Where to find generic info about my pool?

Dariusz1989

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Aug 22, 2017
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Hey

I'd like to find out
1. Pool type, raid/z/etc
2. Pool usage
3. Pool total space
4. Pool Stats/etc, disk/versions/vendor/etc/etc

Does anything like that exist? When I go to pool all I get is space used, but I have no idea hat the total capacity is.

Windows appear to be reporting wrong data somehow.

I have 8x10tb disks in I think RaidZ2, but windows only shows 35tb ? I'm lost! Wheres my space...
 

sretalla

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zpool status and zfs list

Then smartctl -a /dev/daX (for each of your disks).

Also zpool iostat
 
Last edited:

danb35

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Like this?
1588846271189.png

and this?
1588846304779.png


It's all in the GUI, under Storage -> Pools.
 

Dariusz1989

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zpool status and zfs list

Then smartctl -a /dev/daX (for each of your disks).

Also zpool iostat
Thanks will try it!

Like this?

and this?


It's all in the GUI, under Storage -> Pools.
Yes but its not showing the correct data I think

1588846605598.png

This is what 8x10tb pool looks like, I still don't know whats total space is, is it 25.73+24.21 ? Why does windows show 35.xx?
 

danb35

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I still don't know whats total space is, is it 25.73+24.21 ?
Unless you think gnomes are stealing capacity in your NAS, what else would it be? Keeping in mind that marketing TB (10^12 bytes) are not the same as filesystem TiB (2^40 bytes); the latter are about 91% of the former. Whether ~50 TiB (about 55 TB) makes sense for your pool is something I couldn't say without knowing your pool layout.
 

Yorick

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Look into historical reasons for hard drive TB vs TiB. To calculate, roughly times 0.9, or use https://www.gbmb.org/tb-to-tib.

8x10 in raidz2, makes 60TB, is 54 TiB. I see 50 there in your GUI - within margin of error for overhead, or maybe GUI display, what do I know. Roughly as expected.

Windows shows only what it sees inside a share, so then the question is: Which dataset did you share.
 

Dariusz1989

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Aug 22, 2017
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Hey

Thanks for info !

So just to sum it up, free nas has no statistic that says total space of pool. Only used/free ? o_O

Regards
Dariusz
 

danb35

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free nas has no statistic that says total space of pool.
I'm not aware of any place that the GUI gives you that number--I'd guess iX believes you can do simple addition to come up with it.
 

Yorick

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Only used/free

That seems to be true. It’s likely engineer’s aesthetics - “surely a + b isn't so complex we need to display the result, and anyway people care about how much space they use and how much is free, the total is derivative”
 

danb35

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free nas has no statistic that says total space of pool.
FWIW, TrueCommand does show this statistic, but it doesn't account for parity--so it shows my pool as 98 TiB (total space of all disks) rather than 64 TiB (actual space after parity).
 
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