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Andrea Conti writes: |
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> > AFAIK you will gain more inodes when you increase the size. |
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> |
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> Only because by unless you specify a value mke2fs allocates a number of |
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> inodes proportional to the size of the filesystem, with the default |
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> being 1 inode every 16kB (see /etc/mke2fs.conf). |
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> |
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> But for ext[234] the number of inodes is fixed at filesystem creation, |
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> so even if you use LVM you can't increase it by -- say -- growing the |
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> underlying LV and then using resize2fs. |
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|
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So I just tried that, create a small fs, filled it until no inodes were |
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left. Resized, and gained more inodes: |
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|
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weird ~ # lvcreate -L 4M -n inodetest weird |
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Logical volume "inodetest" created |
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|
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weird ~ # mke2fs -j /dev/weird/inodetest |
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mke2fs 1.41.14 (22-Dec-2010) |
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Filesystem label= |
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OS type: Linux |
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Block size=1024 (log=0) |
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Fragment size=1024 (log=0) |
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Stride=0 blocks, Stripe width=0 blocks |
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1024 inodes, 4096 blocks |
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[...] |
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|
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weird ~ # mount /dev/weird/inodetest /mnt/ |
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|
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weird ~ # for (( i=1; ; i++ )) |
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> do |
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> touch "/mnt/$( printf "file %06d" $i )" || break |
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> done |
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touch: cannot touch `/mnt/file 001014': No space left on device |
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|
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weird ~ # df -i /mnt/ |
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Filesystem Inodes IUsed IFree IUse% Mounted on |
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/dev/mapper/weird-inodetest 1024 1024 0 100% /mnt |
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|
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weird ~ # lvresize -L 16M /dev/weird/inodetest |
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Extending logical volume inodetest to 16,00 MiB |
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Logical volume inodetest successfully resized |
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|
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weird ~ # resize2fs /dev/weird/inodetest |
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resize2fs 1.41.14 (22-Dec-2010) |
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Filesystem at /dev/weird/inodetest is mounted on /mnt; on-line resizing |
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required |
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old desc_blocks = 1, new_desc_blocks = 1 |
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Performing an on-line resize of /dev/weird/inodetest to 16384 (1k) blocks. |
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The filesystem on /dev/weird/inodetest is now 16384 blocks long. |
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|
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weird ~ # df -i /mnt/ |
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Filesystem Inodes IUsed IFree IUse% Mounted on |
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/dev/mapper/weird-inodetest 2048 1024 1024 50% /mnt |
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|
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Wonko |
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