NO RAID 5

Posted in 2009

DANNY DE KOSTER — Tue, 06 Oct 2009 08:48:49 — source: IIUG Forums & Mailing Lists

Hi all, Art, I just had a look at the presentation of Conference 2009. I saw NOT TO USE Raid 5. Can you explain me why not? Performance? Thanks! Danny

↪ replying to DANNY DE KOSTER

Obnoxio The Clown — Tue, 06 Oct 2009 08:59:00 — source: IIUG Forums & Mailing Lists

DANNY DE KOSTER wrote: > Hi all, Art, > > I just had a look at the presentation of Conference 2009. I saw NOT TO USE > Raid 5. Can you explain me why not? Performance? http://baarf.com -- Cheers, Obnoxio The Clown http://obotheclown.blogspot.com -- This message has been scanned for viruses and dangerous content by OpenProtect(http://www.openprotect.com), and is believed to be clean.

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MONTEVERDE Olmedo — Tue, 06 Oct 2009 09:16:40 — source: IIUG Forums & Mailing Lists

Hi Danny, Art will probably explain to you what's about technically. I can tell you that from a security point of view, you should not use RAID 5. Some years ago we had our production instance under RAID 5 and one day, all of a sudden, we lost our disks, in spite the fact that they were monitored. Our dealer was not able to give us an explanation about what really happened. We had to restore our instance from the last available backup. Today we have all our production instances under RAID 1+0 and besides the security issue, we have also improved performances. We still use RAID 5, but only for our test et development instances. HTP, Cheers, Olmedo Monteverde Fribourg, Switzerland -----Message d'origine----- De : ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] De la part de DANNY DE KOSTER Envoyé : mardi, 6. octobre 2009 10:49 À : ids@iiug.org Objet : NO RAID 5 [17357] Hi all, Art, I just had a look at the presentation of Conference 2009. I saw NOT TO USE Raid 5. Can you explain me why not? Performance? Thanks! Danny ******************************************************************************* Forum Note: Use "Reply" to post a response in the discussion forum.

↪ replying to DANNY DE KOSTER

DANNY DE KOSTER — Tue, 06 Oct 2009 09:21:13 — source: IIUG Forums & Mailing Lists

Thanks for the link!!

↪ replying to DANNY DE KOSTER

Art Kagel — Tue, 06 Oct 2009 10:36:03 — source: IIUG Forums & Mailing Lists

RAID5 is unsafe ant any speed! OTC sent you the link to the BAARF site where I assume you read my paper on the subject as well as the two others from well known Oracle experts. Also scan the twitter-like blurbs in the membership list where people have posted their own horror tales. Oh, yeah, and join BAARF! ;-) Art Art S. Kagel Oninit (www.oninit.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Oninit, the IIUG, nor any other organization with which I am associated either explicitly or implicitly. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Tue, Oct 6, 2009 at 4:48 AM, DANNY DE KOSTER <ddk@fidelity-soft.be>wrote: > Hi all, Art, > > I just had a look at the presentation of Conference 2009. I saw NOT TO USE > Raid 5. Can you explain me why not? Performance? > > Thanks! > Danny > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --001517475f1c7c7fb8047541cb47