Messages in this thread | | | From | "Petrucci, Joseph" <> | Subject | RE: lack of raw disk devices | Date | Sat, 10 Jan 1998 08:50:23 -0600 |
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>venaas@nvg.ntnu.no wrote >Sent: Saturday, January 10, 1998 8:00 AM >Subject: Re: lack of raw disk devices
>> About an earlier message from me: >> Both Oracle and Sybase can use filesystems instead of raw devices Sybase >> recommends Raw for data integrity incase of failure because of the way >> UNIX systems (and I'm assuming linux) buffers its writes. > >I asked some guy from Oracle about this, and he said that when he >installed Oracle for customers, he preferred not to use raw devices, >simply because too many losers accidentally wiped it out, thinking it >was a free partition. According to him, the performance increase from >raw devices were at most 10-20% depending on the OS and file system. >He also had Oracle up and running on Linux BTW. > >Stig
Normally your correct but in some write intensive systems Oracle recommends raw devices (look on the oracle home page for tuning whitepapers) as to "losers" accidentally wiping out disks maybe he should get better control of his machines.
JP
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