03-04-2011, 11:48 AM
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Aspiring Evangelist
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Join Date: Jan 2011
Posts: 447
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How to make software RAID1 on CentOS?
on freeBSD, GEOM seems a good RAID1 solution
what about centOS? what method is good? how to do it an dany how to please? Do you use mobo's onboard raid function though ?
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03-04-2011, 11:51 AM
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Web Hosting Master
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Join Date: Feb 2003
Location: Detroit
Posts: 795
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For software raid you can set it up in the installer. Just make a simple 3 partition (or more as needed) and create a raid.
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03-04-2011, 11:58 AM
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Aspiring Evangelist
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Join Date: Jan 2011
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you meant when we install centos, there is a option for that during process?
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03-04-2011, 12:04 PM
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Web Hosting Master
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Join Date: Feb 2003
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Quote:
Originally Posted by Peter-SZ
you meant when we install centos, there is a option for that during process?
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Yes. If you use the partition editor you can create raids. Create a partition on each disk, then select raid and configure the raid options. I usually do this for /boot, swap, and / and it supports raid 0,1,5,6,10
This can be done on installation, manually. By default it will give you an LVM but the options are there if you review the layout.
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03-04-2011, 12:07 PM
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Head Geek
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Join Date: Aug 2004
Location: Austin, TX
Posts: 2,562
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Make sure you set your drives correctly (ahci vs ide) and also configure boot loader correctly so that you can boot if either drive fails / is replaced. Test, test, test, before deployment.
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03-04-2011, 12:41 PM
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Aspiring Evangelist
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Join Date: Jan 2011
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Quote:
Originally Posted by gordonrp
Make sure you set your drives correctly (ahci vs ide) and also configure boot loader correctly so that you can boot if either drive fails / is replaced. Test, test, test, before deployment.
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shall we go with AHCI?
how to configure loader correctly? could you be more specific
thanks!
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03-04-2011, 12:45 PM
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Head Geek
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Join Date: Aug 2004
Location: Austin, TX
Posts: 2,562
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You can have issues in IDE mode with the drives having to be in a certain "order", yes ahci is suggested. Here is a basic setup doc: http://www.slideshare.net/poustchi/i...entos-5-raid-1
Check you can boot from both drives when done, otherwise google "centos software raid boot grub." While you're at it, practice the rebuild process also ( one command after adding disk).
Any experienced admin can do this for you for a fee, if you have any more specific questions I'm sure people will help here.
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03-04-2011, 12:52 PM
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Aspiring Evangelist
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Join Date: Jan 2011
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Gordon, thanks for these!
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