Auto Tiering
209
Figure 11-1
Auto Tiering Pool
11.1.1.
SSD Cache vs. Auto Tiering
A key difference between tiering and cache is that tiering moves data to SSD instead of
simply caching it. Tiering can also move data both from slower storage to faster storage
and vice versa. But SSD cache is essentially a one-way transaction. When the cache is done
with the data it was accelerating it simply nullifies it instead of copying it back to HDD. The
important difference between moves and copies is that a cache does not need to have the
redundancy that tiering does. Tiering stores the only copy of data for potentially a
considerable period of time so it needs to have full data redundancy like RAID or mirroring.
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...
