Phoenix RPC12 Series, Cli Reference Manual, Page: 241 / 245

15 Phoenix RPC12 Series CLI Reference Manual • September 2008
implementations include mechanisms to preserve cache contents across
system failures (including power failures) and to flush the cache at
system restart time. (SNIA)
This is how Phoenix storage systems operate. See also write-through
cache .
write-through
cache A caching technique in which the completion of a write request is not
signaled until data is safely stored on non-volatile media. Write
performance with a write-through cache is approximately that of a non-
cached system, but if the data written is also held in cache, subsequent
read performance may be dramatically improved. (SNIA)
Phoenix storage systems use write-through cache when write-back
cache is disabled or when cache backup power is not working. See also
write-back cache .