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meez
n00b
Joined: 25 Jul 2004
Posts: 33
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 Posted: Fri Jan 23, 2009 8:37 pm Post subject: df -h showing wrong filesystem size |
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Hi everybody,
today I got my two new Dell 2650 Storage Server with 6x 1.5TB discs.
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>df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 94G 2.2G 92G 3% /
udev 10M 144K 9.9M 2% /dev
shm 2.0G 0 2.0G 0% /dev/shm
/dev/sdb1 742G 4.2M 742G 1% /storage-1
>df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 98221624 2259344 95962280 3% /
udev 10240 144 10096 2% /dev
shm 2026664 0 2026664 0% /dev/shm
/dev/sdb1 778008916 4256 778004660 1% /storage-1
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The device /dev/sdb1 has about 7,4T, but is shown is 742G at df -h, df only shows right size?
is this a bug? Filesystem is XFS
Thanks,
Martin |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54805
Location: 56N 3W
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| Posted: Fri Jan 23, 2009 8:48 pm Post subject: |
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meez,
With what tool did you make the partition /dev/sdb1 ?
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NeddySeagoon
Computer users fall into two groups:-
those that do backups
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HeissFuss
Guru
Joined: 11 Jan 2005
Posts: 414
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| Posted: Fri Jan 23, 2009 9:22 pm Post subject: |
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Both dfs show 742GB...
Since you partitioned your device (sdb1) you need to use GPT partition type to get that size. Your other option is to stick the xfs filesystem directly on the raw /dev/sdb device. |
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timeBandit
Bodhisattva
Joined: 31 Dec 2004
Posts: 2719
Location: here, there or in transit
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| Posted: Fri Jan 23, 2009 9:23 pm Post subject: Re: df -h showing wrong filesystem size |
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| meez wrote: | | Code: | >df -h
/dev/sdb1 742G 4.2M 742G 1% /storage-1
>df
/dev/sdb1 778008916 4256 778004660 1% /storage-1 |
The device /dev/sdb1 has about 7,4T, but is shown is 742G at df -h, df only shows right size? |
1) df and df -h are in agreement: 778008916 blocks * 1024 bytes/block = 741.97 GB.
2) See this thread for some things to consider when creating very large partitions (> 2TB).
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meez
n00b
Joined: 25 Jul 2004
Posts: 33
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| Posted: Fri Jan 23, 2009 9:25 pm Post subject: my fault |
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ok ok. First think then ask.
I found the problem with fdisk / cfdisk
but now I used parted 
| Code: |
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 94G 2.2G 92G 3% /
udev 10M 144K 9.9M 2% /dev
shm 2.0G 0 2.0G 0% /dev/shm
/dev/sdb1 6.8T 4.3M 6.8T 1% /storage-1
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Looks much more better
many thanks for such quick answers,
Martin |
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