So I don't need to ask the SAN admins to set up a series of LUNs? They can just make me one big mount point for my datafiles and it will be evenly distributed? We may be talking 5 TBs/day of data we are inserting at full deployment plus 4 million queries. -------------- Original message ---------------------- From: "Baumgartel, Paul" <paul.baumgartel@xxxxxxxxxxxxxxxxx> > I agree. What many people don't realize is that ASM was meant by Oracle > to allow small- and medium-size shops, who didn't want to shell out the > bucks for a storage system like Symmetrix, to realize the benefits of > striping and mirroring. Running ASM on top of RAID gives you stripes on > stripes (or what some people call "plaiding"-ugh). > > Having said all that, we run ASM on top of Symmetrix, as it's the > standard tier one storage. There are *some* benefits, such as automatic > rebalancing, but to my mind it's gilding the lily. > > > Paul Baumgartel > CREDIT SUISSE > Information Technology > Securities Processing Databases Americas > One Madison Avenue > New York, NY 10010 > USA > Phone 212.538.1143 > paul.baumgartel@xxxxxxxxxxxxxxxxx > www.credit-suisse.com > > > > ________________________________ > > From: oracle-l-bounce@xxxxxxxxxxxxx > [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Michael McMullen > Sent: Thursday, September 13, 2007 10:45 AM > To: ryan_gaffuri@xxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > Subject: Re: ASM IO distribution on a SAN > > > Doesn't this all seem like overkill? It doesn't sound like you are > getting RAW disks. The san guys would be using some form of raid already > wouldn't they? They've packaged up the disks, made luns for you, do you > really want another layer on top to troubleshoot? > I don't think ASM will increase your performance beyond was a good SAN > admin could do for you. > > Mike > > ============================================================================== > Please access the attached hyperlink for an important electronic > communications > disclaimer: > > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html > ============================================================================== >
--- Begin Message ---
- From: "Baumgartel, Paul" <paul.baumgartel@xxxxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 13 Sep 2007 16:47:54 +0000
Paul Baumgartel
CREDIT SUISSE
Information Technology
Securities Processing Databases Americas
One Madison Avenue
New York, NY 10010
USA
Phone 212.538.1143
paul.baumgartel@xxxxxxxxxxxxxxxxx
www.credit-suisse.com
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Michael McMullen
Sent: Thursday, September 13, 2007 10:45 AM
To: ryan_gaffuri@xxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: Re: ASM IO distribution on a SANDoesn't this all seem like overkill? It doesn't sound like you are getting RAW disks. The san guys would be using some form of raid already wouldn't they? They've packaged up the disks, made luns for you, do you really want another layer on top to troubleshoot?I don't think ASM will increase your performance beyond was a good SAN admin could do for you.Mike============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html ==============================================================================
--- End Message ---
