[ovirt-devel] mailing list

[Hetz Ben Hamo]

Hi,

Any chance that someone will take a look at the ovirt mailing list server?

Trying to access
https://lists.ovirt.org/archives/list/devel%40ovirt.org/ gives
error 500

Thanks
תודה,
*חץ בן חמו*
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[ovirt-devel] Re: What is involved in adding new CPU support?

[Hetz Ben Hamo]

IIRC, oVirt is getting the CPU support from libvirt, so if libvirt supports
it, oVirt should support it.
Regarding AMD - I didn't see any new patches from AMD for the new Zen-2
support, and I'm not sure if something changed from Zen-1/Zen+ regarding
virtualization...


On Sat, Jul 27, 2019 at 11:16 AM Matt Mossholder 
wrote:

> Hi everyone,
>  I am interested in adding Ryzen/Ryzen 2 / Ryzen 3 CPU support to
> OVirt. I've seen a few references on the net to people adding in EPYC
> support by updating a PostgresSQL DB table (e.g.
> https://lists.ovirt.org/archives/list/us...@ovirt.org/thread/T3XL6NU7SUPYLYFL4TEKLOZTBWY6ID3S/
> ).
>
> Would this really be all that is needed? If so, how do I determine the
> correct string to add to the table?  If EYPC is "7:AMD
> EPYC:svm,nx,model_EPYC:EPYC:x86_64;", would Ryzen be something like "7:AMD
> RYZEN:svm,nx,model_RYZEN:RYZEN:x86_64;"?
>
>  --Matt
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[ovirt-devel] USB on host support?

[Hetz Ben Hamo]

Hi,

I'm in communication with a company that thinks about RHV.

One of the requirements is USB host support (which will be on the nodes,
not on the desktops). I haven't found any way to connect USB to a VM other
then through SPICE, but this method won't help as these dongles won't be on
desktops.

Is this in the road map of oVirt?

Thanks
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[ovirt-devel] export domain bug?

[Hetz Ben Hamo]

Hi,

Clicking on compute, templates, the HE complains that the export domain is
not available.

Isn't export domain deprecated and the import window should default to the
a storage domain?

Should I open a bug in Bugzilla?

Thanks
Hetz
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[ovirt-devel] adding host to oVirt issue

[Hetz Ben Hamo]

Hi,

I have been checking oVirt latest (4.3.4) with adding various bare metal
hosts with various CPU's: I'm asking on this mailing list if I should open
a ticket and if so what ticket (bug? RFE?).

   - AMD Ryzen 5
   - Xeon SP (first gen)
   - Xeon SP (second gen)
   - Upcoming unannounced Xeon CPU.

The main oVirt machine (and the HE) is running on Xeon E3-1225 V3 CPU.

The big problem is that when you add for example any AMD processor
(whatever it's a low end Ryzen 5 or a high end 32 cores EPYC) to such a
setup, it will fail because it tries to add the AMD machine to the default
cluster which is defined as Intel based VT-X. If I'll try to add any non
Xeon V3 CPU, it will succeed, but any live migration of VM's inside the
cluster will fail since any Xeon chip version has various VT flags.

So, my suggestion is that when adding nodes/hosts to oVirt, they will be
added to a new "non clustered" place without any features allowed (live
migration, for example) and after the admin will add the machines, he/she
can assign nodes to a defined cluster (prepared or that he/she can create)

Another problem with cluster defining is that the CPU type is too
complicated for any admin who doesn't know the nuts and bolts of each CPU.
For example - the Haswell CPU type got *6* CPU types. Do you really expect
an admin to know which one to select? IMHO, a good solution would be to add
some "detect" button to hosts, and the result from clicking this button
should be a window with options like:

   - Add this host to an existing cluster (which has the same CPU type)
   - Auto create a new cluster with the CPU type detected from the
   node/host CPU

I'll be happy to hear your thoughts about this issue.

Thanks,
Hetz
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[ovirt-devel] cannot add host (oVirt 4.3.3.7)

[Hetz Ben Hamo]

Hi,

I'm trying to add a new host to oVirt. The main host is Xeon E5 while the
new host is AMD Ryzen 5.

The main host is running oVirt 4.3.3 and the new node is a minimal install
of CentOS 7.6 (1810) with all the latest updates.

I'm enclosing the log files. it complains that it cannot get the oVirt
packages, perhaps wrong channel(?). Looking at the log, it's trying to use
minidnf. I don't think CentOS 7 supports DNF..

Thanks
Hetz
תודה,
*חץ בן חמו*
אתם מוזמנים לבקר בבלוג היעוץ  או בבלוג הפרטי שלי



ovirt-host-deploy-20190609175628-ovnode2.hetzlabs.io-4df6acd9.log.gz
Description: application/gzip
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[ovirt-devel] Local domain, Intel Optane DC

[Hetz Ben Hamo]

Hi,

In oVirt 4.3 it looks like the storage domains has been consolidated to
data only and ISO, export are being deprecated, which IMHO is a good thing.
However, when it comes to local storage and storage domains (when trying to
mount local directory etc..) - the behavior of oVirt, IMHO, is weird,
compared to other virtualization - your VM's are being switched to another
domain, instead of just leaving them in the same domain and disabling live
migration.

