SOLVED Resize a zvol on a pool

[massmux]

I have this config: 10x6TB disks with raidz2. This is divided in 5 zvol of 4,6 TB each. I have a free about 8TB space unallocated into the pool. Each zvol is shared with iscsi.
I would like to use the free space to raise the zvol dimensions without loosing data inside them and creating iscsi issues. Anybody already did it and has infos?

 

[dlavigne]

Refer to these instructions: http://doc.freenas.org/11/sharing.html#growing-luns.

 

[massmux]

thank you dlavigne, i know that part of manual thanks. i was asking if some one has tried it on a production environment and faced some issue

 

[Ericloewe]

If it's in the manual, assume it works and please tell us immediately if it doesn't!

 

[massmux]

Since i have to do that on production iscsi environment... I was quite afraid

 

[massmux]

in your opinion. if i do a local snapshot before resizing, would this be a good security for rolling back the zvol in case of issues?

 

[Stux]

in your opinion. if i do a local snapshot before resizing, would this be a good security for rolling back the zvol in case of issues?

I doubt it.

 

[massmux]

Just to inform everybody who had the same need that i did the resize procedure and everything went fine.
Before starting i took a snapshot of the zvolume just to be sure.
then i did resize of the zvol to the desired new size (bigger) and saved. Restarted the iscsi service to make the share reflecting the correct size and then on xenserver side i rescanned the SR. In this way the new size was reflected on the initiator side.

 

[antikurjers]

HI! I have a problem. Im testing how FreeNas 11.2 work
I make:

And I want extend this zvol. But when I try to extend I see error:

Why ?!

 

[Ericloewe]

Because 1.4 [TB] / 1.7 [TB] = 0.82, or 82%. Note that 82% is a greater value than 80%, which is why you're getting a red warning message warning you not to exceed 80%.

 

[antikurjers]

Because 1.4 [TB] / 1.7 [TB] = 0.82, or 82%. Note that 82% is a greater value than 80%, which is why you're getting a red warning message warning you not to exceed 80%.

Ok, But I see this error with 1300 and 1200!?

 

[Ericloewe]

Is the warning there before you edit any options?

 

[antikurjers]

Is the warning there before you edit any options?

After. SAVE

 

[Ericloewe]

So, what's the sequence of steps that causes the warning to show with values that would not result in more than 80% usage?

 

[antikurjers]

So, what's the sequence of steps that causes the warning to show with values that would not result in more than 80% usage?

I retry FreeNas 11.2 server as VM (Hyper-V) with simmilar configuration.

The result is the same :(
Extend size work only with "Force size" checkbox used.
Why doesn't it like 1300 GB!?