What about the situation where there is a lot of data (including jumbo
datasets), running MPE online backup, and users online. What can I do to
speed things up. I did move the DLT off the same channel as the hard
drives.
Thanks to all,
Ron Horner
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On
Behalf Of Dave Gale
Sent: Friday, April 04, 2008 12:13 PM
To: [log in to unmask]
Subject: Re: Is a DLT drive slower than a DAT drive?
Ray,
There are several issues and I think others have touched on it. First,
if you are using a DLT it likes to get data in a timely manner.
Otherwise it will do the old 'shoe shine'. This means (as pointed out by
others) that other devices on the line can affect the bandwidth on the
channel and starve the DLT. If you are using something like RoadRunner,
then the CPU can be a real factor in this equation (especially single
CPU machines).
So, you may not only want to check the statistics portion of the report,
but monitor your machine during backup with Glance or SOS.
Good Luck,
Dave
Ray Shahan wrote:
> Hi all,
>
>
>
> Our backups are taking longer since we changed to DLT from
> DAT (about 3/4 months ago). We've not had a huge increase in business
> (thus more data), so I wanted to rule out that a DLT is slower than a
> DAT.
>
>
>
> Thanks, and have a great weekend!
>
>
>
>
>
> Raymond Shahan
>
> Life is not a journey to the grave with the
> intention of arriving safely in a pretty and
> well preserved body, but rather to skid in
> broadside, thoroughly used up, totally worn out,
> and loudly proclaiming:
>
> -- WOW!!! What a Ride!!!
>
>
>
>
> * To join/leave the list, search archives, change list settings, *
> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
>
>
* To join/leave the list, search archives, change list settings, *
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