So, as I mentioned above, I don't see any reason for this switching if
using local storage, but now there's a new technology on the block - the
Optane DC, and Samsung will probably show their NVDiMM solution soon.

In both cases - in order to use this persistent memory, you'll need to
"cut" part of the NVDiMM and mount it on the VM along side with your other
NFS/iSCSI disks. This could probably kill live migration (at least in the
first stage - see AMD MxGPU in the KVM forum video's work from AMD and
Alibaba with live migration) - but that's a pretty good solution to utilize
Optane DC/NVDiMM.

So my question is: Is there any chance that oVirt 4.4 will finally allow
local storage to be just like NFS/iSCSI instead of kicking the node to
another domain?

Also, will there be a functionality through the web interface to copy/move
files between storage domains? I don't see it anywhere.

(In case you guys in Israel need some Optane DC's sticks, I can talk to
Intel Israel about it)

Thanks
Hetz
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[ovirt-devel] Re: SATA interface?

[Hetz Ben Hamo]

Latest release.
Where do you set SATA hard disks?


On Thu, May 9, 2019 at 7:55 PM Michal Skrivanek 
wrote:

> > On 6 May 2019, at 14:12, Hetz Ben Hamo  wrote:
> >
> > Hi,
> >
> > It looks like the Q35 chipset has SATA support for CDROM, but not for
> virtual hard disk.
>
> Disks have SATA as well. Which version do you have?
>
> >
> > In many OS's/Appliances - there is no way to use virtio disks, and I can
> either use the extremly slow IDE with 440FX or nothing else. on
> Virt-Manager though, you can choose a SATA hard disk.
> >
> > So, is it possible to add the SATA support back for hard drives please?
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[ovirt-devel] SATA interface?

[Hetz Ben Hamo]

Hi,

It looks like the Q35 chipset has SATA support for CDROM, but not for
virtual hard disk.

In many OS's/Appliances - there is no way to use virtio disks, and I can
either use the extremly slow IDE with 440FX or nothing else. on
Virt-Manager though, you can choose a SATA hard disk.

So, is it possible to add the SATA support back for hard drives please?
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[ovirt-devel] Re: Thin provisioning??

[Hetz Ben Hamo]

OK, which component on bugzilla?


On Thu, May 2, 2019 at 7:29 PM Nir Soffer  wrote:

> On Thu, May 2, 2019 at 7:18 PM Hetz Ben Hamo  wrote:
>
>>
>> On Thu, May 2, 2019 at 7:15 PM Nir Soffer  wrote:
>>
>>> On Thu, May 2, 2019 at 3:59 PM Hetz Ben Hamo  wrote:
>>>
>>>> Hi,
>>>>
>>>> I've migrated few Linux VM's from virt-manager to oVirt. Other than the
>>>> famous bug that it insist to have an ISO domain
>>>>
>>>
>>> What is this famous bug?
>>>
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1632068
>>
>>
>>>
>>>
>>>> - it worked well.
>>>>
>>>> My problem is simple: on virt-manager, I created the virtual disks as
>>>> thin provisioning. ls -l shows the full size of the QCOW2 file and du -hs
>>>> shows the actual size. So far, so good.
>>>>
>>>
>>> So the source image was qcow2 image?
>>>
>>
>> Yes, created with virt-manager.
>>
>>
>>>
>>> After migrating those VM's to oVirt, the disks appear both in the web UI
>>>> and in the meta file as "Thin Provisioning" and "sparse" - however, digging
>>>> into the directory which holds the virtual disk and  running du -hs - shows
>>>> it's a full size disk.
>>>>
>>>> Why is this happening?
>>>>
>>>
>>> How did you import the disks?
>>>
>>
>> Through oVirt - by adding a KVM provider according to ovirt docs.
>>
>> In the node it seems to use the kvm2ovirt, ssh and nc to do all the hard
>> work.
>>
>
> This sounds like kvm2ovirt bug, please file a bug with all the details.
>
> Please include the info from engine about the disk format, virtual size,
> actual size, and
> output of these commands:
>
> qemu-img info /path/to/volume
> ls -lhs /path/to/volume
>
> And engine and vdsm logs showing the import process.
>
> Nir
>
>
>
>>
>>
>>>
>>> Nir
>>>
>>
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[ovirt-devel] Re: Thin provisioning??

[Hetz Ben Hamo]

On Thu, May 2, 2019 at 7:15 PM Nir Soffer  wrote:

> On Thu, May 2, 2019 at 3:59 PM Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>> I've migrated few Linux VM's from virt-manager to oVirt. Other than the
>> famous bug that it insist to have an ISO domain
>>
>
> What is this famous bug?
>

https://bugzilla.redhat.com/show_bug.cgi?id=1632068


>
>
>> - it worked well.
>>
>> My problem is simple: on virt-manager, I created the virtual disks as
>> thin provisioning. ls -l shows the full size of the QCOW2 file and du -hs
>> shows the actual size. So far, so good.
>>
>
> So the source image was qcow2 image?
>

Yes, created with virt-manager.


