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Old 12-23-2006, 01:24 AM   #1
bookgekgom
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Registered: Dec 2006
Posts: 41

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teach me some more about LVM T_T


i installed FC6 with 2x250gb sataII
hard drives.
i opened terminal.
typed.
lvdisplay

--------------------------------------------------------------
File descriptor 11 left open
--- Logical volume ---
LV Name /dev/VolGroup00/LogVol00
VG Name VolGroup00
LV UUID DnwMvJ-KKBQ-pRe9-atXH-iCil-Ky9h-rsIzI8
LV Write Access read/write
LV Status available
# open 1
LV Size 463.66 GB
Current LE 14837
Segments 2
Allocation inherit
Read ahead sectors 0
Block device 253:0

--- Logical volume ---
LV Name /dev/VolGroup00/LogVol01
VG Name VolGroup00
LV UUID WdsodE-lVZT-k2MD-V17q-H5EM-8Saw-rHJrfc
LV Write Access read/write
LV Status available
# open 1
LV Size 1.94 GB
Current LE 62
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1
----------------------------------------------------------------------------------------
so... "/dev/VolGroup00/LogVol00" must be my 2 hard drives(2x250gb)...
"/dev/VolGroup00/LogVol01" must be the swap.

im worrying about if one hard drive will be full(Fedora core w/ my extrafiles)
will not crash?

so i am trying to seperate 2 hard drives....
one for system and another for my extra stuff....

so, there are 2 qustions.

1.if i download (lets say 250gb file) on Desktop...those files will be saved on only one drive and the drive will be full then, my system will be crashed? or the file will automatically go to other hard drive?

2. if i can, how can i seperate 2 hard drives?

--------------------------------------------------------------------------------------------------------extra
typed fdisk -l


Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 30401 244091610 8e Linux LVM

Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 30401 244196001 8e Linux LVM
-----------------------------------------------------------------------------------------
End.

Last edited by bookgekgom; 12-23-2006 at 01:32 AM.
 
Old 12-23-2006, 04:54 AM   #2
uselpa
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Registered: Oct 2004
Location: Luxemburg
Distribution: Slackware, OS X
Posts: 1,507

Rep: Reputation: 46
Have a look at the HOWTO. You need to understand the notions of Volume Group, Physical Volume and Logical Volume and then see how these were defined on your system.

But basically - LVM is the most flexible way of partitionning your harddisk(s). If a LV spans 2 or more physical disks, nothing will crash if one disk gets full. On the contrary, the system will just use the next harddisk.

My advice: no NOT touch your current setup until you have understood how LVM2 works. Especially do NOT separate anything. It is very likely that you have the best setup already. Go through the HOWTO, and if you have any questions left, post them here.
 
Old 12-23-2006, 03:26 PM   #3
bookgekgom
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Registered: Dec 2006
Posts: 41

Original Poster
Rep: Reputation: 15
actually i read whole thing, after potst that.

i read lvm make 2 different partitions into one group and give space for different sections..
hm...
i was just confused with windows.
cuz if a hard disk is full, ur pc will get really slow in window...
however i dun think it will happen to linux since it has swap partition already?
(or maybe i am wrong..)
hm...yes, i wont touch the setting hehe let me go download some pr0ns.
 
  


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