Selfhosted

60887 readers

791 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Detailed Rules Post

Be civil.
No spam.
Posts are to be related to self-hosting.
Don't duplicate the full text of your blog or readme if you're providing a link.
Submission headline should match the article title.
No trolling.
Promotion posts require active participation, with an account that is at least 30 days old. F/LOSS without a paywall has exceptions, with requirements. See the rules link for details. Tags [CBH] or [AIP] are required, see the links in Rule 8 for details.
AI-related discussions and AI-involved promotional posts have additional requirements for tagging, as noted in Rule 7 and the AI & Promotional Post Expanded Rules post, and find example disclosures here.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

Shared storage between virtual instances (feddit.nl)

submitted 1 year ago* (last edited 1 year ago) by hsdkfr734r@feddit.nl to c/selfhosted@lemmy.world

13 comments fedilink hide all child comments

Hi, right now I'm in the planning process for a self hosted virtualization and containerization environment on one or more Linux hosts. Incus looks promising. And there will be mainly Linux instances. I'm not sure how to solve the shared storage issue - since it is a bad idea to mount a fs more than once. Maybe you have some hints? I'd appreciate that. :)

The OS of an instance can sit on an exclusively used volume, that is solved for me (store it in a local storage pool).

But how should I organize shared read/write storage? It should be accessed by multiple instances at the same time. It should be easily usable as a mount point. Storage replication among multiple hosts is optional - there is rsync. Is NFS still the way to go or are there nicer options? Is there an overlayfs which could resolve concurrent writes?

you are viewing a single comment's thread
view the rest of the comments

[–] SheeEttin@lemmy.zip 2 points 1 year ago (1 children)

What device are you going to put this shared storage on?

[–] hsdkfr734r@feddit.nl 2 points 1 year ago (1 children)

Thanks for asking. I left that detail out. An SSD which is attached to the virtualization host via SATA. I plan to use either a LVM2 volume group or a BTRFS with subvolumes to provide the storage pool to Incus/LXC.

[–] eleitl@lemmy.zip 2 points 1 year ago

Just use NFS then.