Re: strange output from storage promise

If the documentation is correct, then the error message is a bit 
misleading. Created a ticket to make it more clear 
(see https://northerntech.atlassian.net/browse/CFE-4251). Could use share 
the results of executing `df /opt/` ?

As you can see in the output from my AIX machine, `lsfs -q /opt/` outputs 
disk size, while `df /opt/` also shows number of bytes used.
```

$ df /opt/

Filesystem    512-blocks      Free %Used    Iused %Iused Mounted on

/dev/hd10opt     8388608   3148528   63%    30298     8% /opt

$ lsfs -q /opt/

Name            Nodename   Mount Pt               VFS   Size    Options    
Auto Accounting

/dev/hd10opt    --         /opt                   jfs2  8388608 --         
yes  no
```

I believe the error message is shown when the number of bytes *used* is 
lower that what the `sensible_size` attribute in `body volume` is set to. 
(See https://github.com/cfengine/masterfiles/blob/998f71dcbf2f982d2d0783e58bd22288efddf377/lib/storage.cf#L14)
On Thursday, September 14, 2023 at 11:57:06 AM UTC+2 Xander Cage wrote:

> holy cat..markdown of code did not work...sorry about the clutter
>
> On Thursday, September 14, 2023 at 11:56:13 AM UTC+2 Xander Cage wrote:
>
>> hmm...i did not set any defaults from the very begining...
>>
>> anyway heres the full policy...
>>
>> ```# # produces classes if filesystems are somewhat full # shows up as 
>> notkept in kibana # # # control bundle # bundle agent 
>> b0002_rootvg_diskspace { meta: "tags" slist => { "itsv" }; methods: 
>> !am_policy_hub:: "call_to_rootvg_diskspace" usebundle => rootvg_diskspace, 
>> comment => "monitor rootvg filesystems", handle => 
>> "itsv_reporting_rootvg_filesystems_monitoring", classes => 
>> itsv_reporting_classkeeper( "$(this.promiser)", "$(this.handle)", 
>> itsv_ROOTVG_FILESYSTEMS_MONITORING ), action => itsv_reporting( 
>> "$(this.handle)", "$(this.promiser)", "Promisee: $(this.promise_filename) 
>> at line $(this.promise_linenumber)", "1440" ), ifvarclass => "SPARE_DAILY"; 
>> } bundle agent rootvg_diskspace { vars: "datacontainer[root][filesystem]" 
>> string => "/"; "datacontainer[root][minfree]" string => "500M"; 
>> "datacontainer[root][handle]" string => "itsv_reporting_root_fs_check"; 
>> "datacontainer[root][comment]" string => "root filesystem check"; 
>> "datacontainer[root][class]" string => "itsv_system_root_full"; 
>> "datacontainer[root][expire]" string => "1"; 
>> "datacontainer[var][filesystem]" string => "/var"; 
>> "datacontainer[var][minfree]" string => "600M"; 
>> "datacontainer[var][handle]" string => "itsv_reporting_var_fs_check"; 
>> "datacontainer[var][comment]" string => "var filesystem check"; 
>> "datacontainer[var][class]" string => "itsv_var_full"; 
>> "datacontainer[var][expire]" string => "1"; 
>> "datacontainer[usr][filesystem]" string => "/usr"; 
>> "datacontainer[usr][minfree]" string => "500M"; 
>> "datacontainer[usr][handle]" string => "itsv_reporting_usr_fs_check"; 
>> "datacontainer[usr][comment]" string => "usr filesystem check"; 
>> "datacontainer[usr][class]" string => "itsv_usr_full"; 
>> "datacontainer[usr][expire]" string => "1"; 
>> "datacontainer[opt][filesystem]" string => "/opt"; 
>> "datacontainer[opt][minfree]" string => "1G"; "datacontainer[opt][handle]" 
>> string => "itsv_reporting_opt_fs_check"; "datacontainer[opt][comment]" 
>> string => "opt filesystem check"; "datacontainer[opt][class]" string => 
>> "itsv_opt_full"; "datacontainer[opt][expire]" string => "1"; 
>> "datacontainer[tmp][filesystem]" string => "/tmp"; 
>> "datacontainer[tmp][minfree]" string => "600M"; 
>> "datacontainer[tmp][handle]" string => "itsv_reporting_tmp_fs_check"; 
