Date: Wed, 17 Feb 2016 16:03:45 +0900 From: namaedayo <namaedayo00@gmail.com> To: freebsd-fs@freebsd.org Subject: Re: Free space on ZFS is not reported correctly(?) [Resolved] Message-ID: <CAB1mm9MvPpXd%2Bc44YgTmvzYOBt6tsVNPJcH0Y_dLBV6p630YGA@mail.gmail.com>
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Thank you for reply. I can't thank you enough! Adam Nowacki wrote: > By default zvols have refreservation property set to zvol size. You can > set it to 'none' to make unused zvol disk space available to other datasets. dedup is enabled for "zpool0/test-dedup" in experimental purposes. I have knowledge of the risk of dedup. It has received the advice many times in the kind people. If ZFS to LZMA2 compression is implemented I'm glad. kpneal wrote: > Using dedup takes a surprisingly large amount of memory. Unless you only have a small amount of data to dedup you probably shouldn't have dedup turned on with only 32GB of memory. [root@namaedayo-hp ~]# zfs get refreservation zpool0/namae-iSCSI NAME PROPERTY VALUE SOURCE zpool0/namae-iSCSI refreservation 82.5G local # zfs set refreservation=none zpool0/InnoDB # zfs set refreservation=none zpool0/FreeBSD-10-1_i386-icc # zfs set refreservation=none zpool0/FreeBSD-10-1_i386-icc_zfs # zfs set refreservation=none zpool0/Ubuntu-14-04_server # zfs set refreservation=none zpool0/Ubuntu_Desktop # zfs set refreservation=none zpool0/namae-iSCSI # zfs set refreservation=none zpool0/fedora-21-i686-LXDE # zfs set refreservation=none zpool0/Ubuntu_Desktop $ zfs list NAME USED AVAIL REFER MOUNTPOINT zpool0 4.73T 580G 216K /zpool0 zpool0/FreeBSD-Buckup 169G 580G 169G /zpool0/FreeBSD-Buckup zpool0/FreeBSD-Root 864G 580G 811G / zpool0/Ubuntu-14-04_server 21.9G 580G 21.9G - zpool0/Ubuntu_Desktop 7.18G 580G 7.18G - zpool0/Ubuntu_Desktop-i386 135G 650G 48.9G - zpool0/freebsd-swap 66.0G 630G 16.1G - zpool0/namae-iSCSI 59.3G 580G 59.3G - zpool0/namaedayo_work 351G 580G 346G /zpool0/namaedayo_work zpool0/test-dedup 53.8G 580G 53.8G /zpool0/test-dedup zpool0/test-lz4 47.8G 580G 47.8G /zpool0/test-lz4 $ df -h Filesystem Size Used Avail Capacity Mounted on zpool0/FreeBSD-Root 1.4T 811G 580G 58% / devfs 1.0K 1.0K 0B 100% /dev linprocfs 4.0K 4.0K 0B 100% /compat/linux/proc linsysfs 4.0K 4.0K 0B 100% /compat/linux/sys fdescfs 1.0K 1.0K 0B 100% /dev/fd procfs 4.0K 4.0K 0B 100% /proc
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