Module: XFSProbe

Defined in:
lib/fs/MiqFS/modules/XFSProbe.rb

Class Method Summary collapse

Class Method Details

.probe(dobj) ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/fs/MiqFS/modules/XFSProbe.rb', line 4

def self.probe(dobj)
  unless dobj.kind_of?(MiqDisk)
    $log&.debug("XFSProbe << FALSE because Disk Object class is not MiqDisk, but is '#{dobj.class}'")
    return false
  end

  # The first Allocation Group's Superblock is at block zero.
  dobj.seek(0, IO::SEEK_SET)
  XFS::Superblock.new(dobj)

  # If initializing the superblock does not throw any errors, then this is XFS
  $log&.debug("XFSProbe << TRUE")
  return true
rescue => err
  $log&.debug("XFSProbe << FALSE because #{err.message}")
  return false
ensure
  dobj.seek(0, IO::SEEK_SET)
end