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<translate> | <translate> | ||
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[[Ploop]] images has the following limits: | [[Ploop]] images has the following limits: | ||
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* Number of snapshots: 126 | * Number of snapshots: 126 | ||
* Image size: | * Image size: | ||
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* Inner ext4 file system size: currently set to 16 TB | * Inner ext4 file system size: currently set to 16 TB | ||
| − | == Conversion == | + | == Conversion == |
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Use ploop convert tool to convert from ploop v1 to ploop v2 image. | Use ploop convert tool to convert from ploop v1 to ploop v2 image. | ||
| − | == Internals == | + | == Internals == |
| − | === Image size limit === | + | === Image size limit === |
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Ploop v1 image size limitation comes from the fact that unsigned 32 bit integer | Ploop v1 image size limitation comes from the fact that unsigned 32 bit integer | ||
is used to store sector address inside the ploop image. Therefore the maximum | is used to store sector address inside the ploop image. Therefore the maximum | ||
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used for header and L2 translation table, maximum image size is decreased by 1MB. | used for header and L2 translation table, maximum image size is decreased by 1MB. | ||
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Ploop v2 uses the same unsigned 32 bit field to address blocks rather than sectors. | Ploop v2 uses the same unsigned 32 bit field to address blocks rather than sectors. | ||
Block size itself is measured in 512 byte sectors, and can be specified during image creation. | Block size itself is measured in 512 byte sectors, and can be specified during image creation. | ||
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used for header and L2 translation table, maximum image size is decreased by 1MB. | used for header and L2 translation table, maximum image size is decreased by 1MB. | ||
| − | === Filesystem size limit === | + | === Filesystem size limit === |
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Currently ext4 file system is used. An ability to resize ext4 is limited by | Currently ext4 file system is used. An ability to resize ext4 is limited by | ||
its block group descriptor table, which size can be specified during file | its block group descriptor table, which size can be specified during file | ||