>
> After migrating those VM's to oVirt, the disks appear both in the web UI
>> and in the meta file as "Thin Provisioning" and "sparse" - however, digging
>> into the directory which holds the virtual disk and  running du -hs - shows
>> it's a full size disk.
>>
>> Why is this happening?
>>
>
> How did you import the disks?
>

Through oVirt - by adding a KVM provider according to ovirt docs.

In the node it seems to use the kvm2ovirt, ssh and nc to do all the hard
work.


>
> Nir
>
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[ovirt-devel] Thin provisioning??

[Hetz Ben Hamo]

Hi,

I've migrated few Linux VM's from virt-manager to oVirt. Other than the
famous bug that it insist to have an ISO domain - it worked well.

My problem is simple: on virt-manager, I created the virtual disks as thin
provisioning. ls -l shows the full size of the QCOW2 file and du -hs shows
the actual size. So far, so good.

After migrating those VM's to oVirt, the disks appear both in the web UI
and in the meta file as "Thin Provisioning" and "sparse" - however, digging
into the directory which holds the virtual disk and  running du -hs - shows
it's a full size disk.

Why is this happening?

(the storage on the oVirt is NFS)
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[ovirt-devel] the mess with uploading files

[Hetz Ben Hamo]

Hi,

Since both export and ISO domain are being deprecated, the only place to
upload remains the data domain.

This method works, however, it doesn't "look" good. Uploading few ISO files
and you won't see any problem. Upload 50-70 files, and the "directory"
looks very messy.

So, my question, will there be any "structure" then can be created, like
"folders" to put those uploaded files?

Thanks
Hetz
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[ovirt-devel] virtual floppy disk bug

[Hetz Ben Hamo]

Hi,

Since the ISO domain is being deprecated, it seems that when uploading a
VFD to the data domain, it won't show when trying to select it in either VM
configuration or Run Once windows.

Which component on bugzilla should I report this bug into?

Thanks
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[ovirt-devel] Re: where is the vdsm-hook-nestedvt package?

[Hetz Ben Hamo]

Never mind, looks like the includepkg in the repo file prevents downloading
the file.


On Fri, Mar 22, 2019 at 12:43 PM Hetz Ben Hamo  wrote:

> Looks like it's also missing from 4.3 as well -
> https://resources.ovirt.org/pub/ovirt-4.3/rpm/el7/x86_64/
> תודה,
> *חץ בן חמו*
> אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי
> <http://benhamo.org>
>
>
> On Fri, Mar 22, 2019 at 12:41 PM Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>> I'm testing the master branch and looking here
>> <https://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/el7/x86_64/> it
>> seems the package vdsm-hook-nestedvt is missing..
>>
>> Thanks
>>
>
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[ovirt-devel] where is the vdsm-hook-nestedvt package?

[Hetz Ben Hamo]

Hi,

I'm testing the master branch and looking here
 it
seems the package vdsm-hook-nestedvt is missing..

Thanks
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[ovirt-devel] ovirt and AMD virtualization bug

[Hetz Ben Hamo]

Hi,

I've done some research on a bug which I found on the AMD Zen/Zen+ based
CPU's. Apparently, when using nested virtualization, the CPU doesn't expose
the "monitor" CPU flag.

While other virtualization solutions (Xen, ESXi, Hyper-V) don't care about
this issue and let you run with nested without any problem, oVirt doesn't
let you launch or create any VM and it complains that this "monitor" CPU
flag is missing.

Since QEMU/KVM cannot do anything about it, I was wondering if the ovirt
dev team could ignore this flag please.

Thanks
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[ovirt-devel] disk cache issues

[Hetz Ben Hamo]

Hi,

After digging around and finding a bit of info about viodiskcache - I
understand that if the user enable it - then the VM cannot be live migrated.

Umm, unless the op decides to do a live migration including changing
storage - I don't understand why the live migration is disabled. If the VM
will only be live migrated between nodes, then the storage is the same,
nothing is saved locally on the node's hard disk, so what is the reason to
disable live migration?

Thanks,
Hetz
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[ovirt-devel] another video

[Hetz Ben Hamo]

Hi,

This is part 2 of converting VM's from ESXI/vCenter to oVirt 4.3. Feel free
to share

Link: https://www.youtube.com/watch?v=zDLgAZmOkNs

BTW, it looks like even when you attach the virtio-win.iso in the
conversion window, it still doesn't actually add the drivers. Imagine my
surprise when I found it while I was recording the video ;)

Thanks
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[ovirt-devel] Hard disk requirement

[Hetz Ben Hamo]

Hi,

The old oVirt (3.x?) ISO image wasn't requiring a big hard disk in order to
install the node part on a physical machine, since the HE and other parts
were running using NFS/iSCSI etc.

oVirt 4.X if I understand correctly - does require hard disk on the node.
Can this requirement be avoided and just use an SD Card? Whats the minimum
storage for the local node?

