Data distribution method for diskless network server based on solid state disk (SSD) and hard disk drive (HDD) hybrid storage
A network server and data distribution technology, applied in the field of diskless network server data distribution based on SSD and HDD hybrid storage, can solve the problem of easy wear and tear of storage media, improve read and write performance, improve hit rate, and reduce write-back to disk effect of probability
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[0051] Figure 4 It shows the division of SSD shared area and HDD workstation private area. Most of the system data read by all workstations is located in SSD, and each workstation has its own private data stored in HDD. HDD is divided into three areas: the first area is the extension block rewriting identification linear table, the second area is the redirection address index after each workstation rewrites each expansion block, and the third area is the private data area of each workstation. Each workstation will have a write-back operation to the shared area in the SSD during the startup process. In order to avoid data inconsistency caused by the write-back of each workstation to the shared area, the rewrite operation is identified by constructing an extended block rewrite flag. After addressing and encoding the SSD shared area according to the extended block, each extended block in the SSD shared area corresponds to 1 bit to identify whether the extended block has been ...
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