Increasing cores on a VM, renders filesystem unusable.

D

diskdiddler

Wizard

Jun 5, 2020

#1

I have a Ubuntu 18.04 VM which has been wonderful.
It has 2GB assigned and 1 core.

I shut it down, switched to 3GB, 2 Cores and the whole filesystem went kaput.

Recoered from snapshot, did some testing, I can recreate this, consistently.
Anyone know what this would be?

Basil Hendroff

Wizard

Jun 5, 2020

#2

These posts may be useful:
[11.3-U2] No mouse cursor in NoVNC
Mouse stops working in VM (ubuntu 18.04.4)

Server	Version	HPE Proliant Micro Server	CPU	RAM (DDR3 ECC @ 1600 MHz)	Pool	Boot	Battery Backup	Jails	VMs	Docker	Other
truenas-l	CORE 12.0-U6	Gen 8	Intel Xeon E3-1270L V2 @ 2.3GHz	16GB	4 x 10TB WD Red+ in RAID-Z1	2 x 16GB Verbatim Store n Go USB 3.0 Gold flash drives in mirror	PowerShield Defender 1200VA. Server is NUT master	DNSmasq, Heimdall, Nextcloud, Plex (Beta), Resilio Sync, Tautulli, Transmission, WordPress			File & media server. Replication source.
truenas-l2	CORE 12.0-U6	Gen 8	Intel Xeon E3-1220L V2 @ 3.5GHz	16GB	4 x 8TB WD Red+ in RAID-Z1	2 x 16GB Verbatim Store n Go USB 3.0 Gold flash drives in mirror	PowerShield Defender 1200VA. Server is NUT slave	Caddy Reverse Proxy	Ubuntu 20.0.1 Desktop (2 core, 4GB RAM, 150GB HDD) with Docker and Docker Compose	OnlyOffice, Collabora, TrueCommand, TC 1.2.3 & 1.3.2 Portainer, Nextcloud-Apache, Nextcloud-FPM, WordPress	Plex DVR media server.
truenas-b1	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	12GB	5 x 6TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror	PowerShield Defender 1200VA. Server is NUT master				Media replication target.
truenas-b2	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	12GB	5 x 4TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror	PowerShield Defender 1200VA Server is NUT slave				File replication target.
truenas-r	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	10GB	5 x 6TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror		Plex (Beta)			Off-site backup
truenas-t	CORE 12.0-U6	Gen 7 N40L	AMD Turion II Neo N40L @ 1.5GHz	8GB	4 x 3TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror					Test server
truenas-s	SCALE 22.02-RC.1	Gen 8	Intel Xeon E3-1220L V2 @ 3.5GHz	16GB	2 x 1TB WD Red in mirror	1 x 32GB Transcend M.2 SSD in a USB 3.1 enclosure				OnlyOffice, Collabora, TrueCommand	Test server

HP MicroServer Wiki | Basil's Tech Diary

Core

FreeNAS User Guide - The FreeNAS Bible
FreeNAS Hardware Guide - Minimum hardware requirements and design guidelines
Uncle Fester's FreeNAS Beginner's Guide
Introduction to ZFS
Some differences between RAIDZ and mirrors, and why we use mirrors for block storage
Picking a ZFS Pool Layout to Optimize Performance
Slideshow explaining VDev, zpool, ZIL and L2ARC for noobs!

Forum

Forum Guidelines - Forum etiquette
Forum Help Page - BB codes can be found here
Terminology and Abbreviations Primer

SMB

ZFS

Other

Configuring UPS Support for Single or Multiple FreeNAS Servers

Please take the time to vote for the return in FreeNAS of the Corral style calendar interface for scheduled tasks.
Your vote is important. Every vote counts!
More information in this IXSystems post on the thread FreeNAS 11.3 Released. You can cast your vote here.

Thank you to everyone who voted here for the return in FreeNAS of the Corral style calendar interface for scheduled tasks.
It has the highest number of votes in Jira and is on the radar to be considered for a future release of TrueNAS.

Do you think that detection of non-server grade components such as the use of non-ECC RAM in TrueNAS is important?
If so, you can comment and cast your vote here.
Your vote is important. Every vote counts!

D

diskdiddler

Wizard

Jun 5, 2020

#3

Unfortunately no - 2,3,4 cores - all dead for me - filesystem is stuffed.

Basil Hendroff

Wizard

Jun 5, 2020

#4

What version of FreeNAS are you on? Your signature suggests 11.2-RC1.

