SLOG and L2ARC setup not described

ewwhite / zfs-ha

ZFS High-Availability NAS

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SLOG and L2ARC setup not described #21

Closed severgun closed 5 years ago

severgun commented 5 years ago

You describe hardware, but there is no description how to set them.

Once there's some idea of the SAS address layout of the drives, we can create a zpool. ... The result:

BOOM! cache spares logs what? where? how? Could it be added later? Should it be shared or hostbased?

ewwhite commented 5 years ago

Spares are just pool drives.

Cache can be shared (SAS) or independent (one per host).

Logs need to be shared SAS disks.

I can look into updating this...

severgun commented 5 years ago

I understand this from other isssue here. I mean there is no instructions how to set them up. Just result. Also. What about using vdev_id.conf aliases? Is it acceptable?

ewwhite commented 5 years ago

What do you need help with?

severgun commented 5 years ago

Is it acceptable to use /dev/disk/by-vdev/ names to create HA pool and in pcs? /dev/disk/by-vdev/ names generated based on vdev_id.conf https://github.com/zfsonlinux/zfs/wiki/FAQ#selecting-dev-names-when-creating-a-pool As I understand conf should be same on both head nodes.

ewwhite commented 5 years ago

I'd recommend /dev/mapper multipath devices for zpool creation.