Thanks,
Hetz
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[ovirt-devel] Re: Status update on "Hyperconverged Gluster oVirt support"

[Hetz Ben Hamo]

/dev/disk-by-id could be problematic. it only showing disks that have been
formatted.

For example, I've just created a node with 3 disks and on Anaconda I chose
only the first disk. After the node installation and reboot, I see on
/dev/disk/by-id only the DM, and the DVD, not the two unformatted disks
(which can be seen using lsscsi command).
Anaconda, however, does see the disks, details etc...


On Sat, Sep 29, 2018 at 12:57 PM Yaniv Kaul  wrote:

>
>
> On Fri, Sep 28, 2018, 7:16 PM Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>> Gobinda, great work!
>>
>> One thing though - the device names (sda, sdb etc..)
>>
>> On many servers, it's hard to know which disk is which. Lets say I have
>> 10 spinning disk + 2 SSD's. Which is sda? what about NVME? worse -
>> sometimes replacing disks replaces the sda to something else. We used to
>> have the same problem with NICs and now this has been resolved on
>> CentOS/RHEL 7.X
>>
>> Could the HCI part - the disk selection part specifically - give more
>> details? maybe Disk ID or WWN, or anything that can identify a disk?
>>
>
> /dev/disk/by-id is the right identifier.
> During installation, it'd be nice if it could show as much data as
> possible - sdX, /dev/disk/by-id, size and perhaps manufacturer.
> Y.
>
>
>> Also - SSD caching, most of the time it is recommended to use 2 drives if
>> possible for good performance. Can a user select X number of drives?
>>
>> Thanks
>>
>>
>> On Fri, Sep 28, 2018 at 6:43 PM Gobinda Das  wrote:
>>
>>> Hi All,
>>>  Status update on "Hyperconverged Gluster oVirt support"
>>>
>>> Features Completed:
>>> 
>>>
>>>   cockpit-ovirt
>>>   -
>>>   1- Asymmetric brick configuration.Brick can be configured per host
>>> basis i.e. If the user wanted to make use of sdb from host1, sdc from
>>> host2, and sdd from host3.
>>>   2- Dedupe and Compression integration via VDO support (see
>>> https://github.com/dm-vdo/kvdo). Gluster bricks are created on vdo
>>> devices
>>>   3- LVM cache configuration support (Configure cache by using fast
>>> block device such as SSD drive to imrove the performance of a larger and
>>> slower logical volumes)
>>>   4- Auto addition of 2nd and 3rd hosts in a 3 node setup during
>>> deployment
>>>   5- Auto creation of storage domains based on gluster volumes created
>>> during setup
>>>   6- Single node deployment support via Cockpit UI. For details on
>>> single node deployment -
>>> https://www.ovirt.org/documentation/gluster-hyperconverged/chap-Single_node_hyperconverged/
>>>   7- Gluster Management Dashboard (Dashboard will show the nodes in
>>> cluster,Volumes and bricks. User can expand the cluster and also can create
>>> new volume in existing cluster nodes )
>>>
>>>   oVirt
>>>   ---
>>>   1- Reset brick support from UI to allow users to replace a faulty brick
>>>   2- Create brick from engine now supports configuring an SSD device as
>>> lvmcache device when bricks are created on spinning disks
>>>   3- VDO monitoring
>>>
>>>  GlusterFS
>>> ---
>>>  Enhancements to performance with fuse by 15x
>>>  1. Cluster after eager lock change for better detection of multiple
>>> clients
>>>  2. Changing qemu option aio to "native" instead of "threads".
>>>
>>>  end-to-end deployment:
>>>  
>>>  1- End to end deployment of a Gluster + Ovirt hyperconverged
>>> environment using ansible roles (
>>> https://github.com/gluster/gluster-ansible/tree/master/playbooks ). The
>>> only pre-requisite is a CentOS node/oVirt node
>>>
>>> Future Plan:
>>> ==
>>>  cockpit-ovirt:
>>>
>>>   1- ansible-roles integration for deployment
>>>   2- Support for different volume types
>>>
>>>  vdsm:
>>>   1- Python3 compatibility of vdsm-gluster
>>>   2- Native 4K support
>>>
>>> --
>>> Thanks,
>>> Gobinda
>>> ___
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[ovirt-devel] Re: Status update on "Hyperconverged Gluster oVirt support"

[Hetz Ben Hamo]

Hi,

Gobinda, great work!

One thing though - the device names (sda, sdb etc..)

On many servers, it's hard to know which disk is which. Lets say I have 10
spinning disk + 2 SSD's. Which is sda? what about NVME? worse - sometimes
replacing disks replaces the sda to something else. We used to have the
same problem with NICs and now this has been resolved on CentOS/RHEL 7.X

Could the HCI part - the disk selection part specifically - give more
details? maybe Disk ID or WWN, or anything that can identify a disk?

Also - SSD caching, most of the time it is recommended to use 2 drives if
possible for good performance. Can a user select X number of drives?

