Re: [ovirt-users] direct lun resizing

[Jiří Sléžka]

Hi,

it worked!

for reference...

on host where vm is running...

multipath -r

shows old size so I rescan both paths...

echo 1 > /sys/class/scsi_device/2\:0\:1\:62/device/rescan
echo 1 > /sys/class/scsi_device/2\:0\:0\:62/device/rescan

then...

multipath -r

...shows new size

now I get lun_id (part of --path) and vm_id (--domain) from api and...

virsh -c qemu:///system blockresize --path
/dev/mapper/36005076b07500eff54180960001c --size 629145600 --domain
7a5de3e0-ecbd-4ed6-bf98-2e7a45e96027

btw. size is in KiB, so in my case 600GiB * 1024 * 1024

I had to set sasl passwd for my user... I hope this doesn't break
something...

saslpasswd2 -a libvirt my_username

after this resize the colegue tell me that direct lun was resized on the
vm side...

[524704.451468] sd 2:0:0:1: Capacity data has changed
[525449.969906] sd 2:0:0:1: Capacity data has changed
[525449.971771] sd 2:0:0:1: [sdb] 1258291200 512-byte logical blocks:
(644 GB/600 GiB)
[525449.972697] sdb: detected capacity change from 536870912000 to
644245094400

I have no idea what could happen if I set wrong size :-)


Thanks, Jiri


On 10/19/2017 04:34 PM, Jiří Sléžka wrote:
> Hi,
> 
> thanks a lot! I am going to try sugested workaround but tommorow :-)
> 
> Cheers, Jiri
> 
> 
> On 10/19/2017 02:25 PM, Fred Rolland wrote:
>> Hi,
>>
>> Offline refresh of a direct lun's size is supported since oVirt 3.4 [1].
>> Online refresh, however, is not yet supported [2].
>> You can try the workaround posted on [2], comment 7.
>>
>> [1] *Bug 1026868* 
>> -Direct LUN is not being updated after resizing
>> [2] *Bug 1155275* 
>> -[RFE] Online update Direct LUN size to the Guest after LUN resize
>>
>> On Thu, Oct 19, 2017 at 1:30 PM, Jiří Sléžka > > wrote:
>>
>> Hi all,
>>
>> one of our user uses direct lun inside one of his vm. Now he expanded
>> this lun on the disk array side from 500GB to 600GB but this change was
>> not reflected on oVirt nor vm side.
>>
>> How is direct lun resizing handled in oVirt?
>>
>> Cheers,
>>
>> Jiri
>>
>>
>>
>> ___
>> Users mailing list
>> Users@ovirt.org 
>> http://lists.ovirt.org/mailman/listinfo/users
>> 
>>
>>
> 
> 
> 
> 
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
> 




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Re: [ovirt-users] direct lun resizing

[Jiří Sléžka]

Hi,

thanks a lot! I am going to try sugested workaround but tommorow :-)

Cheers, Jiri


On 10/19/2017 02:25 PM, Fred Rolland wrote:
> Hi,
> 
> Offline refresh of a direct lun's size is supported since oVirt 3.4 [1].
> Online refresh, however, is not yet supported [2].
> You can try the workaround posted on [2], comment 7.
> 
> [1] *Bug 1026868* 
> -Direct LUN is not being updated after resizing
> [2] *Bug 1155275* 
> -[RFE] Online update Direct LUN size to the Guest after LUN resize
> 
> On Thu, Oct 19, 2017 at 1:30 PM, Jiří Sléžka  > wrote:
> 
> Hi all,
> 
> one of our user uses direct lun inside one of his vm. Now he expanded
> this lun on the disk array side from 500GB to 600GB but this change was
> not reflected on oVirt nor vm side.
> 
> How is direct lun resizing handled in oVirt?
> 
> Cheers,
> 
> Jiri
> 
> 
> 
> ___
> Users mailing list
> Users@ovirt.org 
> http://lists.ovirt.org/mailman/listinfo/users
> 
> 
> 




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Re: [ovirt-users] direct lun resizing

[Fred Rolland]

Hi,

Offline refresh of a direct lun's size is supported since oVirt 3.4 [1].
Online refresh, however, is not yet supported [2].
You can try the workaround posted on [2], comment 7.

[1] *Bug 1026868*  -
Direct LUN is not being updated after resizing
[2] *Bug 1155275*  - [RFE]
Online update Direct LUN size to the Guest after LUN resize

On Thu, Oct 19, 2017 at 1:30 PM, Jiří Sléžka  wrote:

> Hi all,
>
> one of our user uses direct lun inside one of his vm. Now he expanded
> this lun on the disk array side from 500GB to 600GB but this change was
> not reflected on oVirt nor vm side.
>
> How is direct lun resizing handled in oVirt?
>
> Cheers,
>
> Jiri
>
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

[ovirt-users] direct lun resizing

[Jiří Sléžka]

Hi all,

one of our user uses direct lun inside one of his vm. Now he expanded
this lun on the disk array side from 500GB to 600GB but this change was
not reflected on oVirt nor vm side.

How is direct lun resizing handled in oVirt?

Cheers,

Jiri




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