X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/77f1129ec53edffb5ed5a859106675cf262977e8..5ac198c8fd7e329b08f344843fa5680add07566c:/doc/user/topics/keep.html.textile.liquid diff --git a/doc/user/topics/keep.html.textile.liquid b/doc/user/topics/keep.html.textile.liquid index f96642937e..9d5cae5afe 100644 --- a/doc/user/topics/keep.html.textile.liquid +++ b/doc/user/topics/keep.html.textile.liquid @@ -4,7 +4,7 @@ navsection: userguide title: "How Keep works" ... -The Arvados distributed file system is called *Keep*. Keep is a content-addressable file system. This means that files are managed using special unique identifiers derived from the _contents_ of the file, rather than human-assigned file names (specifically, the MD5 hash). This has a number of advantages: +The Arvados distributed file system is called *Keep*. Keep is a content-addressable file system. This means that files are managed using special unique identifiers derived from the _contents_ of the file (specifically, the MD5 hash), rather than human-assigned file names. This has a number of advantages: * Files can be stored and replicated across a cluster of servers without requiring a central name server. * Both the server and client systematically validate data integrity because the checksum is built into the identifier. * Data duplication is minimized—two files with the same contents will have in the same identifier, and will not be stored twice. @@ -14,7 +14,7 @@ In Keep, information is stored in *data blocks*. Data blocks are normally betwe In order to reassemble the file, Keep stores a *collection* data block which lists in sequence the data blocks that make up the original file. A collection data block may store the information for multiple files, including a directory structure. -In this example we will use @c1bad4b39ca5a924e481008009d94e32+210@ which we added to Keep in "the first Keep tutorial":{{ site.baseurl }}/user/tutorials/tutorial-keep.html. First let us examine the contents of this collection using @arv keep get@: +In this example we will use @c1bad4b39ca5a924e481008009d94e32+210@, which we added to Keep in "how to upload data":{{ site.baseurl }}/user/tutorials/tutorial-keep.html. First let us examine the contents of this collection using @arv keep get@:
~$ arv keep get c1bad4b39ca5a924e481008009d94e32+210