Thanks


On Fri, Sep 28, 2018 at 6:43 PM Gobinda Das  wrote:

> Hi All,
>  Status update on "Hyperconverged Gluster oVirt support"
>
> Features Completed:
> 
>
>   cockpit-ovirt
>   -
>   1- Asymmetric brick configuration.Brick can be configured per host basis
> i.e. If the user wanted to make use of sdb from host1, sdc from host2, and
> sdd from host3.
>   2- Dedupe and Compression integration via VDO support (see
> https://github.com/dm-vdo/kvdo). Gluster bricks are created on vdo devices
>   3- LVM cache configuration support (Configure cache by using fast block
> device such as SSD drive to imrove the performance of a larger and slower
> logical volumes)
>   4- Auto addition of 2nd and 3rd hosts in a 3 node setup during deployment
>   5- Auto creation of storage domains based on gluster volumes created
> during setup
>   6- Single node deployment support via Cockpit UI. For details on single
> node deployment -
> https://www.ovirt.org/documentation/gluster-hyperconverged/chap-Single_node_hyperconverged/
>   7- Gluster Management Dashboard (Dashboard will show the nodes in
> cluster,Volumes and bricks. User can expand the cluster and also can create
> new volume in existing cluster nodes )
>
>   oVirt
>   ---
>   1- Reset brick support from UI to allow users to replace a faulty brick
>   2- Create brick from engine now supports configuring an SSD device as
> lvmcache device when bricks are created on spinning disks
>   3- VDO monitoring
>
>  GlusterFS
> ---
>  Enhancements to performance with fuse by 15x
>  1. Cluster after eager lock change for better detection of multiple
> clients
>  2. Changing qemu option aio to "native" instead of "threads".
>
>  end-to-end deployment:
>  
>  1- End to end deployment of a Gluster + Ovirt hyperconverged environment
> using ansible roles (
> https://github.com/gluster/gluster-ansible/tree/master/playbooks ). The
> only pre-requisite is a CentOS node/oVirt node
>
> Future Plan:
> ==
>  cockpit-ovirt:
>
>   1- ansible-roles integration for deployment
>   2- Support for different volume types
>
>  vdsm:
>   1- Python3 compatibility of vdsm-gluster
>   2- Native 4K support
>
> --
> Thanks,
> Gobinda
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[ovirt-devel] Problem installing HE

[Hetz Ben Hamo]

Hi,

I've tried installing oVirt HE using the ovirt-NG node ISO (4.2.6.2)
running in a nested VM using ESXI 6.7. the HE install part fails when the "TASK
[Get local VM IP]" comes.

I've created a bugzilla about this, as I've seen this problem on the
mailing list quite few times. Link:
https://bugzilla.redhat.com/show_bug.cgi?id=1633346

Could someone check if I forgot to add any log file?

Thanks
Hetz
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[ovirt-devel] Re: new storage domain question

[Hetz Ben Hamo]

I do,
lets say that I have:
nas1:/export
nas2:/export
nas3:/export
nas4:/export

I can use the first one (nas1:/export) when I install the HE, but when I
try to add a new data domain with either nas2:/export, nas3:/export,
nas4:/export - it doesn't let me.

I can, however, import an existing data domain.


On Mon, Aug 27, 2018 at 5:21 PM Tal Nisan  wrote:

> That was my question, to do that on NFS you'll have to have a separate
> export for each storage domain you would like to create for instance:
> nfs_server_host_name:/dir1
> nfs_server_host_name:/dir2
> nfs_server_host_name:/dir3
>
> On Mon, Aug 27, 2018 at 5:05 PM, Hetz Ben Hamo  wrote:
>
>> Not export, add 3-4 new data domains
>>
>>
>> On Mon, Aug 27, 2018 at 5:04 PM Tal Nisan  wrote:
>>
>>> Hi Hetz,
>>> Do you mean you use the same export for each of the domains?
>>>
>>>
>>> On Mon, Aug 27, 2018 at 3:27 PM, Hetz Ben Hamo  wrote:
>>>
>>>> Hi,
>>>>
>>>> I just found something very interesting.
>>>>
>>>> While installing latest ovirt, I've created the shared_storage on my
>>>> nas1 share folder (NFS). So far, so good.
>>>> However, when trying to create additional 2 new storage domains, I can
>>>> only create 1 (which means the shared_storage is 1 and a new one is 2, I
>>>> cannot create a 3rd storage domain, 4th etc..). When I try, it shows an
>>>> error (I don't remember which error right now).
>>>>
>>>> Why is that? and why this strange (IMHO) shared_storage thing? in a
>>>> corporate, if I want to set up a virtualized environment, the storage
>>>> administrator asks me which one I want (NFS, or an iSCSI LUN), do I need
>>>> one or more, and then I'm adding them as a datastore (in VMWare, for
>>>> example) and on top of that I'm installing the management software (for
>>>> example, vCenter). with oVirt method, it will confuse VMware admins.
>>>>
>>>> Thanks
>>>>
>>>> ___
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>>>>
>>>>
>>>
>
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[ovirt-devel] Re: new storage domain question

[Hetz Ben Hamo]

