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Improved handling of minimal quota limits. #703

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merged 2 commits into from
Jan 17, 2023
Merged

Improved handling of minimal quota limits. #703

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6524859
Make minimal hard quota limit higher than minimal soft limit to preve…
pneerincx Jan 17, 2023
e3009bc
Merge branch 'develop' into fix/minimal_quota
scimerman Jan 17, 2023
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7 changes: 6 additions & 1 deletion roles/shared_storage/templates/ldapquota.bash
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Original file line number Diff line number Diff line change
Expand Up @@ -280,8 +280,13 @@ function processFileSystems () {
# Check for 0 (zero).
# When quota values are set to zero it means unlimited: not what we want.
# When zero was specified we'll interpret this as "do not allow this group to consume any space".
#
# Due to the technical limitations of how quota work we'll configure the lowest possible value instead:
# This is 2 * the block/stripe size on Lustre File Systems.
# With the current block size of 1 MB this means a 2 MB minimal soft quota limit.
#
# On Isilon systems the hard limit must be larger than the soft limit,
# so therefore we use 4 * the block/stripe size for the hard limit.
#
if [[ "${_soft_quota_limit}" -eq 0 ]]; then
_soft_quota_limit='2M'
Expand All @@ -291,7 +296,7 @@ function processFileSystems () {
_soft_quota_limit="${_soft_quota_limit}G"
fi
if [[ "${_hard_quota_limit}" -eq 0 ]]; then
_hard_quota_limit='2M'
_hard_quota_limit='4M'
log4Bash 'DEBUG' "${LINENO}" "${FUNCNAME:-main}" '0' " Converted hard quota limit of 0 (zero) for group ${_group_from_lfs_path} on LFS ${_lfs_from_lfs_path} to lowest possible value of ${_hard_quota_limit}."
else
# Just append unit: all quota values from the IDVault are in GB.
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