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Home -> Community -> Mailing Lists -> Oracle-L -> RE: SAME, WAFL and RAID
Thanks for the correction Steve.
Thank You
Stephen P. Karniotis
Technical Alliance Manager
Compuware Corporation
Direct: (248) 865-4350
Mobile: (248) 408-2918
Email: Stephen.Karniotis_at_Compuware.com
Web: www.compuware.com
-----Original Message-----
Sent: Tuesday, January 15, 2002 2:10 PM
To: Multiple recipients of list ORACLE-L Subject: RE: SAME, WAFL and RAID
WAFL and SAME are not the same. WAFL stands for Write Anywhere File Layout. It is a Network Appliance proprietary system and they've trade marked "WAFL." Coincidentally it's a RAID 4 NFS implementation. See: http://www.netapp.com/tech_library/3002.html#I3
Beware the marketing droids...
-----Original Message-----
Sent: Tuesday, January 15, 2002 10:40 AM
To: Multiple recipients of list ORACLE-L
Bill:
I believe that WAFL and SAME are variations on the technology implemented for RAID. WAFL and SAME are new technologies adopted by smaller disk manufacturers as a way to complete against the RAID implementers like EMC, Network Appliance, etc.
In my humble opinion, I would not bet the house on technology that you have not test-driven. I would suggest testing this stuff out and then asking them for references. As far as Gaja's paper, I have worked with Gaja for at least 6 years and believe his paper to apply quite nicely. It's not the type of disk implemented, its how you implement it.
Thank You
Stephen P. Karniotis
Technical Alliance Manager
Compuware Corporation
Direct: (248) 865-4350
Mobile: (248) 408-2918
Email: Stephen.Karniotis_at_Compuware.com
Web: www.compuware.com
-----Original Message-----
Sent: Tuesday, January 15, 2002 11:49 AM
To: Multiple recipients of list ORACLE-L Subject: SAME, WAFL and RAID
Hello,
I am looking for any pointers to white papers, etc.
that discuss the differences/similarities among
WAFL, SAME and RAID (shake, rattle and roll? - sorry)
file systems. We have some systems people pushing a vendor
(Procom) and their WAFL filesystem as a platform for an
Oracle data warehouse; showing them parts of Gaja's paper
"Implementing Raid on Oracle Systems"
resulted in the response of "WAFL is different from Raid - this
paper doesn't apply". I found a white paper "Optimal
Storage Configuration Made Easy" on Technet, which
advocates the SAME methodology, and am wondering about the
differences among these configurations.
Are WAFL and SAME the same(sic)?
Are WAFL and/or SAME just other variants of Raid, or are the
differences greater than the similarities?
As always, any advice/comments are appreciated.
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Orr, Steve
INET: sorr_at_rightnow.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Tue Jan 15 2002 - 14:29:38 CST
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