Not export, add 3-4 new data domains


On Mon, Aug 27, 2018 at 5:04 PM Tal Nisan  wrote:

> Hi Hetz,
> Do you mean you use the same export for each of the domains?
>
>
> On Mon, Aug 27, 2018 at 3:27 PM, Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>> I just found something very interesting.
>>
>> While installing latest ovirt, I've created the shared_storage on my nas1
>> share folder (NFS). So far, so good.
>> However, when trying to create additional 2 new storage domains, I can
>> only create 1 (which means the shared_storage is 1 and a new one is 2, I
>> cannot create a 3rd storage domain, 4th etc..). When I try, it shows an
>> error (I don't remember which error right now).
>>
>> Why is that? and why this strange (IMHO) shared_storage thing? in a
>> corporate, if I want to set up a virtualized environment, the storage
>> administrator asks me which one I want (NFS, or an iSCSI LUN), do I need
>> one or more, and then I'm adding them as a datastore (in VMWare, for
>> example) and on top of that I'm installing the management software (for
>> example, vCenter). with oVirt method, it will confuse VMware admins.
>>
>> Thanks
>>
>> ___
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>>
>>
>
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[ovirt-devel] new storage domain question

[Hetz Ben Hamo]

Hi,

I just found something very interesting.

While installing latest ovirt, I've created the shared_storage on my nas1
share folder (NFS). So far, so good.
However, when trying to create additional 2 new storage domains, I can only
create 1 (which means the shared_storage is 1 and a new one is 2, I cannot
create a 3rd storage domain, 4th etc..). When I try, it shows an error (I
don't remember which error right now).

Why is that? and why this strange (IMHO) shared_storage thing? in a
corporate, if I want to set up a virtualized environment, the storage
administrator asks me which one I want (NFS, or an iSCSI LUN), do I need
one or more, and then I'm adding them as a datastore (in VMWare, for
example) and on top of that I'm installing the management software (for
example, vCenter). with oVirt method, it will confuse VMware admins.

Thanks
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[ovirt-devel] bugzilla priority?

[Hetz Ben Hamo]

Hi,

I've created this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1609029

This bug, IMHO, is *critical* - I want to build a PoC to a customer (before
he decides to buy or not RHV) and this is embarrassing...

Any chance this bug could get a higher prioritizing please?

Thanks
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[ovirt-devel] Re: iSCSI and targetcli

[Hetz Ben Hamo]

Well, I'm talking about adding it to the iSCSI stoage domain add window, so
when you select the node there, you'll see the host IQN there also.

תודה,
*חץ בן חמו*
אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי
<http://benhamo.org>

On Tue, Aug 7, 2018 at 11:40 AM, Fred Rolland  wrote:

> It is available in the UI.
> Go to "Compute" >> "Hosts" view and click on the host.
> In the "General" tab, there is an field "iSCSI Initiator Name".
>
> On Sun, Aug 5, 2018 at 10:45 PM, Hetz Ben Hamo  wrote:
>
>> When trying to configure targetcli as target, the ACL requires the
>> initiators machines IQN in order to allow them access.
>>
>> Today, you'll need to login to each node, get the IQN and add it to the
>> ACL.
>>
>> Is it possible to add the IQN of the nodes in the HE WEB UI?
>>
>> ___
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>>
>>
>
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[ovirt-devel] Re: no vms autostart?

[Hetz Ben Hamo]

No it doesn't. Think about a situation that your whole machines are down.
When you'll boot them up currently, only the HE will go up, nothing more in
terms of additional vm's.

תודה,
*חץ בן חמו*
אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי
<http://benhamo.org>

On Sun, Aug 5, 2018 at 10:48 PM, Greg Sheremeta  wrote:

> Does this help?
>
> "What is High Availability?
> High availability is recommended for virtual machines running critical
> workloads. A highly available virtual machine is automatically restarted,
> either on its original host or another host in the cluster, if its process
> is interrupted, such as in the following scenarios:"
>
> https://access.redhat.com/documentation/en-us/red_hat_
> virtualization/4.2/html/virtual_machine_management_
> guide/sect-improving_uptime_with_virtual_machine_high_availability
>
> On Sun, Aug 5, 2018 at 3:44 PM Hetz Ben Hamo  wrote:
>
>> I just found out that there is no option for autostart VM's.
>>
>> This functionality is extremely crucial when a system is going down after
>> a UPS ran out of juice (or that it didn't work when the power failed).
>>
>> Starting VMs automatically help the recovery process, and editable
>> startup list could help a lot more (for example: if 10 VMs are dependent on
>> AD services, the Windows 2012 should be booted 2nd, right after HE, and
>> then the other machines).
>>
>> Autostart VM's could help a lot with UPS if the list can go "backward" to
>> power off VMs in a serialized matter, so when a UPS detects a power loss,
>> it could signal the HE to start shutting down VMs by a list.
>>
>> Any chance to have this feature in 4.3?
>> ___
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>> message/ODMICTDBI4EHED3FBGO7XXR4WGX4PVCQ/
>>
>
>
> --
>
> GREG SHEREMETA
>
> SENIOR SOFTWARE ENGINEER - TEAM LEAD - RHV UX
>
> Red Hat NA
>
> <https://www.redhat.com/>
>
> gsher...@redhat.comIRC: gshereme
> <https://red.ht/sig>
>
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[ovirt-devel] iSCSI and targetcli

[Hetz Ben Hamo]

When trying to configure targetcli as target, the ACL requires the
initiators machines IQN in order to allow them access.

