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1 | .. -*- coding: utf-8-with-signature -*- |
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2 | |
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3 | ========================= |
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4 | Filesystem-specific notes |
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5 | ========================= |
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6 | |
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7 | 1. ext3_ |
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8 | |
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9 | Tahoe storage servers use a large number of subdirectories to store their |
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10 | shares on local disk. This format is simple and robust, but depends upon the |
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11 | local filesystem to provide fast access to those directories. |
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12 | |
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13 | ext3 |
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14 | ==== |
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15 | |
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16 | For moderate- or large-sized storage servers, you'll want to make sure the |
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17 | "directory index" feature is enabled on your ext3 directories, otherwise |
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18 | share lookup may be very slow. Recent versions of ext3 enable this |
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19 | automatically, but older filesystems may not have it enabled:: |
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20 | |
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21 | $ sudo tune2fs -l /dev/sda1 |grep feature |
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22 | Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file |
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23 | |
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24 | If "dir_index" is present in the "features:" line, then you're all set. If |
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25 | not, you'll need to use tune2fs and e2fsck to enable and build the index. See |
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26 | `http://wiki2.dovecot.org/MailboxFormat/Maildir`_ for some hints. |
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27 | |
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28 | .. _`http://wiki2.dovecot.org/MailboxFormat/Maildir`: http://wiki2.dovecot.org/MailboxFormat/Maildir |
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