[nflug] centOS 5

David J. Andruczyk djandruczyk at yahoo.com
Sun Nov 11 22:28:29 EST 2007



It's REALLY handy if you use more than just one huge
partition, and need more space..  (lvextend, 
ext2online/resize2fs). 

IF you have plain old partitons, like sda1. sda2. sda3
and so forth,  and sda1, or sda2 is full, you're
pretty well screwed,  however if you had setup with
LVM and if you have free PE's (physical extensts), u
can easily add more, in most cases without even
needing to reboot or taking anything down...

Also with LVM, if you have a drive that is starting to
go (i.e. smartd errors), u can pop in another drive,
add it to your VG, issue a "pvmove" to move all the
data from one drive to the other, while the system is
running, then "vgreduce" the old drive out, and set it
on the desk as a paperweight, all while the system is
live (assuming hotplug scsi/sas, otherwise a powerdown
for the drive insertion/removal)


--- Cyber Source <peter at thecybersource.com> wrote:

> Yep, got ya down for Tuesday. Fedora started
> defaulting to LVM with Core 
> 2, the same time it introduced the 2.6 kernel....ah
> Fedora, always a 
> roller coaster ride. LVM is powerful and like
> anything powerful, you can 
> really hose things if you don't know what your
> doing. I used LVM all the 
> time with Fedora as I swore the systems ran faster
> but that was just a 
> feeling, did no real bench marking. I stopped using
> it when we switched 
> to Ubuntu. I found it to be more of a waste, unless
> your going to string 
> drives together, I see no real advantage.
> 
> eric at bootz.us wrote:
> > I agree.  I have it set to permissive so I don't
> think it's doing 
> > anything except complaining.
> >
> > funnything... the default settings for centOS are
> to LVM partition, I 
> > guess I'll have to get some smarts ...anyone got
> some for sale?  See 
> > you Tues Pete.
> >
> > Quoting "David J. Andruczyk"
> <djandruczyk at yahoo.com>:
> >
> >> I've found selinux to be more of a pain in the
> ass
> >> than anything else..
> >>
> >> disable it via editing /etc/selinux/config.  The
> file
> >> should be commented.
> >>
> >>
> >> --- eric <eric at bootz.us> wrote:
> >>
> >>> Just installed centOS 5 horde suite and all the
> >>> extra gadgets rootkit
> >>> checkers, firewall everything looks good cept a
> >>> couple of complaints
> >>> SELinux is  logging...
> >>> SELinux is telling me that spamassassin is
> trying to
> >>> access potentially
> >>> mislabeled files:
> >>> they are spamassassin"some_long_string" it
> appears
> >>> to be email messages
> >>> marked as spam by spamassassin-sessions?
> >>> And this is probably ok right?
> >>>
> >>> Thanks,
> >>> Eric
> >>> _______________________________________________
> >>> nflug mailing list
> >>> nflug at nflug.org
> >>> http://www.nflug.org/mailman/listinfo/nflug
> >>>
> >>
> >>
> >> -- David J. Andruczyk
> >>
> >>
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> >
> >
> >
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-- David J. Andruczyk

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