Message-Id: <10662.120482@fatcity.com> From: Satar Naghshineh Date: Fri, 27 Oct 2000 10:20:05 -0700 Subject: RE: RAID This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C0403A.2619C960 Content-Type: text/plain Lee, in that type of environment, you would need a real storage solution like EMC or something similar that can hold that kind of data in a database environment. Jay, Cache is not always a good thing. The best thing out there is a storage solution that has something called "smart cache" that determines whether to bypass cache and write strictly to disk in a sequential write environment. Regards, Satar > -----Original Message----- > From: Jay Hostetter [SMTP:jhostetter@decommunications.com] > Sent: Friday, October 27, 2000 2:51 PM > To: Multiple recipients of list ORACLE-L > Subject: Re: RAID > > Lee, > > I think the consensus is to use Raid 0+1. Our sysadmin claims that our > disk cache is so large, that it doesn't really matter that we are using > Raid 5 (we are on Tru64 4.0d). I really don't have the hardware expertise > or the time to prove otherwise. I wouldn't mind hearing some comments on > that statement from other folks on the list as they reply to your > question. I am able to flood the cache during sqlloader runs, but other > that that, he seems to be correct. > > > > > > Jay Hostetter > Oracle DBA > D. & E. Communications > Ephrata, PA USA > > >>> lerobe - Lee Robertson 10/27/00 08:30AM >>> > All, > > I have seen various threads on the subject of Oracle and Raid but don't > have > any messages stored on the subject so forgive me for the repetition > factor. > > Can someone provide a list of do's/don'ts, advantages/disadvantages of > using > various raid levels with Oracle (in this case 8) on a TRU64 4.0 platform. > Database will be approx. 4Tb in size/ > > Regards > > Lee > > > Lee Robertson > Acxiom > Tel: 0191 525 7344 > Fax: 0191 525 7007 > Email: lerobe@acxiom.co.uk > > > > ------_=_NextPart_001_01C0403A.2619C960 Content-Type: text/html Content-Transfer-Encoding: quoted-printable RE: RAID

Lee, in that type of = environment, you would need a real storage solution like EMC or = something similar that can hold that kind of data in a database = environment.

Jay, Cache is not = always a good thing. The best thing out there is a storage solution = that has something called "smart cache" that determines = whether to bypass cache and write strictly to disk in a sequential = write environment.

Regards,
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