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The following figure shows how the controller handles a host write request in SSD read
cache. The write data can also be frequently accessed data and populated into SSD cache
for next read.
Figure 10-8
Write Data
These steps are:
1.
A host requests to write data.
2.
Data is written to the HDD volume.
3.
The status is returned to the host.
4.
The SSD cache is populated if the write threshold is reached.
Write Data in Read-write Cache
The following figure shows how the controller handles a host write request in SSD read-
write cache. The write data stays in the SSD cache for a while, and will be flushed to the
HDD volume at the appropriate time.
Summary of Contents for XCubeSAN XS5224D
Page 71: ...SANOS User Interface 49 nnnnn RPM Power Supply Local PSU n status Reset to Default Yes No...
Page 99: ...System Settings 77 Figure 6 14 System Information...
Page 315: ...Monitoring 293 Figure 13 5 Hardware Monitoring...
Page 327: ...Support and Other Resources 305 Figure 15 1 Download Service Package in the SANOS UI...
Page 331: ...Support and Other Resources 309...