Today, you'll need to login to each node, get the IQN and add it to the ACL.

Is it possible to add the IQN of the nodes in the HE WEB UI?
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[ovirt-devel] no vms autostart?

[Hetz Ben Hamo]

I just found out that there is no option for autostart VM's.

This functionality is extremely crucial when a system is going down after a
UPS ran out of juice (or that it didn't work when the power failed).

Starting VMs automatically help the recovery process, and editable startup
list could help a lot more (for example: if 10 VMs are dependent on AD
services, the Windows 2012 should be booted 2nd, right after HE, and then
the other machines).

Autostart VM's could help a lot with UPS if the list can go "backward" to
power off VMs in a serialized matter, so when a UPS detects a power loss,
it could signal the HE to start shutting down VMs by a list.

Any chance to have this feature in 4.3?
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[ovirt-devel] Re: oVirt Dashboard issues

[Hetz Ben Hamo]

Hi Vojtech,

> * the errors/warning cube doesn't update so much even after cleaning and
> waiting an hour or 2
>
> The Dashboard page doesn't refresh its data automatically (yet) but
> there's a refresh button & "Last Updated" label in the top left corner. As
> mentioned above, the top-most status cards should have their (cached) data
> updated every 60sec.
>
>
I used the refresh button, same result. It's updating when I'm powering and
resuming another node, but the error and warning - not.


> > * Cluster cube shows "1 cluster" but also "N/A" even when my cluster is
> up with 2 machines (with DNS names).
>
> The "N/A" text shown in Cluster status card simply means that we aren't
> tracking status (up/down/etc.) for the Cluster object within the Dashboard.
>

Is that on purpose? any setting that I can change to enable tracking?


>
> > * The memory calculation is wrong - it still shows 503.5 GB even if 1
> node is down for maintenance (which means I need to see something like
> 220GB)
>
> This is part of the utilization card, which means it takes its data from
> DWH. As Greg wrote, please check your DWH setup
> <https://www.ovirt.org/documentation/data-warehouse/Data_Warehouse_Guide/>.
> Are you running DWH on Engine machine or on a different machine?
>

This is a default installation, so DWH is running on the HE VM.


>
> Regards,
> Vojtech
>
>
> On Fri, Jul 27, 2018 at 1:09 PM, Hetz Ben Hamo  wrote:
>
>> Care to share how to check?
>>
>> תודה,
>> *חץ בן חמו*
>> אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי
>> <http://benhamo.org>
>>
>> On Fri, Jul 27, 2018 at 2:08 PM, Greg Sheremeta 
>> wrote:
>>
>>> It sounds like your dwh database is not updating. Can you check that?
>>>
>>> Greg
>>>
>>> On Fri, Jul 27, 2018 at 5:41 AM Hetz Ben Hamo  wrote:
>>>
>>>> Hi,
>>>>
>>>> Whats up with the oVirt Dashboard? it has few problems:. You can see my
>>>> Dashboard here: https://imgur.com/a/n4IWppe
>>>>
>>>> * the errors/warning cube doesn't update so much even after cleaning
>>>> and waiting an hour or 2
>>>> * Cluster cube shows "1 cluster" but also "N/A" even when my cluster is
>>>> up with 2 machines (with DNS names).
>>>> * The memory calculation is wrong - it still shows 503.5 GB even if 1
>>>> node is down for maintenance (which means I need to see something like
>>>> 220GB)
>>>>
>>>> Should I open bugs on all of them in 1 bugzilla? if so, on which
>>>> product?
>>>>
>>>> Thanks,
>>>> Hetz
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>>>>
>>>
>>>
>>> --
>>>
>>> GREG SHEREMETA
>>>
>>> SENIOR SOFTWARE ENGINEER - TEAM LEAD - RHV UX
>>>
>>> Red Hat NA
>>>
>>> <https://www.redhat.com/>
>>>
>>> gsher...@redhat.comIRC: gshereme
>>> <https://red.ht/sig>
>>>
>>
>>
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[ovirt-devel] Re: oVirt Dashboard issues

[Hetz Ben Hamo]

Care to share how to check?

