Date: Tue, 21 Apr 2020 12:41:59 +0700 From: Victor Sudakov <vas@sibptus.ru> To: freebsd-questions@freebsd.org Subject: ZFS used space (mis)calculation? Message-ID: <20200421054159.GA99203@admin.sibptus.ru>
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Dear Colleagues,
How can it happen that the sum total of all space occupied by snapshots does
not equal USEDSNAP?
130+21.4+20.2+19.8=3D191.4, not 219G. Where are my missing 150G ?
Please look (a complete picture, nothing redacted):
# zfs list -t all -o space
NAME AVAIL USED USEDSNAP USEDDS =
USEDREFRESERV USEDCHILD
fastdrive 371G 784G 52K 23K =
0 784G
fastdrive@2020-04-17_00.05.00--5d - 13K - - =
- -
fastdrive@2020-04-17_12.05.00--5d - 0 - - =
- -
fastdrive@2020-04-18_00.05.00--5d - 0 - - =
- -
fastdrive@2020-04-18_12.05.00--5d - 0 - - =
- -
fastdrive@2020-04-19_00.05.00--5d - 0 - - =
- -
fastdrive@2020-04-19_12.05.00--5d - 0 - - =
- -
fastdrive@2020-04-20_00.05.00--5d - 0 - - =
- -
fastdrive@2020-04-20_12.05.00--5d - 0 - - =
- -
fastdrive/pg_data 371G 783G 219G 565G =
0 0
fastdrive/pg_data@2020-04-19_00.05.00--5d - 130G - - =
- -
fastdrive/pg_data@2020-04-19_12.05.00--5d - 21.4G - - =
- -
fastdrive/pg_data@2020-04-20_00.05.00--5d - 20.2G - - =
- -
fastdrive/pg_data@2020-04-20_12.05.00--5d - 19.8G - - =
- -
--=20
Victor Sudakov, VAS4-RIPE, VAS47-RIPN
2:5005/49@fidonet http://vas.tomsk.ru/
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