Volume Creation Error

[fx24]

I am running FreeNAS 9.2.1.7. Today I received 8x WD Reds (6TB). I boot up and all 8 drives are recognized.

Going into ZFS Volume Manager I go to create a RAIDZ2 with all 8 drives. The Volume Manager estimates it to create 32.74TB, and when it creates the volume, it is only 30.4TB.

6TB lost, so that is losing nearly 1TB per usable disk. I have never seen that significant of a difference before so I hope that is normal.

As it created the pool, a windows popped up with this message:

Code:

[*]Request Method: POST
[*]Request URL:    http://192.168.0.21/storage/volumemanager/
[*]Software Version:       FreeNAS-9.2.1.7-RELEASE-x64 (fdbe9a0)
[*]Exception Type: OSError
[*]Exception Value:     
[*][Errno 2] No such file or directory: '/mnt/cache/.system'
[*]Exception Location:     /usr/local/www/freenasUI/../freenasUI/middleware/notifier.py in system_dataset_create, line 5023
[*]Server time:    Mon, 25 Aug 2014 21:27:27 -0700

Code:

Environment:

Software Version: FreeNAS-9.2.1.7-RELEASE-x64 (fdbe9a0)
Request Method: POST
Request URL: http://192.168.0.21/storage/volumemanager/


Traceback:
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  107.                     response = middleware_method(request, callback, callback_args, callback_kwargs)
File "/usr/local/www/freenasUI/../freenasUI/freeadmin/middleware.py" in process_view
  158.         return login_required(view_func)(request, *view_args, **view_kwargs)
File "/usr/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  22.                 return view_func(request, *args, **kwargs)
File "/usr/local/www/freenasUI/../freenasUI/storage/views.py" in volumemanager
  142.         if form.is_valid() and form.save():
File "/usr/local/www/freenasUI/../freenasUI/storage/forms.py" in save
  463.         notifier().restart("system_datasets")
File "/usr/local/www/freenasUI/../freenasUI/middleware/notifier.py" in restart
  363.         self._simplecmd("restart", what)
File "/usr/local/www/freenasUI/../freenasUI/middleware/notifier.py" in _simplecmd
  239.         f()
File "/usr/local/www/freenasUI/../freenasUI/middleware/notifier.py" in _restart_system_datasets
  4905.         systemdataset = self.system_dataset_create()
File "/usr/local/www/freenasUI/../freenasUI/middleware/notifier.py" in system_dataset_create
  5023.                 os.chmod('/mnt/%s' % dataset, 0755)

Exception Type: OSError at /storage/volumemanager/
Exception Value: [Errno 2] No such file or directory: '/mnt/cache/.system'

Code:

Request information

GET

No GET data
POST

Variable    Value
layout-0-vdevtype    u'raidz2'
__form_id    u'dijit_form_Form_13'
layout-0-disks    u'ada7'
__all__    u''
layout-TOTAL_FORMS    u'1'
layout-INITIAL_FORMS    u'0'
volume_name    u'media'
layout-__all__    u''
FILES

No FILES data
COOKIES

Variable    Value
csrftoken    'Fb9x5rm1IUYRIa46yn0WVhF52N82SfgF'
sessionid    'noqontbtsr19k3oph2s0kkn61yxylhxi'
fntreeSaveStateCookie    'root%2Croot%2F202%2F208%2Croot%2F202%2F213%2Croot%2F202%2F208%2F210%2Croot%2F202%2F213%2F215%2Croot%2F53%2F60%2F129%2Croot%2F207%2F213%2F215%2Croot%2F207%2F218%2F220%2Croot%2F207%2F223%2Croot%2F207%2F223%2F225%2Croot%2F207%2F218%2Croot%2F207%2F213%2Croot%2F180%2Croot%2F180%2F186%2Croot%2F181%2F197%2Croot%2F53%2F60%2F105%2Croot%2F53%2F60%2F101%2Croot%2F1%2F6%2Croot%2F1%2F2%2Croot%2F10%2F26%2Croot%2F10%2F30%2Croot%2F37%2F39%2Croot%2F82%2F89%2Croot%2F53%2F60'
META

