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Installing Centos 0S 5.5 64 bit on a New HP 360 G7

I just opened the box to my bran new HP 360 G7 server that has 2x 500 GIG SAS drives.
I am getting ready to install the os but not sure if I have to do anything to configure my RAID.

I want RAID 1

Could someone please let me know if there is anything I have to do for this or can I just pop the centos os disk in and start installing also
how should I partation 500 gig's considering that I also want DRBD on this system

Its a web email and mysql server
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Kerem ERSOY

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I have an HP 360 G7

Not sure if it has a battery backup Raid controller is a Smart Array P410
What do you mean by this

"If you don't have any battery backed up "Smart""

Are you referring to an up's battery backup like an APC?

Or an internal battery that would go into the server?
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Ok here is my read out

Drive /dev/cciss/c0d0 (476906 MB ) Model: Compaq Smart Array
cciss/c0d0p2
476804 MB


LVM Volume Groups

            VolGroup00
                  LogVol00                             /                               ext3            468832
                  LogVol01
Hard Drives
           /dev/cciss/c0d0p1                      /boot                        ext3              101                  1          13
           /dev/cciss/c0d0p2                     VolGroup00               LVM PV           476804            14           60797
I tried BOOT disk but it was only giving me options of Windows to install but I don't want windows so I stopped.

Couldn't find in bio's where to configure it?
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It is not in Sytem BIOS but it is displayed during the BOOT sequence.. It most be printing the Smart Array type during the boot sequence too..
So a little confused here guys.

Can I use both hardware and software raid?
If I use software raid is there any performance issues?

Am I using raid right now and how can I tell?
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So what you guys are recommending is software RAID?????
Will software RAID impact my performance?

Sorry a little slow but I think I am understand just want to make sure I am understanding correctly.
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Thanks I guess what you're saying is if software RAID is used you can add to it much more easily then hardware raid right?

Thanks
Not realy, your system is limited by the number of Hard drives you can attached to it or whether you will be using FC/iSCSI to make additional storage resources.
The HW raid offloads the synchronization of the data on DISK1 and disk2 to the controller. In software RAID, the read/writes and management of the synchronization of data accross the hard drives is done by and within the OS.
HW raid such as HP smartarray, etc. can have drives/volumes added on the fly. Using the HP tools on the Centos box will make the newly created volume available and would require that you perform partition/lvm etc. of the new volume depending on its use.
ok thanks
Thanks for the help learned alot today.

I did all this work 6 years ago and not sure what I did but I think this time I am taking everything in more carefully then before and researching my options. as to prevent costly mistakes later
Pluss 6 years ago I forgot How I even started LOL :)

Thanks everyone