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Fresh install [message #493994] Thu, 10 February 2011 14:23 Go to next message
Tr0cken
Messages: 22
Registered: August 2010
Junior Member
Hi all,

I'm about to install a new DB Server. Oracle 11G Standard on RHEL5. The storage available are 6 146Gb SAS 15k disks. The server is hardware RAID capable.
What would it be the best configuration regarding RAIDs and separation of SO, DB engine, tables, indexes, redologs, etc?

Thanks in advance.

[Updated on: Thu, 10 February 2011 14:27]

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Re: Fresh install [message #493995 is a reply to message #493994] Thu, 10 February 2011 14:30 Go to previous messageGo to next message
BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal
Senior Member
>What would it be the best configuration regarding RAIDs
quantify "best"
Is best the one with most capacity? (RAID-0)
Is best the one with most capacity & redundancy? (RAID-5)
Is best the one with fastest write capability? (RAID-1)
Re: Fresh install [message #493996 is a reply to message #493995] Thu, 10 February 2011 14:37 Go to previous messageGo to next message
Michel Cadot
Messages: 68648
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
One word: S.A.M.E.
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:4433784236146
http://download.oracle.com/docs/cd/B28359_01/server.111/b32024/vldb_storage.htm

Regards
Michel
Re: Fresh install [message #494198 is a reply to message #493996] Fri, 11 February 2011 13:56 Go to previous messageGo to next message
Tr0cken
Messages: 22
Registered: August 2010
Junior Member
Thank you for your answers.
My main concern right now is performance.
So lets say I make a hardware RAID 0+1 array with all of the disks (400GB total available) and then:
Partition                        Mount Point      File system      Size
/dev/sda1                        /boot            ext3             150 MB
/dev/sda2                        swap             swap             16 GB
/dev/mapper/vg_root/lv_root      /                ext3             15 GB
/dev/mapper/vg_root/lv_var       /var             ext3             10 GB
/dev/mapper/vg_root/lv_tmp       /tmp             ext3             10 GB
/dev/mapper/vg_root/lv_u01       /u01             ext3             15 GB Oracle Engine
/dev/sdc1                        /u02             ext3             20 GB - System datafiles/Temp
/dev/sdd1                        /u03             ext3             200 GB - Tables/Indexes
/dev/sde1                        /u04             ext3             512 MB - Redo logs
/dev/sdf1                        /u05             ext3             512 MB - Redo logs
/dev/sdg1                        /u06             ext3             512 MB - Redo logs
/dev/sdh1                        /u07             ext3             30 GB - Archive logs
/dev/sdi1                        /u08             ext3             100 GB - Data pump, etc


Would this be a good practice? Do you recomend separating something further or differently?

Thank you very much.
Re: Fresh install [message #494200 is a reply to message #494198] Fri, 11 February 2011 14:23 Go to previous message
Michel Cadot
Messages: 68648
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
If your disk under these file systems are RAID 0+1, it does not matter (from performances point of view) how you put them at OS level, you can use a single file system (or 2 one short stripe for redo logs and large stripe for data files).
The best way is to use ASM and let Oracle manages this point.

Regards
Michel

[Updated on: Fri, 11 February 2011 14:24]

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