Variable    Value
wsgi.multiprocess    False
HTTP_REFERER    'http://192.168.0.21/'
REDIRECT_STATUS    '200'
SERVER_SOFTWARE    'nginx/1.4.4'
SCRIPT_NAME    u''
HTTP_X_CSRFTOKEN    'Fb9x5rm1IUYRIa46yn0WVhF52N82SfgF'
REQUEST_METHOD    'POST'
PATH_INFO    u'/storage/volumemanager/'
HTTP_ORIGIN    'http://192.168.0.21'
SERVER_PROTOCOL    'HTTP/1.1'
QUERY_STRING    ''
CONTENT_LENGTH    '300'
HTTP_USER_AGENT    'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36'
HTTP_CONNECTION    'keep-alive'
HTTP_COOKIE    'sessionid=noqontbtsr19k3oph2s0kkn61yxylhxi; fntreeSaveStateCookie=root%2Croot%2F202%2F208%2Croot%2F202%2F213%2Croot%2F202%2F208%2F210%2Croot%2F202%2F213%2F215%2Croot%2F53%2F60%2F129%2Croot%2F207%2F213%2F215%2Croot%2F207%2F218%2F220%2Croot%2F207%2F223%2Croot%2F207%2F223%2F225%2Croot%2F207%2F218%2Croot%2F207%2F213%2Croot%2F180%2Croot%2F180%2F186%2Croot%2F181%2F197%2Croot%2F53%2F60%2F105%2Croot%2F53%2F60%2F101%2Croot%2F1%2F6%2Croot%2F1%2F2%2Croot%2F10%2F26%2Croot%2F10%2F30%2Croot%2F37%2F39%2Croot%2F82%2F89%2Croot%2F53%2F60; csrftoken=Fb9x5rm1IUYRIa46yn0WVhF52N82SfgF'
SERVER_NAME    'localhost'
REMOTE_PORT    '55789'
wsgi.url_scheme    'http'
SERVER_PORT    '80'
SERVER_ADDR    '192.168.0.21'
DOCUMENT_ROOT    '/usr/local/etc/nginx/html'
HTTP_CONTENT_LENGTH    '300'
HTTP_X_REQUESTED_WITH    'XMLHttpRequest'
DOCUMENT_URI    '/storage/volumemanager/'
wsgi.input    <flup.server.fcgi_base.InputStream object at 0x811495550>
HTTP_DNT    '1'
HTTP_HOST    '192.168.0.21'
wsgi.multithread    True
HTTP_CONTENT_TYPE    'application/x-www-form-urlencoded'
REQUEST_URI    '/storage/volumemanager/'
HTTP_ACCEPT    '*/*'
wsgi.version    (1, 0)
GATEWAY_INTERFACE    'CGI/1.1'
wsgi.run_once    False
wsgi.errors    <flup.server.fcgi_base.TeeOutputStream object at 0x811824e10>
REMOTE_ADDR    '192.168.0.24'
HTTP_ACCEPT_LANGUAGE    'en-US,en;q=0.8'
CONTENT_TYPE    'application/x-www-form-urlencoded'
CSRF_COOKIE    u'Fb9x5rm1IUYRIa46yn0WVhF52N82SfgF'
HTTP_ACCEPT_ENCODING    'gzip,deflate,sdch'

I am not sure what to make of this. This pops up whether I make a RZ2, RZ3 or Stripe, optimal or not.

I am going to begin the burn-in process now.

 

[dlavigne]

You shouldn't be getting a traceback from Volume Manager. Please create a bug report at bugs.freenas.org that includes that traceback and post the issue number here.

 

[fx24]

Dlavigne, thank you for responding. I have created a bug report 'Issue #5912'.

I don't understand how serious this traceback is. Should I go to an older version like 9.2 to ensure a stable environment for my 30TB pool? After that traceback is acknowledged, the pool is shown as healthy.

 

[dlavigne]

Let's see what the dev says about the ticket. New tickets are screened fairly quickly.