תודה,
*חץ בן חמו*
אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי
<http://benhamo.org>

On Fri, Jul 27, 2018 at 2:08 PM, Greg Sheremeta  wrote:

> It sounds like your dwh database is not updating. Can you check that?
>
> Greg
>
> On Fri, Jul 27, 2018 at 5:41 AM Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>> Whats up with the oVirt Dashboard? it has few problems:. You can see my
>> Dashboard here: https://imgur.com/a/n4IWppe
>>
>> * the errors/warning cube doesn't update so much even after cleaning and
>> waiting an hour or 2
>> * Cluster cube shows "1 cluster" but also "N/A" even when my cluster is
>> up with 2 machines (with DNS names).
>> * The memory calculation is wrong - it still shows 503.5 GB even if 1
>> node is down for maintenance (which means I need to see something like
>> 220GB)
>>
>> Should I open bugs on all of them in 1 bugzilla? if so, on which product?
>>
>> Thanks,
>> Hetz
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>>
>
>
> --
>
> GREG SHEREMETA
>
> SENIOR SOFTWARE ENGINEER - TEAM LEAD - RHV UX
>
> Red Hat NA
>
> <https://www.redhat.com/>
>
> gsher...@redhat.comIRC: gshereme
> <https://red.ht/sig>
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[ovirt-devel] oVirt Dashboard issues

[Hetz Ben Hamo]

Hi,

Whats up with the oVirt Dashboard? it has few problems:. You can see my
Dashboard here: https://imgur.com/a/n4IWppe

* the errors/warning cube doesn't update so much even after cleaning and
waiting an hour or 2
* Cluster cube shows "1 cluster" but also "N/A" even when my cluster is up
with 2 machines (with DNS names).
* The memory calculation is wrong - it still shows 503.5 GB even if 1 node
is down for maintenance (which means I need to see something like 220GB)

Should I open bugs on all of them in 1 bugzilla? if so, on which product?

Thanks,
Hetz
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[ovirt-devel] Re: storage domain deactivating

[Hetz Ben Hamo]

On Thu, Jul 26, 2018 at 9:22 PM, Nir Soffer  wrote:

> On Thu, Jul 26, 2018 at 9:11 PM Hetz Ben Hamo  wrote:
>
>> Hi,
>>
>
> Hi Hetz,
>
> First I want to thank you for your great oVirt videos:
> https://www.youtube.com/channel/UCWrtPbXo4iVxO45aRABIJjg
> Warning: Hebrew content :-)
>
>
You're welcome. Didn't know I was *that* famous at RH IL. Give my regards
to Shai Revivo, Dudi and Yuval Turgeman ;)


> I hope you plan another video showing how to upload ISO image
> directly into a FC or iSCSI domain...
>

iSCSI - I'll probably make one. FC - no hardware here at home ;)


> One of the weird thing that happens is that when the machine boots and it
>> starts the HE, it mounts the storage domains and everything works. However,
>> after few moments, 3 of my 4 storage domains (ISO, export, and another
>> storage domain, but not the hosted_engine storage domain) is being
>> automatically deactivted, with the following errors:
>>
>> VDSM command GetFileStatsVDS failed: Storage domain does not exist:
>> (u'f241db01-2282-4204-8fe0-e27e36b3a909',)
>> Refresh image list failed for domain(s): ISO (ISO file type). Please
>> check domain activity.
>> Storage Domain ISO (Data Center HetzLabs) was deactivated by system
>> because it's not visible by any of the hosts.
>> Storage Domain data-NAS3 (Data Center HetzLabs) was deactivated by system
>> because it's not visible by any of the hosts.
>> Storage Domain export (Data Center HetzLabs) was deactivated by system
>> because it's not visible by any of the hosts.
>>
>> However, when I see those message and I'm manually re-activating those
>> storage domains, all of them getting the status "UP" and there are no
>> errors and I can see disks, images, etc...
>>
>
> What happens if you wait 10 minutes? I guess the system will activate all
> the domains
> automatically.
>

I didn't wait 10 minutes. Too impatient ;)


>
>
>> Should I open a bug in Bugzilla about this issue?
>>
>
> Yes, this sounds like incorrect behavior, even if the storage domains are
> activated
> automatically later.
>

Under which product? (
https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt)


>
> Nir
>
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[ovirt-devel] storage domain deactivating

[Hetz Ben Hamo]

Hi,

As part of my "torture testing" to oVirt (4.2.4) I'm doing some testing
with 1 node where I shut down the HE and the machine (powering off, not
yanking the power cable) and rebooting to see it's survival status.

One of the weird thing that happens is that when the machine boots and it
starts the HE, it mounts the storage domains and everything works. However,
after few moments, 3 of my 4 storage domains (ISO, export, and another
storage domain, but not the hosted_engine storage domain) is being
automatically deactivted, with the following errors:

VDSM command GetFileStatsVDS failed: Storage domain does not exist:
(u'f241db01-2282-4204-8fe0-e27e36b3a909',)
Refresh image list failed for domain(s): ISO (ISO file type). Please check
domain activity.
Storage Domain ISO (Data Center HetzLabs) was deactivated by system because
it's not visible by any of the hosts.
Storage Domain data-NAS3 (Data Center HetzLabs) was deactivated by system
because it's not visible by any of the hosts.
Storage Domain export (Data Center HetzLabs) was deactivated by system
because it's not visible by any of the hosts.

However, when I see those message and I'm manually re-activating those
storage domains, all of them getting the status "UP" and there are no
errors and I can see disks, images, etc...

Should I open a bug in Bugzilla about this issue?

Thanks
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