Server	Version	HPE Proliant Micro Server	CPU	RAM (DDR3 ECC @ 1600 MHz)	Pool	Boot	Battery Backup	Jails	VMs	Docker	Other
truenas-l	CORE 12.0-U6	Gen 8	Intel Xeon E3-1270L V2 @ 2.3GHz	16GB	4 x 10TB WD Red+ in RAID-Z1	2 x 16GB Verbatim Store n Go USB 3.0 Gold flash drives in mirror	PowerShield Defender 1200VA. Server is NUT master	DNSmasq, Heimdall, Nextcloud, Plex (Beta), Resilio Sync, Tautulli, Transmission, WordPress			File & media server. Replication source.
truenas-l2	CORE 12.0-U6	Gen 8	Intel Xeon E3-1220L V2 @ 3.5GHz	16GB	4 x 8TB WD Red+ in RAID-Z1	2 x 16GB Verbatim Store n Go USB 3.0 Gold flash drives in mirror	PowerShield Defender 1200VA. Server is NUT slave	Caddy Reverse Proxy	Ubuntu 20.0.1 Desktop (2 core, 4GB RAM, 150GB HDD) with Docker and Docker Compose	OnlyOffice, Collabora, TrueCommand, TC 1.2.3 & 1.3.2 Portainer, Nextcloud-Apache, Nextcloud-FPM, WordPress	Plex DVR media server.
truenas-b1	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	12GB	5 x 6TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror	PowerShield Defender 1200VA. Server is NUT master				Media replication target.
truenas-b2	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	12GB	5 x 4TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror	PowerShield Defender 1200VA Server is NUT slave				File replication target.
truenas-r	CORE 12.0-U6	Gen 7 N54L	AMD Turion II Neo N54L @ 2.2GHz	10GB	5 x 6TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror		Plex (Beta)			Off-site backup
truenas-t	CORE 12.0-U6	Gen 7 N40L	AMD Turion II Neo N40L @ 1.5GHz	8GB	4 x 3TB WD Red+ in RAID-Z1	2 x 16GB SanDisk Cruzer Facet USB 2.0 flash drives in mirror					Test server
truenas-s	SCALE 22.02-RC.1	Gen 8	Intel Xeon E3-1220L V2 @ 3.5GHz	16GB	2 x 1TB WD Red in mirror	1 x 32GB Transcend M.2 SSD in a USB 3.1 enclosure				OnlyOffice, Collabora, TrueCommand	Test server

HP MicroServer Wiki | Basil's Tech Diary

Core

FreeNAS User Guide - The FreeNAS Bible
FreeNAS Hardware Guide - Minimum hardware requirements and design guidelines
Uncle Fester's FreeNAS Beginner's Guide
Introduction to ZFS
Some differences between RAIDZ and mirrors, and why we use mirrors for block storage
Picking a ZFS Pool Layout to Optimize Performance
Slideshow explaining VDev, zpool, ZIL and L2ARC for noobs!

Forum

Forum Guidelines - Forum etiquette
Forum Help Page - BB codes can be found here
Terminology and Abbreviations Primer

SMB

ZFS

Other

Configuring UPS Support for Single or Multiple FreeNAS Servers

Please take the time to vote for the return in FreeNAS of the Corral style calendar interface for scheduled tasks.
Your vote is important. Every vote counts!
More information in this IXSystems post on the thread FreeNAS 11.3 Released. You can cast your vote here.

Thank you to everyone who voted here for the return in FreeNAS of the Corral style calendar interface for scheduled tasks.
It has the highest number of votes in Jira and is on the radar to be considered for a future release of TrueNAS.

Do you think that detection of non-server grade components such as the use of non-ECC RAM in TrueNAS is important?
If so, you can comment and cast your vote here.
Your vote is important. Every vote counts!

K

KrisBee

Wizard

Jun 5, 2020

#5

@diskdiddler Looks like your VM disk is using AHCI, switch to Virtio.

D

diskdiddler

Wizard

Jun 6, 2020

#6

I never had an issue before - anyhow I updated to 11.3-U3-2.0 (Whatever the latest of the latest is) and it does seem ok now!

Important Announcement for The TrueNAS Community.

Increasing cores on a VM, renders filesystem unusable.

diskdiddler

Wizard

Basil Hendroff

Wizard

diskdiddler

Wizard

Basil Hendroff

Wizard

KrisBee

Wizard

diskdiddler

Wizard

Similar threads

Important Announcement for The TrueNAS Community.