At Sun, 13 Feb 2011 13:07:09 -0800 CentOS mailing list <centos at centos.org> wrote: > > > > Setting: > We are setting up a low usage server for an alfresco km/collaboration system > It is a low-end server with a pair of 1.5 TB disks we will be mirroring > The server comes with Intel's on-board 'fake raid/ low-end RAID' capability > and for price reasons we have not selected a mainstream RAID card > > Prior thoughts: > Searches on the net indicate no performance advantage, and possible > performance disadvantages to the on-board RAID > I expect Intel & the Centos product to be rough equivalents in quality > > I am leaning to software RAID for a simple reason of minimizing my > administration & operational burden. If I need to perform repairs, obtain > alerts it is the same administration toolset rather than a BIOS-based tool > that seems to be accessible only through boot/ reboot. > > Question: > Over a reasonable lifecycle are we better served going with the on-board or > Centos' software RAID? > Any issue with booting from the RAID (obviously RAID 1)? You are always going to be better off using Linux (CentOS) software RAID. There are no issues with booting off a RAID 1. You'll create two partitions on the disks: a small one for /boot and the rest to be a LVM volume group (carved into swap, /, and your data and/or /home). You'll make two RAID sets, one for /boot and the other for the LVM volume group. The only trickyness is to be sure to install grub on both disks -- this lets you boot off /dev/sdb if/when /dev/sda dies. > > Thanks in advance for your thoughts. > > Dave > > > > MIME-Version: 1.0 > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 / heller at deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments