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[Linux-cluster] grokking gfs_tool df output



Hi List,

I couldn't find an answer in the archive.

If I df my gfs share I get these numbers:
/dev/mapper/vg--data-gfs_test--lv
                    8588492768    347684 8588145084   1% /mnt/gfs

If I run gfs_tool df I get these:

/mnt/gfs:
 SB lock proto = "lock_dlm"
 SB lock table = "testcluster:gfs1_test"
 SB ondisk format = 1309
 SB multihost format = 1401
 Block size = 4096
 Journals = 5
 Resource Groups = 32766
 Mounted lock proto = "lock_dlm"
 Mounted lock table = "testcluster:gfs1_test"
 Mounted host data = ""/mnt/gfs:
 SB lock proto = "lock_dlm"
 SB lock table = "testcluster:gfs1_test"
 SB ondisk format = 1309
 SB multihost format = 1401
 Block size = 4096
 Journals = 5
 Resource Groups = 32766
 Mounted lock proto = "lock_dlm"
 Mounted lock table = "testcluster:gfs1_test"
 Mounted host data = ""
 Journal number = 0
 Lock module flags =
 Local flocks = FALSE
 Local caching = FALSE
 Oopses OK = FALSE

 Type           Total          Used           Free           use%
 ------------------------------------------------------------------------
 inodes         39127          39127          0              100%
 metadata       1009589        1754           1007835        0%
 data           2146074476     45912          2146028564     0%

 Journal number = 0
 Lock module flags =
 Local flocks = FALSE
 Local caching = FALSE
 Oopses OK = FALSE

 Type           Total          Used           Free           use%
 ------------------------------------------------------------------------
 inodes         39127          39127          0              100%
 metadata       1009589        1754           1007835        0%
 data           2146074476     45912          2146028564     0%

I'm unsure how to interpret these numbers.

The used data * block size doesn't come near my reported df size.
I can't make sense of the differences...

Could anybody enlighten me on what the output of gfs_tool df actually means ??
Or point me to a source of documentation ?

Thanx

Ramon

--
To be stupid and selfish and to have good health are the three requirements for happiness, though if stupidity is lacking, the others are useless.

Gustave Flaubert


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