df, lvm and 6TB arrays oh my!
Tony Nelson
tonynelson at georgeanelson.com
Sat Feb 11 20:17:53 UTC 2006
At 11:26 AM -0500 2/11/06, Mark Haney wrote:
>I am having a problem with df reporting the wrong disk size on a couple
>of 7TB arrays on a Fedora box we are using. I have an lvm group on each
>array of 6.36TB when I run df this is what I get:
>
>/dev/mapper/Volume02-Volume02lv
> 2.4T 33M 2.3T 1% /mnt/arrays/array2
>/dev/mapper/Volume03-Volume03lv
> 2.4T 950G 1.3T 43% /mnt/arrays/array1
>
>
>When I run vg display this is what it reports:
>
>pvdisplay PV Name /dev/sdd
>pvdisplay VG Name Volume03
>pvdisplay PV Size 6.36 TB / not usable 6.00 TB
>pvdisplay Allocatable yes (but full)
>pvdisplay PE Size (KByte) 4096
>pvdisplay Total PE 1666397
>pvdisplay Free PE 0
>pvdisplay Allocated PE 1666397
>pvdisplay PV UUID UlaSJI-9Srm-e3AW-LdNW-g2HG-v6ZE-4yWwPw
>pvdisplay
>pvdisplay --- Physical volume ---
>pvdisplay PV Name /dev/sdc
>pvdisplay VG Name Volume02
>pvdisplay PV Size 6.36 TB / not usable 6.00 TB
>pvdisplay Allocatable yes (but full)
>pvdisplay PE Size (KByte) 4096
>pvdisplay Total PE 1666397
>pvdisplay Free PE 0
>pvdisplay Allocated PE 1666397
>pvdisplay PV UUID mK7WWj-UV0p-N6Qc-zhx6-EK3J-g0CO-g65ljs
>
>
>I've looked around for a lvm tool to display the correct sizes, but
>can't find one. Is there something I'm missing?
That's the output from pvdisplay. What does lvdisplay say (or "vgdisplay
-v")? Offhand, the only problem I see in the output shown is "not usable
6.00 TB". I don't know much about LVM.
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' <http://www.georgeanelson.com/>
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