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Old 09-17-2010, 11:23 AM   #1
adiehl
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Large Filesystem (about 24TB)


Hi,

I want to create a filesystem on a 24 TB partition, but I can't.
So what filesystem should I use, and how should I create and mount it?

I'm using Centos 5.5 on a x86 Machine, partition table is GPT, created with parted.

I tried the following:

1. Create the praised ext4 filesystem:
Code:
# mkfs.ext4 /dev/sde3
mke4fs 1.41.9 (22-Aug-2009)
mkfs.ext4: Size of device /dev/sde3 too big to be expressed in 32 bits
	using a blocksize of 4096.
--> failed
Then I forced a block size of 8192 .. worked but mounting crashed the machine.
AFAIK, the mkfs does not support > 16 TB.

2. Create xfs which should handle it:
Code:
# mkfs.xfs /dev/sde3
meta-data=/dev/sde3              isize=256    agcount=32, agsize=175303405 blks
         =                       sectsz=512   attr=0
data     =                       bsize=4096   blocks=5609708960, imaxpct=25
         =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096  
log      =internal log           bsize=4096   blocks=32768, version=1
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0

# mount /dev/sde3 /data
mount: Argument list too long
Any ideas?

PS: I don't care about what filesystem to use, but it should support quota.
 
Old 09-17-2010, 08:33 PM   #2
AsusDave
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Searching Google for argument too long shows quite a few hits. Evidently you are hitting a limitation of x86 architecture. Switching to _64 (if possible) and using XFS should work for you.

HTH
Dave
 
Old 09-17-2010, 08:45 PM   #3
HasC
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ext4? btrfs? take a look at http://en.wikipedia.org/wiki/File_sy...parison#Limits
 
Old 09-17-2010, 09:29 PM   #4
michaelk
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Also have a look at jfs.

xfs is not capable of >16TB without a 64bit system and like you have found out the ext utilities can not support >16TB yet.

Last edited by michaelk; 09-17-2010 at 09:31 PM.
 
Old 09-18-2010, 08:16 AM   #5
HasC
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Quote:
Originally Posted by michaelk View Post
you have found out the ext utilities can not support >16TB yet.
https://ext4.wiki.kernel.org/index.p...and_File_Sizes
D'oh, you're right
 
Old 09-19-2010, 03:21 PM   #6
adiehl
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Quote:
Originally Posted by michaelk View Post
Also have a look at jfs.

xfs is not capable of >16TB without a 64bit system and like you have found out the ext utilities can not support >16TB yet.
Thanks a lot ... I'll go and buy a x86_64-Bit system now and get xfs running.
 
  


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