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2012/12/25 Mark Knecht <markknecht@×××××.com>: |
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> Upgrading an external USB2 drive at home this Christmas morning to |
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> 1TB for more video storage space. One large partition, non-raid, files |
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> are around 1GB. The drive holds only static video files that get |
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> written once and don't change or get erased. No MythTV stuff or |
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> anything like that. |
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> |
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> This disk reside on my main desktop machine and gets backed up |
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> every couple of days to another USB2 drive (FAT formatted |
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> unfortunately) which attaches to the TV. |
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Well in your usage case ext3 is still well suited enough. |
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Ext4 though is the superior filesystem, since it is more advanced in |
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technical terms. Maximum file system size in ext3 is around 16 |
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Terabyte, something not so far ahead now even more in homes. Ext4 has |
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the maximum file system size of 1024 Petabyte. |
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ext4 also uses extents, which ext3 has not - meaning file system |
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checks are able to run faster. Erasing big files on ext4 works |
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therefore faster than on ext3. It also tends to fragment less than |
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ext3. |
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ext4 has persistent preallocation when writing large files, meaning |
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space is being guaranteed and most probably contiguous. |
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tl;dr: ext3 should be well suited enough for your computer, but if you |
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can reformat your hard disk drive, using ext4 will not hurt either and |
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you gain some faster speed. |
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