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Bug #1255

closed

creating hammer pfs is more complicated than expected

Added by corecode about 15 years ago. Updated about 10 years ago.

Status:
Closed
Priority:
Normal
Assignee:
tuxillo
Category:
manpage
Target version:
3.8
Start date:
Due date:
% Done:

0%

Estimated time:

Description

I just tried to create a pfs, but the information given in the man page was not
sufficient.

Specifically, the correct procedure seems to be:

cd /pfs
hammer pfs-master foo
cd /
mkdir foo
echo "/pfs/foo /foo null rw 0 0" >> /etc/fstab
mount /foo

I did a
hammer pfs-master /foo
which did not yield the desired effect at all.

We either need to document what needs to be done, or add a high level command
(hammer pfs-add?) which performs all these steps.

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 #1

Updated by tuxillo about 11 years ago

  • Status changed from New to In Progress
  • Assignee deleted (0)

Hi,

No no, no more directives to hammer(8) please :)
Agree on that it should be clearer in the manpage tho.

Cheers,
Antonio Huete

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 #2

Updated by tuxillo about 10 years ago

  • Description updated (diff)
  • Category set to manpage
  • Assignee set to tuxillo
  • Target version set to 3.8

Grab.

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 #3

Updated by tuxillo about 10 years ago

  • Status changed from In Progress to Closed

Hi,

With the following commit:

commit 5f22d366f0149afba788dcc6ad06e551840ec1ed
Author: Thomas Nikolajsen <>
Date: Wed Apr 20 00:18:20 2011 +0200

hammer.8: improve general description and markup

There were additions to the manpage. See an excerpt.

pfs-master dirpath [options]
             Create a pseudo-filesystem (PFS) inside a HAMMER file system.  Up
             to 65536 PFSs can be created.  Each PFS uses an independent inode
             numbering space making it suitable for replication.
The pfs-master directive creates a PFS that you can read, write,
             and use as a mirroring source.
A PFS can only be truly destroyed with the pfs-destroy directive.
             Removing the softlink will not destroy the underlying PFS.
A PFS can only be created in the root PFS (PFS# 0), not in a PFS
             created by pfs-master or pfs-slave (PFS# >0).
It is recommended that dirpath is of the form &lt;fs&gt;/pfs/&lt;name&gt;
             (i.e. located in pfs directory at root of HAMMER file system).
It is recommended to use a null mount to access a PFS, except for
             root PFS, for more information see HAMMER(5).

Closing this one.

Cheers,
Antonio Huete

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