(I apologize for the ext4 question in an ext3 mailer, but I couldn't find a user list for ext4.)
Per my understanding, ext4 can support file sizes upto 16 TiB if you use 4k blocks. I have a logical volume which uses ext4 with a 4k block size but I am unable to create files that are 8TiB (8796093022208 bytes) or larger.
[root@camanoe] ls -l
total 8589935388
-rw-rw---- 1 root root 8796093022207 2010-03-26 11:43 bigfile
[root@camanoe] echo x >> bigfile
-bash: echo: write error: File too large
[root@camanoe] df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg-mysql_vol
15T 8.1T 5.6T 60% /mysql
[root@camanoe]# tune2fs -l /dev/vg/mysql_vol | grep "Block size"
Block size: 4096
[root@camanoe]# uname -a
Linux camanoe 2.6.29.4-167.fc11.i686.PAE #1 SMP Wed May 27 17:28:22 EDT 2009 i686 i686 i386 GNU/Linux
I'm probably doing something wrong here, but can't figure it out. Any ideas guys? Thanks in advance.
Arun
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