flexible Retrieval (0.031|0.0275|2.4774|0.8258) |
S3 Glacier Deep Archive (0.0138|0.0275|4.1291|1.6516) |
|
Baidu Cloud BOS |
Standard Storage (0.119|0.01|0.01) |
|
Archive (0.015|0.5|0.5|0.12) |
- |
|
Tencent Cloud COS |
|
|
Archive (0.033|0.01|0.01|0.06) |
Deep Archive (0.01|0.5|0.5|0.14) |
|
Qiniu Cloud Kodo |
Standard (0.098|0.01|0.01) |
Infrequent Access (0.06|0.1|0.1|0.03) |
Archive (0.028|0.1|0.1|0.06) |
Deep Archive (0.012|0.5|0.5|0.12) |
|
Kingsoft Cloud KS3 |
Standard (0.12|0.01|0.01) |
Infrequent Access (0.08|0.1|0.1|0.04) |
Archive (0.033|0.1|0.1|0.06) |
- |
|
Alibaba Cloud OSS |
Standard (0.12|0.01|0.01) |
Infrequent Access (0.08|0.1|0.1|0.0325) |
Archive (0.033|0.1|0.1|0.06) |
Cold Archive (0.015|0.1|0.1|0.2) |
|
UCloud US3 |
Standard (0.12|0.01|0.01) |
Infrequent Access (0.06|0.1|0.1|0.03) |
Archive (0.024|0.1|0.1|0.06) |
- |
|
Azure Blob Storage |
Hot tier (0.165|0.0344|0.4469) |
Cool tier (0.0756|0.0894|0.8937|0.0687) |
Archive tier (0.0137|78.0989|1.5675|0.2406) |
- |
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