I'm running 3.0.33 now, will schedule the update window soon. 
The master disk is not so fast for random io (12x 4T NLSAS on Netapp). 
I see about 2k iops and 100% disk load on dd tables load.

As for the behavior - all drives just go offline in TSM and the only way to 
bring them back online is quadstor service restart.


On Wednesday, June 5, 2019 at 11:32:48 AM UTC+3, quadstor wrote:
>
> Hi, 
>
> Service shutdown/load time has been addressed in 3.0.35 
> https://www.quadstor.com/vtl-extended-edition-downloads.html 
> Please generate diagnostics logs before and after the upgrade 
>
> The shutdown or load can be slow based on the speed of the master disk 
> and in older installations where all the deduplication tables are not 
> created upfront. 
>
> When an out-of-space condition occurs, any pending writes are 
> terminated with error. From the backup application point of view the 
> running backups will fail. But the devices should still be accessible 
> and things can continue either by deleting/erasing older/expired 
> tapes, or by adding more storage to the pool. What exactly is the 
> behavior seen ? 
>
> On Wed, Jun 5, 2019 at 1:43 PM Sergey Kamyanov <[email protected] 
> <javascript:>> wrote: 
> > 
> > Hello, could you please explain what Quadstor VTL actually does in case 
> of out of space condition on the storage pools and how to bring it back 
> online after that? 
> > 
> > The only solution I found is to restart the service which takes a lot of 
> time (~30 min) due to dd tables dump and load. 
> > 
> > -- 
> > Virtual Tape Library (VTL) 
> https://www.quadstor.com/virtual-tape-library.html 
> > VTL software download 
> https://www.quadstor.com/vtl-extended-edition-downloads.html 
> > VTL documentation https://www.quadstor.com/vtl-documentation.html 
> > --- 
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>  
>
>

-- 
Virtual Tape Library (VTL) https://www.quadstor.com/virtual-tape-library.html
VTL software download 
https://www.quadstor.com/vtl-extended-edition-downloads.html
VTL documentation https://www.quadstor.com/vtl-documentation.html
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