Unsure about available space.

[JohnFLi]

I have a bunch of disks put together to create a large volume using iScsi.
the volume is made of 3 sets of 6 drives (10 tb each) for a total of 101 tb
when I look at it under the 'storage' tab, 1 place shows that 96% is used, yet right under it, it shows 57% used

Did I make this wrong? reading it wrong or????

 

[BigDave]

That's a bit strange!
I did notice that compression was turned off for the dataset named zPhoto, perhaps this
is responsible for the way it's showing up?

 

[JohnFLi]

When I go to the system that is attached to it, it says 34.6 tb used.

 

[Dice]

Snapshots...?

 

[JohnFLi]

nope. no snapshots. scrubs occur once a month. if I open shell, and go to /mnt/Photo and type in df -Ph . | tail -1 | awk '{print $4}' it shows there is 3.9 tb

 

[SweetAndLow]

How big did you make your zvol? It's probably using all your space but it's empty so it's not really using any space.

Sent from my Nexus 5X using Tapatalk

 

[JohnFLi]

The zVol is 100 TB

 

[SweetAndLow]

The zVol is 100 TB
View attachment 19026

So this is exactly why it shows 100tb used but lots of free space. You allocated the space in the dataset but it's probably a sparse zvol and not using any space.

Are you sure you want to use a zvol? Most people don't make them so big. Usually they are for running a virtual disk for esxi.

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[JohnFLi]

I made it a zVol becasue I found on other threads that for iScsi, using a zVol is best.
I don't have an issue with dropping all this and re-copying the data back (its not in production yet)

So the row that shows only 3.9 tb free and be ignored and I just need to worry about the zPhoto line?

 

[SweetAndLow]

I made it a zVol becasue I found on other threads that for iScsi, using a zVol is best.
I don't have an issue with dropping all this and re-copying the data back (its not in production yet)
View attachment 19030
So the row that shows only 3.9 tb free and be ignored and I just need to worry about the zPhoto line?

There is no better or worse, it's what is best for your solution. Just make sure things don't go above 60% full or your performance will suck

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[JohnFLi]

Sadly enough......once it is in production, I wouldn't be offended by crummy performance. The reason it is such a large chunck of storage is becasue our photo department doesn't have a retention policy, other than 'keep everything'. There are oodles of images of product that was in out magazine from 10+ years ago.....even product we no longer carry. ANd when a photo shoot is done, every image is kept, including the ones that will never be used. I've been telling them for years that they need to correct that. but anyway, I/m venting now.......see how much of a sore topic that is? lol
Thanks for the help eveybody

 

[SweetAndLow]

Sadly enough......once it is in production, I wouldn't be offended by crummy performance. The reason it is such a large chunck of storage is becasue our photo department doesn't have a retention policy, other than 'keep everything'. There are oodles of images of product that was in out magazine from 10+ years ago.....even product we no longer carry. ANd when a photo shoot is done, every image is kept, including the ones that will never be used. I've been telling them for years that they need to correct that. but anyway, I/m venting now.......see how much of a sore topic that is? lol
Thanks for the help eveybody

I think you are way off here. Keeping all the photos is perfectly fine.

So using iscsi you can only have one client access the files. It sounds like you have multiple people putting files into this zvol. That's not really what it's for. I think you should keep researching how this all works. You probably want to use smb.

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[JohnFLi]

Just now saw that you had replied......
THere is only 1 connection to the space using iScsi. a single apple machine is what has the connection. The other people connect to that mac machine, thus giving them access to it. The reason why I had to use iSCSI is becasue that was the only way i could get spotlight to work. They gotta have spotlight.....they are apple people and they always know what is the best thing out there and if they don't like it, it's bad. (yes, heavy on the sarcasm)