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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 01-19-2004, 11:53 AM   #1
unikevin
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Registered: Dec 2003
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Mirroring (Hard Drive to Hard Drive)


If this has already been posted I am sorry. I have tried to make sure it hasn't.

My question is this:

Can you mirror 2 drives in Linux 9.0? Or is there an alternative to doing this?

We want to put in 2 drives (IDE or SCSI, not sure) and have them mirrored with RedHat 9.0 installed. The client does not want to spend a ton of money so this is why I am not going with RAID.

Also for my own peace of mind as well I would like to know if this is able to be done. We want it the same way (if possible) as MS Server does it.

Any help would be greatly appreciated.

Kevin
 
Old 01-19-2004, 12:59 PM   #2
TheOther1
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Registered: Feb 2003
Location: Atlanta, GA
Distribution: RHAS 2.1, RHEL3, RHEL4, SLES 8.3, SLES 9, SLES9_64, SuSE 9.3 Pro, Ubuntu, Gentoo
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Sure, you can do that. If SCSI, you can mirror (hardware) before the install so RH sees only one disk, even though it's a mirrored pair. IDE, you will have to do that in the install when you get to the partitioning phase unless you have an IDE RAID controller.
Quote:
We want it the same way (if possible) as MS Server does it.
Not sure how M$ does software raid, but I bet it's pretty close, except Linux is bound to be better. If HW RAID/mirrored, it will be the same as the OS sees only one drive.
Quote:
Or is there an alternative to doing this?
What are you wanting to get out of it? Speed, data reliability, failover, hot-swap spare? You will get none of those things from software mirroring. (Yes, I know someone will argue this point) HW mirroring will give you data reliability and failover since if one disk dies, the OS knows nothing about it and there is an identical copy of the data on the surviving disk. Just my
 
Old 01-19-2004, 04:31 PM   #3
ryeman
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Registered: Jan 2004
Location: Gainesville, GA
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try looking into RAID for Linux... see this post

http://www.linuxquestions.org/questi...029#post710029
 
  


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