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Hi David
I don't know what to say, but even if it was the latest SAN it could still be low-end.
I can't recall having worked in any project that uses more than 1 LUN per SAP system, but I hope someone else can share their experience on this matter.
It makes sense that several LUNs will be able handle more I/O than a single LUN, though.
Regards,
LEH
From: D. Caddick via sap-basis [mailto:sap-basis@Groups.ITtoolbox.com]
Sent: 8. august 2010 17:51
To: Lars-Erik Hallsten
Subject: RE: [sap-basis] oracle data files ( not log files )
Posted by D. Caddick (SAP NetWeaver/BASIS Consultant)
on Aug 8 at 11:52 AM Mark as helpful
Hi Lars,
No this was recommended on a Superdome with the latest SAN and controllers
Regards
From: Lars-Erik Hallsten via sap-basis [mailto:sap-basis@Groups.ITtoolbox.com]
Sent: 08 August 2010 12:44
To: D. Caddick
Subject: RE: [sap-basis] oracle data files ( not log files )
Posted by Lars-Erik Hallsten (CEO & Senior Consultant)
on Aug 8 at 8:14 AM Mark as helpful
Hi David
This sounds like a low-end SAN with low-end disk controllers.
A high-end SAN does not need this kind of setup.
Regards,
LEH
From: D. Caddick via sap-basis [mailto:sap-basis@Groups.ITtoolbox.com]
Sent: 8. august 2010 07:57
To: Lars-Erik Hallsten
Subject: RE: [sap-basis] oracle data files ( not log files )
Posted by D. Caddick (SAP NetWeaver/BASIS Consultant)
on Aug 8 at 7:27 AM Mark as helpful
Hi Lars-Erik,
I was on a project where after advice from HP we created a LUN for two data files. We had 12 data files therefore 6 LUNs we then created mount points and mounted them to sub folders on a single Drive letter:
E:\data1
E:\data2
E:\data3
...etc
This then improved the I/O quite considerably
Regards
From: Lars-Erik Hallsten via sap-basis [mailto:sap-basis@Groups.ITtoolbox.com]
Sent: 07 August 2010 16:29
To: D. Caddick
Subject: RE: [sap-basis] oracle data files ( not log files )
Posted by Lars-Erik Hallsten (CEO & Senior Consultant)
on Aug 7 at 11:47 AM Mark as helpful
Hi,
I think most installations which uses a SAN to store the data files, put all the data files in a single LUN on the SAN.
Regards,
LEH
From: mark_me via sap-basis [mailto:sap-basis@Groups.ITtoolbox.com]
Sent: 7. august 2010 13:40
To: Lars-Erik Hallsten
Subject: RE:[sap-basis] oracle data files ( not log files )
Posted by mark_me (Basis consultant)
on Aug 7 at 10:55 AM Mark as helpful
Apologies for being not clear ,
My question is related to SAP DAT Files only ( no log, archive files ), My OS is windows 2008 and DB is ORACLE.
I just wants to know that does only for SAP DATA FILES , do we use different partitions for a PRD environment ?
I have created few partitions from SAN for ECC PRD environment for log files and sap executable , however for SAP DATA files i have taken a single partition.
I just wants to know that what is the best practice for PRD environment for SAP DATA Files.
Right now I have taken only one partition for SAP DATA FILES.
Regards
---------------Original Message---------------
From: mark_me
Sent: Saturday, July 31, 2010 10:15 AM
Subject: oracle data files ( not log files )
> In an typical PRD environment , the sap data files ( not log files) should be taken in single partition or different partitions. we do have log partitions different on RAID1 .
> Please advice.
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