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chjatwork

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chjatwork

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August 21st, 2014 06:00

Quotas

Community,

I need to know what this columns means when you run the following command:

isi quota quotas list -v

Type     Applies To                                      Path                            Snap Hard  Soft  Adv   Grace Files With Overhead W/O Overhead Over Container Linked

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This is what I put together and could use some help verifying my statements: and for those that I have question marks for please provide your input.

  • Type = Indicates what type of quota it is (Which we mainly only have directory quotas set.)
  • Applies to = ?
  • Path = the absolute path for the quota.
  • Snap = Tells you if Snapshots are counted against the quota. ?????
  • Hard Limit Allocation = Admin defined Value
  • Soft Limit Allocation = Admin defined Value
  • Advisory Allocation = Admin defined Value
  • Grace = Represents the number of days before the soft limit restrictions are applied to the share.
  • # of Files = is the number of files within the location.
  • Usage With Overhead = Represents the data size on disk with any data protection and any metadata in support of storing that files.
  • Usage W/O Overhead = Represents the data size on the disk without any overhead calculated against the data’s use of any data protection and metadata.
  • Over = Represents that the quote for this policy has been exceeded. ????
  • Container = ?
  • Linked =   ?
  • Peter_Sero

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    Posted August 21st, 2014 06:00


    This is what I put together and could use some help verifying my statements: and for those that I have question marks for please provide your input.

      • Type = Indicates what type of quota it is (Which we mainly only have directory quotas set.)
      • Applies to = ?

    the specifc user/group name, n/a to directory quotas

      • Path = the absolute path for the quota.
      • Snap = Tells you if Snapshots are counted against the quota. ?????

    yes (as set by admin on quota creation)

      • Hard Limit Allocation = Admin defined Value
      • Soft Limit Allocation = Admin defined Value
      • Advisory Allocation = Admin defined Value
      • Grace = Represents the number of days before the soft limit restrictions are applied to the share.
      • # of Files = is the number of files within the location.
      • Usage With Overhead = Represents the data size on disk with any data protection and any metadata in support of storing that files.
      • Usage W/O Overhead = Represents the data size on the disk without any overhead calculated against the data’s use of any data protection and metadata.

      • Over = Represents that the quote for this policy has been exceeded. ????

    yes

      • Container = ?

    true/false as set by admin, true: df shows hard limit as 100% or “volume size”.

      • Linked =   ?

    e.g. any “specific” user governed by “default-user” quota type. (joeuser "linked" to default-user)

  • chjatwork

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    Posted August 21st, 2014 07:00

    Peter,

    If I have snaps set to TRUE, will that over head show up withing the "Usage With Overhead"?  Or is "Usage With Overhead" only going to show disk protection overhead?

    Thank you,

  • Peter_Sero

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    Posted August 21st, 2014 07:00

    Yep, overhead only means disk protection overhead.

    So one can have any of the four possible combinations:

    Snaps + Overhead (actual consumption of raw $torage)

    No Snaps + Overhead

    Snaps + No Overhead

    No Snaps + No Overhead (net file space, most consistent for users)

  • Peter_Sero

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    Posted August 21st, 2014 08:00

    You can always read out  w/ and w/o overhead at the same time as there are two columns.

    But w/ and w/o snapshots needs to be set in advance, when creating the quota.

    That difference might make it a bit confusing.

    So if and only if "with snapshots" has been set, then the usage w/ overhead column

    will include snapshot data (and its related protection overhead),

    otherwise not.

    (And I never mind where the metadata goes; just try it out with

    a fresh quota domain and a byte-accurate quota report.)

  • chjatwork

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    Posted August 21st, 2014 08:00

    Peter,

    Again, so I can make sure I understand what you are saying.  The column "Usage With Overhead" WILL NOT indicate snapshot overhead that a particular (Directory, User, or or Group) quota takes up?  This column will ONLY indicate how much space on the disk the files take up based on the disk protection prior set on the cluster... plus the metadata supporting the data storage?

  • chjatwork

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    Posted August 21st, 2014 09:00

    ok