Bug 1016035 - Maximum size for XFS only 100 instead of 500-1000 TB
Summary: Maximum size for XFS only 100 instead of 500-1000 TB
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: python-blivet
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Brian Lane
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-10-07 11:12 UTC by Petr Bokoc
Modified: 2021-09-03 14:08 UTC (History)
2 users (show)

Fixed In Version: python-blivet-0.18.12-1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 10:08:00 UTC
Target Upstream Version:


Attachments (Terms of Use)

Description Petr Bokoc 2013-10-07 11:12:24 UTC
Description of problem:
In RHEL7, the maximum size for an XFS filesystem is supposed to be larger than in RHEL6 - either 500 TB or 1 PB compared to the previous value of 100 TB. This doesn't seem to be the case.

blivet/formats/fs.py contains the following:

class XFS(FS):
<lines omitted>
_maxSize = 100 * 1024 * 1024

which suggests that the size limit is still at 100 TB as of now.

Version-Release number of selected component (if applicable):
python-blivet-0.18.4-1.el7

Actual results:
Can't create an XFS filesystem above 100T.

Expected results:
Can create an XFS filesystem up to at least 500T, if not 1000T.

Comment 2 Brian Lane 2013-11-11 18:17:50 UTC
Sounds like it should be 1000T to allow for really large setups.

Comment 3 Brian Lane 2013-11-11 18:42:59 UTC
After talking to sandeen about this it is probably best to set it to 16EB. None of the other xfs tools enforce an upper limit so we'll set it really big and change it when someone complains :)

Comment 5 Michal Kovarik 2014-02-05 16:49:11 UTC
Verified on python-blivet-0.18.19-2.el7 
blivet/formats/fs.py contains the following:
class XFS(FS):
<lines omitted>
    _maxSize = 16 * 1024 * 1024 * 1024 * 1024

Comment 6 Ludek Smid 2014-06-13 10:08:00 UTC
This request was resolved in Red Hat Enterprise Linux 7.0.

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