[LinuxUsers] Ubuntu 2nd drive: is lvm safe

[Jeff Lasman]

In my recent thread, ubuntu questions, I discussed the problems with 
software RAID on ubuntu.

I'm still interested in using ubuntu for my office desktop system.  I 
back up important data every night to a hard drive connected via usb.  
It's got it's own separate power supply; I mount it, back up to it, and 
unmount it. So maybe I don't even need software RAID.  In which case 
I've got two 500GB drives to use.  (They're brand new drives, Samsung 
HD502IJ)

How about creating a logical volume with LVM, and using the entire TB?  
Safe?

How about using the second drive as just a second storage drive?

How about using it as in-the-system backup, but only mounting it when 
I'm actually doing the backup and then unmounting it?

Safe vs unsafe compared to what I do now (software RAID, nightly 
backups)?  500GB is really enough space for me; on my current system, 
used since Mandriva LE 2005 came out, I've only used 57G of space.

Jeff
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