* Cannot write file larger than 2TB on x86_64?
@ 2007-07-25 13:15 Justin Piszcz
2007-07-25 13:16 ` Justin Piszcz
0 siblings, 1 reply; 3+ messages in thread
From: Justin Piszcz @ 2007-07-25 13:15 UTC (permalink / raw)
To: linux-kernel
The kernel is 2.6.9-42.ELsmp on RHEL4 x86_64.
servername$ dd if=/dev/zero of=4.8tb_file bs=1M count=4800000
File size limit exceeded
servername$ (stopped at 2TB)
The 64bit should not need the option obviously, because it is 64bit, is this a b
ug in the kernel?
For 32bit:
.config - Linux Kernel v2.6.22 Configuration
..............................................................................
..................... Support for Large Single Files ......................
. CONFIG_LSF: .
. .
. Say Y here if you want to be able to handle very large files (bigger .
. than 2TB), otherwise say N. .
. .
. If unsure, say Y. .
.
For 64bit:
.config - Linux Kernel v2.6.22 Configuration
..............................................................................
............................... Block layer ...............................
. Arrow keys navigate the menu. <Enter> selects submenus --->. .
. Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, .
. <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> .
. for Search. Legend: [*] built-in [ ] excluded <M> module < > .
. ....................................................................... .
. . --- Enable the block layer . .
. . [ ] Support for tracing block io actions . .
. . IO Schedulers ---> . .
. .
.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Cannot write file larger than 2TB on x86_64?
2007-07-25 13:15 Cannot write file larger than 2TB on x86_64? Justin Piszcz
@ 2007-07-25 13:16 ` Justin Piszcz
2007-07-25 13:19 ` Justin Piszcz
0 siblings, 1 reply; 3+ messages in thread
From: Justin Piszcz @ 2007-07-25 13:16 UTC (permalink / raw)
To: linux-kernel
Erm, unless this is an EXT3 limitation--oops..
On Wed, 25 Jul 2007, Justin Piszcz wrote:
> The kernel is 2.6.9-42.ELsmp on RHEL4 x86_64.
>
> servername$ dd if=/dev/zero of=4.8tb_file bs=1M count=4800000
> File size limit exceeded
> servername$ (stopped at 2TB)
>
> The 64bit should not need the option obviously, because it is 64bit, is this
> a b
> ug in the kernel?
>
> For 32bit:
> .config - Linux Kernel v2.6.22 Configuration
> ..............................................................................
> ..................... Support for Large Single Files ......................
> . CONFIG_LSF: .
> . .
> . Say Y here if you want to be able to handle very large files (bigger .
> . than 2TB), otherwise say N. .
> . .
> . If unsure, say Y. .
> .
>
> For 64bit:
> .config - Linux Kernel v2.6.22 Configuration
> ..............................................................................
> ............................... Block layer ...............................
> . Arrow keys navigate the menu. <Enter> selects submenus --->. .
> . Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, .
> . <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> .
> . for Search. Legend: [*] built-in [ ] excluded <M> module < > .
> . ....................................................................... .
> . . --- Enable the block layer . .
> . . [ ] Support for tracing block io actions . .
> . . IO Schedulers ---> . .
> . .
> .
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Cannot write file larger than 2TB on x86_64?
2007-07-25 13:16 ` Justin Piszcz
@ 2007-07-25 13:19 ` Justin Piszcz
0 siblings, 0 replies; 3+ messages in thread
From: Justin Piszcz @ 2007-07-25 13:19 UTC (permalink / raw)
To: linux-kernel
Filesystem File Size Limit Filesystem Size Limit ext2/ext3 with 1 KiB
blocksize 16448 MiB (~ 16 GiB) 2048 GiB (= 2 TiB) ext2/3 with 2 KiB
blocksize 256 GiB 8192 GiB (= 8 TiB) ext2/3 with 4 KiB blocksize 2048 GiB
(= 2 TiB) 8192 GiB (= 8 TiB)
http://www.suse.de/~aj/linux_lfs.html
That's the problem, nevermind!
On Wed, 25 Jul 2007, Justin Piszcz wrote:
> Erm, unless this is an EXT3 limitation--oops..
>
> On Wed, 25 Jul 2007, Justin Piszcz wrote:
>
>> The kernel is 2.6.9-42.ELsmp on RHEL4 x86_64.
>>
>> servername$ dd if=/dev/zero of=4.8tb_file bs=1M count=4800000
>> File size limit exceeded
>> servername$ (stopped at 2TB)
>>
>> The 64bit should not need the option obviously, because it is 64bit, is
>> this a b
>> ug in the kernel?
>>
>> For 32bit:
>> .config - Linux Kernel v2.6.22 Configuration
>> ..............................................................................
>> ..................... Support for Large Single Files
>> ......................
>> . CONFIG_LSF:
>> .
>> .
>> .
>> . Say Y here if you want to be able to handle very large files (bigger
>> .
>> . than 2TB), otherwise say N.
>> .
>> .
>> .
>> . If unsure, say Y.
>> .
>> .
>>
>> For 64bit:
>> .config - Linux Kernel v2.6.22 Configuration
>> ..............................................................................
>> ............................... Block layer
>> ...............................
>> . Arrow keys navigate the menu. <Enter> selects submenus --->.
>> .
>> . Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes,
>> .
>> . <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </>
>> .
>> . for Search. Legend: [*] built-in [ ] excluded <M> module < >
>> .
>> . .......................................................................
>> .
>> . . --- Enable the block layer .
>> .
>> . . [ ] Support for tracing block io actions .
>> .
>> . . IO Schedulers ---> .
>> .
>> . .
>> .
>>
>>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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