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April 2007, Week 4

HP3000-L@RAVEN.UTC.EDU

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Fri, 27 Apr 2007 08:54:26 -0400
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Brian,

Just a shot in the dark, but are all these devices on the same SCSI 
channel? That would mean reading and writing down the same 10Mb channel.





Brian Donaldson wrote:
> I now have the following config on my box:
>
> LDEV1 (4gb disc drive)
> LDEV2 (36gb disc drive)
> LDEV7 (DDS-3 tape drive)
>
> Now using DDS-3 tapes (125 meter) for my backups.
>
> My system is at about 65% capacity. Running under 6.5 PP3
>
> Recently I did a full system backup. Started at approx. 1:10 p.m.
> It didn't finish until after 9 p.m. !!! This backup is a dedicated run with no 
> other jobs/sessions running at thr same time.
>
> My store command line in the job stream is:
>
> :FILE T;DEV=TAPE
> :STORE @[log in to unmask]@;*T;SHOW;PROGRSSS=20;DIRECTORY;INTER;STATISTICS;
> ONLINE=START;PARTIALDB
>
> Why is this backup taking so long?
>
> The only good thing I can say about using 
> DDS-3 tapes compared to the old DDS-1 tapes is that the full system 
> backup only uses one tape now, but still takes way too long to complete.
>
>
> Any insight would be helpful. 
>
> TIA,
> Brian Donaldson.
>
>
> On Sat, 10 Mar 2007 15:32:38 EST, Brian Donaldson <[log in to unmask]> 
> wrote:
>
>   
>> My box is a 917-LX running under 6.5 PP3
>>
>> Using Turbo-Store/Restore Version C.65.19 B5152AA
>>
>> :File T;dev=tape
>> :Store
>> @[log in to unmask]@;*t;show;progress=20;inter;statistics;directory;compress=high;online=
>>     
> start;partialdb
>   
>> DDS-3 Tape Drive and using HP's DDS-1, 90 meter tape cartridges 2GB  (4GB
>> compressed)
>>
>> Takes 7 tapes to backup the entire system.
>>
>> 5 disc drives in box -- Ldev 1,2,3,4,5.
>>
>> A total of 40 GB disc space is available to this system, and is at  around
>> 50% capacity approx.
>>
>> Why is this full system backup taking so long?
>>
>> I started it at 6:30 AM this morning and it is still running at 12:30PM (so
>> far it is on tape #5 of 7)
>>
>> Any insight would be helpful....
>>
>> TIA,
>> Brian Donaldson.
>> <BR><BR><BR>**************************************<BR> AOL 
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