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Diffstat (limited to 'doc/upgrades')
| -rw-r--r-- | doc/upgrades/SHA_size.mdwn | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/doc/upgrades/SHA_size.mdwn b/doc/upgrades/SHA_size.mdwn new file mode 100644 index 000000000..319b91108 --- /dev/null +++ b/doc/upgrades/SHA_size.mdwn @@ -0,0 +1,20 @@ +Before version 2 of the git-annex repository, files added to the SHA +[[backends]] did not have their file size tracked, while files added to the +WORM backend did. The file size information is used for disk free space +checking. + +Files added to the SHA backends after the conversion will have their file +size tracked automatically. This disk free space checking is an optional +feature and since you're more likely to be using more recently added files, +you're unlikely to see any bad effect if you do nothing. + +That said, if you have old files added to SHA backends that lack file size +tracking info, here's how you can add that info. After [[upgrading|upgrades]] +to repository version 2, in each repository run: + + git annex migrate + git commit -m 'migrated keys for v2' + +The usual caveats about [[walkthrough/migrating_data_to_a_new_backend]] +apply; you will end up with unused keys that you can later clean up with +`git annex unused`. |