Mike_S

updated

13 years ago

M

Mike_S

16 Posts

0

2295

March 3rd, 2014 18:00

Incorrect total size in Isilon

Hi,

QUESTION:

------------------------------------

I login to isilon via putty use command df -h to check the size

i find out the total size is not equal to used size + free size

is there any possible that the size is being use by system but is not being display ?

BUSINESS IMPACT:

------------------------------------

No Impact, Just curiosity from customer

Regards,

Mike

  • Peter_Sero

    6 Operator

    •

    1169 Posts

    1351

    1

    Posted March 4th, 2014 00:00

    Do you have Virtual Hot Spare space enabled? It also hides as dark matter from df.

    -- Peter

  • cincystorage

    2 Intern

    •

    467 Posts

    1351

    0

    Posted March 3rd, 2014 18:00

    Im guessing it has something to do with the protection scheme you've choosen and the stripe size... And how isilon deals with files smaller than its stripe size...

  • chughh

    122 Posts

    1351

    0

    Posted March 3rd, 2014 19:00

    Some size is used by system partition rest you can compare output from both commands

    isetta-2# df -h /ifs

    Filesystem    Size    Used   Avail Capacity  Mounted on

    OneFS         5.0T    691G    4.3T    14%    /ifs

    isetta-2# df -h

    Filesystem               Size    Used   Avail Capacity  Mounted on

    /dev/mirror/root0        989M    483M    427M    53%    /

    devfs                    1.0K    1.0K      0B   100%    /dev

    /dev/mirror/var0         989M    110M    800M    12%    /var

    /dev/mirror/var-crash    1.9G    327M    1.5G    18%    /var/crash

    /dev/md0                  62M    470K     56M     1%    /tmp/ufp

    OneFS                    5.0T    691G    4.3T    14%    /ifs

    /dev/mirror/root1        989M    474M    436M    52%    /root/lkg

  • Mike_S

    16 Posts

    1351

    0

    Posted March 5th, 2014 18:00

    Hi Chugg,

    Sorry to bother you again.

    Is there any where find out the system use size is occupy by which system ? can you explain further such as occupy by partition or meta data ?


    Regards,

    Mike

  • Mike_S

    16 Posts

    1351

    0

    Posted March 6th, 2014 00:00

    Hi Peter,

    I find out there is 14TB for Virtual Hot Spare that you mention

    The number is tally when I add up

    Thanks

    Mike