Messages in this thread | | | From | "lk" <> | Subject | Re: File and partition sizes | Date | Thu, 28 Apr 2005 04:40:06 -0700 |
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the table which shows the size limits depending upon the files system...
___________________________________________________________ File System File Size [Byte] File System Size [Byte] ____________________________________________________________ Ext2 or Ext3 (1 kB block size) 2^34 (16 GB) 2^41 (2 TB) Ext2 or Ext3 (2 kB block size) 2^38 (256 GB) 2^43 (8 TB) Ext2 or Ext3 (4 kB block size) 2^41 (2 TB) 2^44 (16 TB) Ext2 or Ext3 (8 kB block size) 2^46 (64 TB) 2^45 (32 TB) ReiserFS 3.5 2^32 (4 GB) 2^44 (16 TB) ReiserFS 3.6 (under Linux 2.4) 2^60 (1 EB) 2^44 (16 TB) XFS 2^63 (8 EB) 2^63 (8 EB) JFS (512 Bytes block size) 2^63 (8 EB) 2^49 (512 TB) JFS (4 kB block size) 2^63 (8 EB) 2^52 (4 PB) NFSv2 (client side) 2^31 (2 GB) 2^63 (8 EB) NFSv3 (client side) 2^63 (8 EB) 2^63 (8 EB) ____________________________________________________________
apart from this the following kernel limits exist:
On 32-bit systems with Kernel 2.4.x: The size of a file and a block device is limited to 2 TiB. By using LVM several block devices can be combined enabling the handling of larger file systems.
64-bit systems: The sizes of a filesytem and of a file are limited by 2^63 (8 EiB). But there might be hardware driver limits that do not allow to access such large devices.
Kernel 2.6: For both 32-bit systems with option CONFIG_LBD set and for 64-bit systems: The size of a file system is limited to 2^73 (far too much for today). On 32-bit systems (without CONFIG_LBD set) the size of a file is limited to 2 TiB. Note that not all filesystems and hardware drivers might handle such large filesystems.
regards
lk
----- Original Message ----- From: "Iwan Sanders" <iwan.sanders@tuxproject.info> To: <linux-kernel@vger.kernel.org> Sent: Thursday, April 28, 2005 2:08 AM Subject: File and partition sizes
> Hi, > > I am examining the large file support in Linux. A couple of questions > remained unanswered that's why I thought to > ask the experts ;-) > > I was wondering what the current size limitation of a partition is and > what kernel versions will allow files larger then > 4 GB and why they do that. > > Regards, > > Iwan Sanders > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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