>> "datacontainer[tmp][comment]" string => "tmp filesystem check"; 
>> "datacontainer[tmp][class]" string => "itsv_tmp_full"; 
>> "datacontainer[tmp][expire]" string => "1"; methods: "call_checkdisk" 
>> usebundle => checkdisk("rootvg_diskspace.datacontainer"), if => 
>> not("wpsap"); } bundle agent checkdisk(d) { vars: "vol" slist => 
>> getindices("$(d)"); storage: "$($(d)[$(vol)][filesystem])" handle => 
>> "$($(d)[$(vol)][handle])", comment => "$($(d)[$(vol)][comment])", action => 
>> itsv_reporting( "$($(d)[$(vol)][handle])", "$($(d)[$(vol)][comment])", 
>> "Promisee: $(this.promise_filename) at line $(this.promise_linenumber)", 
>> "$($(d)[$(vol)][expire])" ), classes => itsv_reporting_classkeeper( 
>> "$($(d)[$(vol)][comment])", "$($(d)[$(vol)][handle])", 
>> "$($(d)[$(vol)][class])" ), volume => 
>> min_free_space("$($(d)[$(vol)][minfree])"); methods: "call_fs_expander" 
>> usebundle => fs_expander("$($(d)[$(vol)][filesystem])"), if => 
>> canonify("$($(d)[$(vol)][comment])_handle_$($(d)[$(vol)][handle])_notkept"); 
>> } bundle agent fs_expander(mountpoint) { vars: "chfs_command" string => 
>> "/usr/sbin/chfs -a size=+200M"; "fs" string => canonify("$(mountpoint)"); 
>> "vg_free" string => execresult("/usr/sbin/lsvg rootvg | awk -F: '/FREE PP/ 
>> {match($3, /\([[:digit:]]*/); print substr($3, RSTART+1, RLENGTH-1)}'", 
>> "useshell"); classes: "VG_SPACE_LOW" expression => eval("$(vg_free) < 
>> 10240", "class", "infix"); commands: "$(chfs_command)" args => 
>> "$(mountpoint)", if => not("VG_SPACE_LOW"), classes => 
>> if_repaired("$(fs)_expanded"); reports: "Time: $(sys.date) - Bundle: 
>> $(this.bundle) - Message: expanded filesystem: $(mountpoint)." if => 
>> "$(fs)_expanded"; }``` 
>>
>>
>> ​
>>
>>
>> On Thursday, September 14, 2023 at 10:53:58 AM UTC+2 
>> [email protected] wrote:
>>
>> > where is volume.sensible_size coming from?
>> `sensible_size` is an attribute in `body volume` (see 
>> https://docs.cfengine.com/docs/3.21/reference-promise-types-storage.html#sensible_size
>> )
>>
>> I might be wrong, but It looks to me like you are listing the size of the 
>> filesystem. However the `storage` promise type is complaining about the 
>> number of bytes used. Can you try to type command `df /opt/` ?
>> On Thursday, September 14, 2023 at 10:13:46 AM UTC+2 Xander Cage wrote:
>>
>> Hi,
>>
>> on one of our aix machines we get this outpput from  storage monitoring.
>>
>> error: File system '/opt' is suspiciously small! (9759 bytes)
>>
>> which is definitly not correct...
>>
>> root@wpsap: /root # lsfs -q /opt
>> Name Nodename Mount Pt VFS Size Options Auto Accounting
>> /dev/hd10opt -- /opt jfs2 11534336 -- yes no
>> (lv size: 11534336, fs size: 11534336, block size: 512, sparse files: 
>> yes, inline log: no, inline log size: 0, EAformat: v1, Quota: no, DMAPI: 
>> no, VIX: yes, EFS: no, ISNAPSHOT: no, MAXEXT: 0, MountGuard: no, LFF: no) 
>>
>> mesage comes from here -> 
>> https://github.com/cfengine/core/blob/master/cf-agent/verify_storage.c#L251
>>
>> skimmed through spaghetti code but i guess was unable to fully grasp 
>> whats going on here...
>>
>>
>> https://github.com/cfengine/core/blob/master/cf-agent/verify_storage.c#L249
>>
>> where is volume.sensible_size coming from? i expected some form of statfs 
>> call somewhere but only found one in another unrelated universe.
>>
>>
>> https://github.com/cfengine/core/blob/master/libpromises/storage_tools.c#L84
>>
>> i have an case open with the ibm guys, so please can sombady shaed some 
>> light on this`?
>>
>> wbr
>>
>> chris
>>
>>
>>

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