Mirrors/ansible-nas
2
0
Fork 0
mirror of https://github.com/davestephens/ansible-nas synced 2024-12-26 11:33:08 +00:00
Code Issues Projects Releases Packages Wiki Activity

Further edits because of stupidity

Browse source
This commit is contained in:
Scot W. Stevenson 2019-04-13 16:41:29 +02:00
parent fd3872db48
commit fdf29103cc
2 changed files with 11 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
docs/zfs_configuration.md
View file

@ -35,8 +35,8 @@ redundancy. The actual Ubuntu system will be on a different drive and is not our
concern. concern.
> [Root on ZFS](https://github.com/zfsonlinux/zfs/wiki/Ubuntu-18.04-Root-on-ZFS) > [Root on ZFS](https://github.com/zfsonlinux/zfs/wiki/Ubuntu-18.04-Root-on-ZFS)
> is currently still a hassle for Ubuntu. If that changes, this document might > is still a hassle for Ubuntu. If that changes, this document might be updated
> be updated accordingly. Until then, don't ask us about it. > accordingly. Until then, don't ask us about it.
The Ubuntu kernel is already ready for ZFS. We only need the utility package The Ubuntu kernel is already ready for ZFS. We only need the utility package
which we install with `sudo apt install zfsutils`. which we install with `sudo apt install zfsutils`.
@ -54,21 +54,22 @@ create our ZFS pool, we will use a command in this form:
The options from simple to complex are: The options from simple to complex are:
**<NAME>**: ZFS pools traditionally take their names from characters in the [The **NAME**: ZFS pools traditionally take their names from characters in the [The
Matrix](https://www.imdb.com/title/tt0133093/fullcredits). The two most common Matrix](https://www.imdb.com/title/tt0133093/fullcredits). The two most common
are `tank` and `dozer`. Whatever you use, it should be short. are `tank` and `dozer`. Whatever you use, it should be short - think `ash`, not
`xenomorph`.
**<DRIVES>**: The Linux command `lsblk` will give you a quick overview of the **DRIVES**: The Linux command `lsblk` will give you a quick overview of the
hard drives in the system. However, we don't pass the drive specification in the hard drives in the system. However, we don't pass the drive specification in the
format `/dev/sde` because this is not persistent. Instead, format `/dev/sde` because this is not persistent. Instead,
[use](https://github.com/zfsonlinux/zfs/wiki/FAQ#selecting-dev-names-when-creating-a-pool) [always use](https://github.com/zfsonlinux/zfs/wiki/FAQ#selecting-dev-names-when-creating-a-pool)
the output of `ls /dev/disk/by-id/` to find the drives' IDs. the output of `ls /dev/disk/by-id/` to find the drives' IDs.
**<ASHIFT>**: This is required to pass the [sector **ASHIFT**: This is required to pass the [sector
size](https://github.com/zfsonlinux/zfs/wiki/FAQ#advanced-format-disks) of the size](https://github.com/zfsonlinux/zfs/wiki/FAQ#advanced-format-disks) of the
drive to ZFS for optimal performance. You might have to do this by hand because drive to ZFS for optimal performance. You might have to do this by hand because
some drives lie: Whereas modern drives have 4k sector sizes (or 8k in case of some drives lie: Whereas modern drives have 4k sector sizes (or 8k for many
many SSDs), they will report 512 bytes because Windows XP [can't handle 4k SSDs), they will report 512 bytes because Windows XP [can't handle 4k
sectors](https://support.microsoft.com/en-us/help/2510009/microsoft-support-policy-for-4k-sector-hard-drives-in-windows). sectors](https://support.microsoft.com/en-us/help/2510009/microsoft-support-policy-for-4k-sector-hard-drives-in-windows).
ZFS tries to [catch the ZFS tries to [catch the
liars](https://github.com/zfsonlinux/zfs/blob/master/cmd/zpool/zpool_vdev.c) and liars](https://github.com/zfsonlinux/zfs/blob/master/cmd/zpool/zpool_vdev.c) and

2
docs/zfs_overview.md
View file

@ -215,7 +215,7 @@ RAM instead.
[introduction](https://pthree.org/2012/04/17/install-zfs-on-debian-gnulinux/) [introduction](https://pthree.org/2012/04/17/install-zfs-on-debian-gnulinux/)
to ZFS on Linux. If you only read one part, make it the [explanation of the to ZFS on Linux. If you only read one part, make it the [explanation of the
ARC](https://pthree.org/2012/12/07/zfs-administration-part-iv-the-adjustable-replacement-cache/), ARC](https://pthree.org/2012/12/07/zfs-administration-part-iv-the-adjustable-replacement-cache/),
ZFS read cache. ZFS' read cache.
- One of the best books on ZFS around is _FreeBSD Mastery: ZFS_ by Michael W. - One of the best books on ZFS around is _FreeBSD Mastery: ZFS_ by Michael W.
Lucas and Allan Jude. Though it is written for FreeBSD, the general guidelines Lucas and Allan Jude. Though it is written for FreeBSD, the general guidelines