5% reservation for root is inappropriate for large disks/arrays
Bug #1340448 reported by
James Troup
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
e2fsprogs (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
mke2fs (and it's ext3 and ext4 analogs) still default to reserving 5%
of the filesystem for root. With the size of modern disks and arrays
this isn't a terribly sensible default, e.g. if I have a 10Tb array,
mke2fs will reserve 500Gb for root.
Obviously this is both tunable at FS creation time and fixable after
the fact but I still think we should try and improve the defaults.
Given the size of modern disks, I think it'd make sense to either a)
only reserve a smaller amount (e.g. 1%) or b) reserve n% if the
filesystem is << NNN GB and otherwise reserve NN GB.
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Status changed to 'Confirmed' because the bug affects multiple users.