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Question on Proxmox Pools (I'm a bit of a noob) (self.selfhosted)

submitted 1 year ago by ramblechat to c/selfhosted

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I've added 2 external USBs of 2TB each to my Proxmox server and created a Resource Pool called USB_HDD containing both. I created an Ubuntu VM, but I can't allocate all 4TB to it in one go - it only allows me to add each one as a separate SCSI device. When I start to install the OS it only allows the install onto one of the 2TB devices. I though the point of pools was to make the actual disks transparent, and present the pool to the VM so it sees it as one lot of space. Am I doing something wrong, or do I have to have it as 2x2TB disks?

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[–] ramblechat 1 points 1 year ago (9 children)

Thanks for the responses; it seems I can't really do it. I looked into ZFS but if I use that it halves the available disk space to 2TB. I'm using the VM for a media server and thought it would be better to have 1 4TB space instead of 2 2TB disks. At the end of the day it isn't a big deal, I just thought I'd be able to present both disks as 1.

[–] [email protected] 3 points 1 year ago (4 children)

looked into ZFS but if I use that it halves the available disk space to 2TB.

Look harder :-)

ZFS can do it either way.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (3 children)

Indeed ZFS has support for stripe (RAID0 like) ~~vdev~~ zpool since very early days.

[–] daf 1 points 1 year ago

Be aware in RAID0 if one of the HDD fails, the content on both will be lost lost.

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