I have a volume group, which has a size of approximately 30 TByte. It has an EXT3 File System on it: SERVER:/home/usfman # dumpe2fs -h /dev/mapper/datavg-foolvdumpe2fs 1.41.9 (22-Aug-2009)Filesystem volume name:   <none>Last mounted on:          <not available>Filesystem UUID:          censoredFilesystem magic number:  0xEF53Filesystem revision #:    1 (dynamic)Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_fileFilesystem flags:         signed_directory_hash Default mount options:    (none)Filesystem state:         cleanErrors behavior:          ContinueFilesystem OS type:       LinuxInode count:              289669120Block count:              1158676480Reserved block count:     57920704Free blocks:              216859296Free inodes:              289592213First block:              0Block size:               4096Fragment size:            4096Reserved GDT blocks:      747Blocks per group:         32768Fragments per group:      32768Inodes per group:         8192Inode blocks per group:   512Filesystem created:       censoredLast mount time:          censoredLast write time:          censoredMount count:              5Maximum mount count:      33Last checked:             censoredCheck interval:           15552000 (6 months)Next check after:         censoredReserved blocks uid:      0 (user root)Reserved blocks gid:      0 (group root)First inode:              11Inode size:           256Required extra isize:     28Desired extra isize:      28Journal inode:            8Default directory hash:   half_md4Directory Hash Seed:      censoredJournal backup:           inode blocksJournal size:             128MSERVER:/home/usfman # Question: Can we increase this FS from 4.3TB to ~13 TByte? Or there will be some limitions on the maximum size? The EXT3 Wiki page suggests the maximum size could be from 4 to 32 TByte. Can someone clarify?https://en.wikipedia.org/wiki/Ext3UPDATE: -->> Block size:               4096So 16 TByte is the maximum FS size with 4K blocks. I just need that someone confirms this wiki link. SLES 11, 64 bit kernel
Are there any size restrictions when increasing an EXT3 File System?
ext3
This gives you an overview of maximum file size https://access.redhat.com/solutions/1532 . You may want to think about upgrading ext3 to ext4 https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/ext4converting.html . So 13 TB should go fine if your kernel is not too old, e.g. you are running SLES 11, SP4.