Exadata Cacheflash Compression
From: Thomas P S <royxavier_at_yahoo.com>
Date: Thu, 8 May 2014 04:29:52 -0700 (PDT)
Message-ID: <1399548592.93165.YahooMailNeo_at_web162401.mail.bf1.yahoo.com>
Dear List, We have X4-2 Half Rack with 20TB flash cache with database size 8TB. I am very reluctant to enable flashcache compression as the size of the database is half of flashcache, but Oracle says enabling flashcache compression is a best practice. Every code execution need time, even though FC is implemented in hardware level compression, still I believe, there will be a penalty. In this scenario, enabling flashcache compression is a wise idea? Any one got falshcache I/O performance test results with compression and with out? Note: License is not an issue as we have Advanced Compression license. Thanks in advance, Thomas Saviour
Date: Thu, 8 May 2014 04:29:52 -0700 (PDT)
Message-ID: <1399548592.93165.YahooMailNeo_at_web162401.mail.bf1.yahoo.com>
Dear List, We have X4-2 Half Rack with 20TB flash cache with database size 8TB. I am very reluctant to enable flashcache compression as the size of the database is half of flashcache, but Oracle says enabling flashcache compression is a best practice. Every code execution need time, even though FC is implemented in hardware level compression, still I believe, there will be a penalty. In this scenario, enabling flashcache compression is a wise idea? Any one got falshcache I/O performance test results with compression and with out? Note: License is not an issue as we have Advanced Compression license. Thanks in advance, Thomas Saviour
-- http://www.freelists.org/webpage/oracle-lReceived on Thu May 08 2014 - 13:29:52 CEST