https://forums.freenas.org/index.php?threads/replication-dataset-set-a-read-only.46889/
https://forums.freenas.org/index.php?threads/replication-target-datasets-mounted-ro-in-freenas-9-3-stable-201602020212-and-newer.41246/
https://forums.freenas.org/index.php?threads/zfs-replication-and-making-the-destination-read-write.10551/
https://bugs.freenas.org/issues/15011
zfs list -o name,mountpoint,mounted,readonly volrep/common
zfs set readonly=off tank/root
https://www.facebook.com/groups/nas.tw/permalink/10154653693713245/
走iscsi
沒 ups -> no cache
os disk 使用 HDD pool
database disk 使用 HDD pool + NVMe Cache (zil and cache)
file disk 使用 HDD pool + cache
http://www.servethehome.com/the-proxmox-ve-kvm-based-all-in-one-freenas/
各種效能比較
https://b3n.org/vmware-vs-bhyve-performance-comparison/
參考
http://churnd.net/2014/06/29/smartos-homelab-hypervisor-v3/
Supermicro X10SLM-F
Intel Xeon E3-1231 V3、3.4GHz、10M Cache、4C/8T
8GB DDR3 ECC UnBuffer
Supermicro SC836BE16-R920B 3U 機架式 機箱 (3U 專用滑
Supermicro 920W ( 1 + 1 ) Redundant 高效能 AC-DC power supply w/ PFC
AOC-S2308L-L8e Toshiba SAS 4TB
dmesg check usb drive
1、mkdir /mnt/usb1234
//not sure 2、kldload fuse
3、ntfs-3g /dev/da1s1 /mnt/usb1234
umount -f /var/usb
https://forums.freenas.org/index.php?threads/connect-usb-external-drive-to-freenas.15150/
Volume = zvol
===========================
http://www.getnas.com/2015/01/386.html
FreeNAS 9.3 创建卷时会同时创建一个与卷同名的数据集，目前测试来看，在 WebGUI 界面中无法删除该数据集，因此我们只能在此数据集上面创建新的数据集。
数据集支持嵌套，即可以在某个数据集中再次创建数据集，没有数量限制，可以根据需要自由创建。也可以在数据集中创建 Zvol 虚拟硬盘，用于 iSCSI 块级共享
https://forums.freenas.org/index.php?threads/slow-transfer-speeds-via-cifs.39867/
https://forums.freenas.org/index.php?threads/cifs-directory-browsing-slow-try-this.27751/
-–CIFS–Advance mode—-Auxiliary Parameters:————-
store dos attributes = no
map system = no
-———————————————————————-
Jumbo Frame enable
-———————————————————————-
In BSD the CFIS implementation is only single threaded
-———————————————————————-
Omni-OS + Napp-it for great iSCSI and CIFS performance
A multithreaded kernel based alternative to SAMBA is Solaris CIFS in Oracle Solaris, OmniOS or NexentaStor
OmniOS is currently SMB1
Nexenta and Solaris 11.3 is SMB 2.1.
Most feature rich is Solaris 11.
