OS
/
automount
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Implement even more accurate space calculation.

This commit is contained in:
Slawomir Wojciech Wojtczak (vermaden) 2012-08-29 21:24:59 +02:00
parent 90c41c7186
commit 0dc9e6737a
1 changed files with 46 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
beadm
View File

@ -197,17 +197,18 @@ case ${1} in
fi fi
fi fi
# get list of USEDBYDATASET and USED properties # get list of USEDBYDATASET and USED properties
USED_ALL=$( zfs list -H -t all -o name,usedbydataset,used -r sys/ROOT \ USED_ALL=$( zfs list -H -t all -o name,usedbydataset,usedbysnapshots,used -r sys/ROOT \
| sed 1d \ | sed 1d \
| sed '/0$/d' \ | sed '/0$/d' \
| awk '{ gsub("-"," 0 0 ",$2); gsub("-"," 0 0 ",$3); | sed '/-$/d' \
gsub("K"," 1 ",$2); gsub("K"," 1 ",$3); | awk '{ gsub("-"," 0 0 ",$2); gsub("-"," 0 0 ",$3); gsub("-"," 0 0 ",$4);
gsub("M"," 1024 ",$2); gsub("M"," 1024 ",$3); gsub("K"," 1 ",$2); gsub("K"," 1 ",$3); gsub("K"," 1 ",$4)
gsub("G"," 1048576 ",$2); gsub("G"," 1048576 ",$3); gsub("M"," 1024 ",$2); gsub("M"," 1024 ",$3); gsub("M"," 1024 ",$4);
gsub("T"," 1073741824 ",$2); gsub("T"," 1073741824 ",$3); gsub("G"," 1048576 ",$2); gsub("G"," 1048576 ",$3); gsub("G"," 1048576 ",$4);
gsub("P"," 1099511627776 ",$2); gsub("P"," 1099511627776 ",$3); gsub("T"," 1073741824 ",$2); gsub("T"," 1073741824 ",$3); gsub("T"," 1073741824 ",$4);
gsub("E"," 1125899906842624 ",$2); gsub("E"," 1125899906842624 ",$3); gsub("P"," 1099511627776 ",$2); gsub("P"," 1099511627776 ",$3); gsub("P"," 1099511627776 ",$4);
gsub("Z"," 1152921504606846976 ",$2); gsub("Z"," 1152921504606846976 ",$3); gsub("E"," 1125899906842624 ",$2); gsub("E"," 1125899906842624 ",$3); gsub("E"," 1125899906842624 ",$4);
gsub("Z"," 1152921504606846976 ",$2); gsub("Z"," 1152921504606846976 ",$3); gsub("Z"," 1152921504606846976 ",$4);
print $0; print $0;
}' ) }' )
# get the list of names and origins for all boot environments # get the list of names and origins for all boot environments
@ -256,22 +257,42 @@ case ${1} in
# use the USED field from ZFS LIST # use the USED field from ZFS LIST
TOTAL=${USED} TOTAL=${USED}
else else
# calculate space total usage for boot environment # calculate overhead space usage for boot environment
TOTAL=$( echo "${USED_ALL}" \ OVERHEAD=$( echo "${USED_ALL}" \
| awk -v name="^${POOL}\/ROOT\/${NAME}" -v snapshot="@${SNAPSHOT}$" \ | grep "^${POOL}\/ROOT\/${NAME}" \
'BEGIN {total = 0} | grep -v "@" \
($1 ~ name) {total += $2 * $3} | awk \
($1 ~ snapshot) {total += $4 * $5} 'BEGIN {overhead = 0}
END { {overhead += $4 * $5}
if (total <= 1024) { unit = "K"; } END {print overhead}' )
else if (total <= 1048576) { total = total / 1024; unit = "M"; } # calculate snapshots space usage for boot environment
else if (total <= 1073741824) { total = total / 1048576; unit = "G"; } SNAPS=$( echo "${USED_ALL}" \
else if (total <= 1099511627776) { total = total / 1073741824; unit = "T"; } | grep "^${POOL}\/ROOT\/${NAME}" \
else if (total <= 1125899906842624) { total = total / 1099511627776; unit = "P"; } | grep "@" \
else if (total <= 1152921504606846976) { total = total / 1125899906842624; unit = "E"; } | awk \
else { total = total / 1152921504606846976; unit = "Z"; } 'BEGIN {snaps = 0}
printf ("%.1f%s",total,unit); {snaps += $6 * $7}
}' ) END {print snaps}' )
# calculate space usage for boot environment datasets
USED=$( echo "${USED_ALL}" \
| awk -v name="^${POOL}\/ROOT\/${NAME}" -v snapshot="@${SNAPSHOT}$" \
'BEGIN {used = 0}
($1 ~ name) {used += $2 * $3}
($1 ~ snapshot) {used += $6 * $7}
END {print used}' )
# calculate total space usage for boot environment
TOTAL=$( echo | awk -v used=${USED} -v snaps=${SNAPS} -v overhead=${OVERHEAD} \
'BEGIN {total = used + overhead - snaps}
END {
if (total <= 1024) { unit = "K"; }
else if (total <= 1048576) { total = total / 1024; unit = "M"; }
else if (total <= 1073741824) { total = total / 1048576; unit = "G"; }
else if (total <= 1099511627776) { total = total / 1073741824; unit = "T"; }
else if (total <= 1125899906842624) { total = total / 1099511627776; unit = "P"; }
else if (total <= 1152921504606846976) { total = total / 1125899906842624; unit = "E"; }
else { total = total / 1152921504606846976; unit = "Z"; }
printf ("%.1f%s",total,unit);
}' )
fi fi
if [ "${2}" = "-a" ] if [ "${2}" = "-a" ]
then then