Pardon my lack of clarity, I'm just using tar for testing right now. I'm 
not actually using Amanda as I haven't gotten to the full blown client side 
yet and am kind of feeling things out there. Should I be using another CLI 
based client? I may end up scripting my own system out instead of using 
another client. Is there an OSS client that works well with the dedupe or 
do I need something commercial like NBU's client? 

Also in terms of Cent 8 when I did "systemctl start quadstorvtl" it 
wouldn't start. That said if I went into /quadstorvtl/etc/ and ran the init 
script with the start command there it would work fine. Not really looking 
to chase this issue down myself but wanted you to be aware of it. What's 
weird is that it's the wrapper for the init script in systemd doesn't work 
but running the exact same command as root does. It's like there's a 
permissions issue? I did try to set SELinux to where it wasn't enforcing 
and that didn't seem to help either.


On Tuesday, March 3, 2020 at 2:20:03 PM UTC-6, quadstor wrote:
>
> Hi, 
>
> On Tue, Mar 3, 2020 at 11:39 AM thetriode <[email protected] 
> <javascript:>> wrote: 
> > 
> > Is anyone using Amanda with Quadstor VTL? I got it stood up and have 
> been messing around with the VTL function some. A sample config would be 
> great in order to see how it should look. Right now I have 4 virtual tape 
> drives exported via FC to a test host. 
> There are a few Amanda users but not on this list. 
>
> > 
> > The other question is the system I have this on isn't new but it's 
> fairly beefy for what it is; 4 drive R5 off a MegaSAS Controller, 32GB RAM 
> and dual 5410s. I'm running 8 gig FC cards. I'm not seeing much load on 
> either the source or the destination system. I'm backing up right now with 
> tar cf /dev/st0 /dir. Is this running with a low priority for some reason 
> or is there something I need to do in order to extract the performance of 
> the backup server in terms of settings? Just trying to figure out what the 
> limitations are at the moment. 
>
> Most likely time is spent in reading /dir and on the VTL side since 
> Amanda is not supported for dedupe probably some of the CPU would be 
> used for compression but other than that nothing much. 
>
> One option here would be to use the non-dedupe storage pools and get 
> performance over space savings since its unlikely that deduplication 
> would give much savings here. 
> You could try tapes from the non-dedupe storage pool, and then dd 
> /dev/zero to tape and that would show the real performance and it 
> should be easier to isolate any bottlenecks 
>
> > 
> > Also as a matter of interest, I tried the latest version on CentOS 8. 
> The SystemD integration didn't work but it would manually start fine. It's 
> odd it would run one place but not the other. I transitioned over to 
> OpenSuSE 15.1 which did work fine because the FC/SAS HBA support of RHEL is 
> discarding pretty much all legacy controllers. 
>
> We will look into the CentOS 8 issue - did the service not start on a 
> restart but 'service quadstorvtl start' worked ? 
>
> > 
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