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Merge pull request #482 from trapexit/docs 

change examples to use /mnt rather than /tmp
pull/493/head
trapexit 7 years ago
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50384f4e86 c005463111
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2 changed files with 52 additions and 40 deletions
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  1. 42
      README.md
  2. 50
      man/mergerfs.1

42
README.md
View File

@ -340,30 +340,30 @@ Output: the policy string except for categories where its funcs have multiple ty
##### Example #####
```
[trapexit:/tmp/mount] $ xattr -l .mergerfs
user.mergerfs.srcmounts: /tmp/a:/tmp/b
[trapexit:/mnt/mergerfs] $ xattr -l .mergerfs
user.mergerfs.srcmounts: /mnt/a:/mnt/b
user.mergerfs.minfreespace: 4294967295
user.mergerfs.moveonenospc: false
...
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.category.search .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.category.search .mergerfs
ff
[trapexit:/tmp/mount] $ xattr -w user.mergerfs.category.search newest .mergerfs
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.category.search .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -w user.mergerfs.category.search newest .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.category.search .mergerfs
newest
[trapexit:/tmp/mount] $ xattr -w user.mergerfs.srcmounts +/tmp/c .mergerfs
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.srcmounts .mergerfs
/tmp/a:/tmp/b:/tmp/c
[trapexit:/mnt/mergerfs] $ xattr -w user.mergerfs.srcmounts +/mnt/c .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.srcmounts .mergerfs
/mnt/a:/mnt/b:/mnt/c
[trapexit:/tmp/mount] $ xattr -w user.mergerfs.srcmounts =/tmp/c .mergerfs
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.srcmounts .mergerfs
/tmp/c
[trapexit:/mnt/mergerfs] $ xattr -w user.mergerfs.srcmounts =/mnt/c .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.srcmounts .mergerfs
/mnt/c
[trapexit:/tmp/mount] $ xattr -w user.mergerfs.srcmounts '+</tmp/a:/tmp/b' .mergerfs
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.srcmounts .mergerfs
/tmp/a:/tmp/b:/tmp/c
[trapexit:/mnt/mergerfs] $ xattr -w user.mergerfs.srcmounts '+</mnt/a:/mnt/b' .mergerfs
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.srcmounts .mergerfs
/mnt/a:/mnt/b:/mnt/c
```
#### file / directory xattrs ####
@ -376,15 +376,15 @@ While they won't show up when using [listxattr](http://linux.die.net/man/2/listx
* **user.mergerfs.allpaths:** a NUL ('\0') separated list of full paths to all files found
```
[trapexit:/tmp/mount] $ ls
[trapexit:/mnt/mergerfs] $ ls
A B C
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.fullpath A
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.fullpath A
/mnt/a/full/path/to/A
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.basepath A
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.basepath A
/mnt/a
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.relpath A
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.relpath A
/full/path/to/A
[trapexit:/tmp/mount] $ xattr -p user.mergerfs.allpaths A | tr '\0' '\n'
[trapexit:/mnt/mergerfs] $ xattr -p user.mergerfs.allpaths A | tr '\0' '\n'
/mnt/a/full/path/to/A
/mnt/b/full/path/to/A
```
@ -610,6 +610,10 @@ Using the **hard_remove** option will make it so these temporary files are not u
# FAQ
#### How well does mergerfs scale? Is it "production ready?"
Users have reported running mergerfs on everything from a Raspberry Pi to dual socket Xeon systems with >20 cores. I'm aware of at least a few companies which use mergerfs in production. [Open Media Vault](https://www.openmediavault.org) includes mergerfs is it's sole solution for pooling drives.
#### Can mergerfs be used with drives which already have data / are in use?
Yes. MergerFS is a proxy and does **NOT** interfere with the normal form or function of the drives / mounts / paths it manages.

50
man/mergerfs.1
View File

@ -1,5 +1,5 @@
.\"t
.\" Automatically generated by Pandoc 1.16.0.2
.\" Automatically generated by Pandoc 1.19.2.4
.\"
.TH "mergerfs" "1" "2018\-03\-09" "mergerfs user manual" ""
.hy
@ -700,7 +700,7 @@ $\ sudo\ make\ install
\f[]
.fi
.SH RUNTIME
.SS \&.mergerfs pseudo file
.SS .mergerfs pseudo file
.IP
.nf
\f[C]
@ -796,30 +796,30 @@ In that case it will be a comma separated list
.IP
.nf
\f[C]
[trapexit:/tmp/mount]\ $\ xattr\ \-l\ .mergerfs
user.mergerfs.srcmounts:\ /tmp/a:/tmp/b
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-l\ .mergerfs
user.mergerfs.srcmounts:\ /mnt/a:/mnt/b
user.mergerfs.minfreespace:\ 4294967295
user.mergerfs.moveonenospc:\ false
\&...
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.category.search\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.category.search\ .mergerfs
ff
[trapexit:/tmp/mount]\ $\ xattr\ \-w\ user.mergerfs.category.search\ newest\ .mergerfs
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.category.search\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-w\ user.mergerfs.category.search\ newest\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.category.search\ .mergerfs
newest
[trapexit:/tmp/mount]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ +/tmp/c\ .mergerfs
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/tmp/a:/tmp/b:/tmp/c
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ +/mnt/c\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/mnt/a:/mnt/b:/mnt/c
[trapexit:/tmp/mount]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ =/tmp/c\ .mergerfs
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/tmp/c
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ =/mnt/c\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/mnt/c
[trapexit:/tmp/mount]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ \[aq]+</tmp/a:/tmp/b\[aq]\ .mergerfs
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/tmp/a:/tmp/b:/tmp/c
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-w\ user.mergerfs.srcmounts\ \[aq]+</mnt/a:/mnt/b\[aq]\ .mergerfs
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.srcmounts\ .mergerfs
/mnt/a:/mnt/b:/mnt/c
\f[]
.fi
.SS file / directory xattrs
@ -845,15 +845,15 @@ full paths to all files found
.IP
.nf
\f[C]
[trapexit:/tmp/mount]\ $\ ls
[trapexit:/mnt/mergerfs]\ $\ ls
A\ B\ C
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.fullpath\ A
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.fullpath\ A
/mnt/a/full/path/to/A
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.basepath\ A
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.basepath\ A
/mnt/a
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.relpath\ A
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.relpath\ A
/full/path/to/A
[trapexit:/tmp/mount]\ $\ xattr\ \-p\ user.mergerfs.allpaths\ A\ |\ tr\ \[aq]\\0\[aq]\ \[aq]\\n\[aq]
[trapexit:/mnt/mergerfs]\ $\ xattr\ \-p\ user.mergerfs.allpaths\ A\ |\ tr\ \[aq]\\0\[aq]\ \[aq]\\n\[aq]
/mnt/a/full/path/to/A
/mnt/b/full/path/to/A
\f[]
@ -1309,6 +1309,14 @@ account of the hidden file being still there.
Using the \f[B]hard_remove\f[] option will make it so these temporary
files are not used and files are deleted immedately.
.SH FAQ
.SS How well does mergerfs scale? Is it "production ready?"
.PP
Users have reported running mergerfs on everything from a Raspberry Pi
to dual socket Xeon systems with >20 cores.
I\[aq]m aware of at least a few companies which use mergerfs in
production.
Open Media Vault (https://www.openmediavault.org) includes mergerfs is
it\[aq]s sole solution for pooling drives.
.SS Can mergerfs be used with drives which already have data / are in
use?
.PP

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