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KVM Stability

BB
Reviewer836542
Chief Technology Officer at a manufacturing company with 11-50 employees

We are content with the stability of the solution. It is entirely stable, and we have not encountered any significant issues.

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Lan Tuong - PeerSpot reviewer
Lan Tuong
Technology and System Infrastructure Architect / Senior Technical Support at TELUS Communications Inc.

I would rate the tool's stability an eight to nine out of ten. 

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MP
Martin-Potgieter
CTO at DPD south AFrica

The tool is very stable. Since we provisioned the box, it hasn't been rebooted yet. It has been 1400 days. I rate the stability a ten out of ten.

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Buyer's Guide
KVM
March 2026
Learn what your peers think about KVM. Get advice and tips from experienced pros sharing their opinions. Updated: March 2026.
885,789 professionals have used our research since 2012.
Christophe JOBARD - PeerSpot reviewer
Christophe JOBARD
President at Direction GRID SAS

It's a very stable product.

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Rohail Aslam - PeerSpot reviewer
Rohail Aslam
DevOps Engineer at a computer software company with 201-500 employees

I would rate the stability of KVM as a six out of ten. There have been stability issues and occasional crashes with KVM, especially if incorrect commands are executed. Unlike VMware or Proxmox, which offer additional management tools, KVM is more sensitive to command errors and requires precise handling to avoid disruptions.

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AshutoshKumar4 - PeerSpot reviewer
AshutoshKumar4
Quality Engineer at KML

I can't comment on whether it is stable or not since I have not yet used it to that extent.

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Nayan Gohel - PeerSpot reviewer
Nayan Gohel
Senior Technical Support Engineer at Microlink Solutions Pvt Ltd

The data is in high availability. If my servers undergo maintenance, we switch to another virtual machine host. We delete the maintenance activity, restoring it to the original state, ensuring the users have no downtime.

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DK
Dimitar Kavrakov
CEO at iSolute Ltd

I rate KVM a nine out of ten for stability.

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reviewer1977888 - PeerSpot reviewer
reviewer1977888
Co-Owner at a manufacturing company with 51-200 employees

It is a completely stable solution. While there may be a few bugs, in general, we didn't face any special issues. 

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reviewer1453941 - PeerSpot reviewer
reviewer1453941
Virtualization and Cloud Solutions Architect at a university with 10,001+ employees

KVM is very stable. I can't compare it to Oracle VM as that's never stable, so Oracle dropped that product.

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GN
Georges ESSOMBA
Business Engineer and Consultant at All-Tech

KVM is extremely stable, to the point where I would give it 5/5 stars for stability.

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AL
Arvi Limpadanai
Owner at Simplify IT (Thailand) Co., Ltd.

The stability is just okay. We haven't experienced any major glitches or downtimes.

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GiovanniRamirez - PeerSpot reviewer
GiovanniRamirez
Senior IT Consultant at Xerif

The product is stable. I rate the stability a ten. 

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XP
XinfengPeng
Eco System Building Director at smartx


The solution is stable enough for our customers and I would rate it nine out of ten.
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GiovanniRamirez - PeerSpot reviewer
GiovanniRamirez
Senior IT Consultant at Xerif

The solution is highly stable. I rate the stability a ten out of ten. 

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Konstantin Anisimov - PeerSpot reviewer
Konstantin Anisimov
CEO at Rusonyx

The stability is better than Red Hat. I find that it is very stable.

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SonuSingh - PeerSpot reviewer
SonuSingh
Senior Solution Architect at Micro Focus

KVM is a stable solution.

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Mostafa Khadem - PeerSpot reviewer
Mostafa Khadem
Senior Linux System Administrator at Dana Energy

KVM is stable, but the product from VMware E6 is not stable and I sometimes have issues with it and then the usage of RAM and CPU is costly in my experience. 

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reviewer2291406 - PeerSpot reviewer
reviewer2291406
Technical Architect at a tech vendor with 10,001+ employees

Stability-wise, I rate the solution an eight out of ten.

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MS
Mostafa Shoaei
IT expert/sys admin at a tech services company with 201-500 employees

Stability is guaranteed due to its open-source nature, ensuring reliable deployment. KVM's internal deployment is secure. The primary aspect is its upcoming release of significant features. I would rate it nine out of ten.

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reviewer1651380 - PeerSpot reviewer
reviewer1651380
Solution Architect at a comms service provider with 10,001+ employees

KVM is stable.

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KS
Shiv_Kumar
CTO at a computer software company with 11-50 employees

We haven't had any issues with stability. 

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Muhammad Harun-Owr-Roshid - PeerSpot reviewer
Muhammad Harun-Owr-Roshid
CEO at BRIGHT-i SYSTEMS LIMITED

It's a stable solution. I haven't had any complaints from the customers.

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SC
Sam-Chan
Technical Solution Manager at OneAsia

When the product is used frequently, it's stable, but if we don't touch it for some time, it needs to get synchronized again with the VGA or the HDMI, and there can be problems with that. 

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it_user1455690 - PeerSpot reviewer
it_user1455690
Founder at a retailer with 1-10 employees

It is stable.

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BP
Buddy Parker
Founder at Element Flux

The solution seems to be quite stable. I haven't had any crashing, or any bugs or glitches so far.

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EH
Ernesto HernáNdez
Project Leader at Logicalis

We have experienced some strange problems with instability using KVM. If you install a new driver, HBA, or a new PC network adapter, then you can have problems because of the process of certification for these devices. It happens because KVM is a solution that supports many different kinds of hardware, unlike VMware which is much more restrictive in terms of what it is compatible with. The problem with having such an open solution is that it can also be the cause of issues with stability.

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VC
VascoCampos
System Engineer at NoBoring Lda

This solution is very stable.

It's straightforward and recoverable, it's easy to do anything.

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GN
Georges ESSOMBA
Business Engineer and Consultant at All-Tech

The solution is very stable. It's been stable since I started using it in 2014.

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Software512a - PeerSpot reviewer
Software512a
Software Architect with 501-1,000 employees

The stability of this solution is less than other products in the same category. But, it is OK. 

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it_user781875 - PeerSpot reviewer
it_user781875
System Architect at a aerospace/defense firm with 10,001+ employees

It is a verty stable solution.

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it_user781875 - PeerSpot reviewer
it_user781875
System Architect at a aerospace/defense firm with 10,001+ employees

The stability is very good. It has not crashed once since we have been using it. 

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it_user667986 - PeerSpot reviewer
it_user667986
Student at Universidade de Brasília at a tech company with 51-200 employees

We have not encountered any stability issues.

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it_user302112 - PeerSpot reviewer
it_user302112
Senior Consultant IT Infrastructure at a tech consulting company with 51-200 employees

When running I/O intensive tasks, or having a very high amount of network packages which need to reach the guest(s). However, all issues were under control after tuning the config of the KVM guests.

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FR
Fábio Rabelo
IT Manager at a tech vendor with 51-200 employees
Fausto Kenji Natsumeda - PeerSpot reviewer
Fausto Kenji Natsumeda
IT Manager at a tech services company with 11-50 employees

In my experience, I haven't encountered any issues with stability. Since I installed and started using it, the system has been working very well.

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Bilal Inamdar - PeerSpot reviewer
Bilal Inamdar
Cloud Linux Administrator at a tech services company with 11-50 employees

KVM's stability is fine, assuming it's running on decent hardware.

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Buyer's Guide
KVM
March 2026
Learn what your peers think about KVM. Get advice and tips from experienced pros sharing their opinions. Updated: March 2026.
885,789 professionals have used our research since 2012.