You can actually optimize your backup by using as many as 6 or more DDS3
tape drives and use them in parallel.
In order to take full advantage of this capability, you would either need
to split the backup yourself into 6 or more backup jobs, each specifying
mutually exclusive filesets - or, upgrading your backup software to
TurboStore, from HP, or one of several 3rd-party solutions, including
BackPack from Tymlabs, Backup+ from Orbit, or Hiback, from Hicomp.
Also. you can utilize various DLT solutions.
The DLT4000 is available in both SE-SCSI and FW-SCSI models. (Incidentally,
on a non A-class or N-class machine, the SE-DLT4000 can be a boot device -
on the A-class or N-class, the FWSCSI DLT can be a boot device.)
Keep in mind the DLT4000 is not as fast as the DLT7000 or DLT8000. The
latter 2 are available only in FWSCSI configurations and cannot be used as
boot devices on your model of HP3000.
As mentioned elsewhere, the DLT options are more reliable, but the
multi-DDS3 option is also quite reliable and perhaps significantly less
costly, in acquisition costs and media costs.
For the multi-DDS3 option, it may be more desirable to split the drives
among 2 SE-SCSI controllers, which each occupy only a half-size slot.
The FWSCSI DLT drives would each require a dedicated, full-height FWSCSI
controller.
Finally, a single SE half-height controller can officially support 2
DLT4000 drives.
At 03:05 PM 2002-05-02, Chuck Ryan wrote:
>I have a 939ks-020 running 6.0pp2 with a DDS3 DAT drive. Currently backups
>are taking a little over 3 hours to run which is killing me when I try and
>squeeze my nightly production run around it.
>
>What would be a good upgrade to the DAT that my system can keep a steady
>stream of data into? I don't want to spend a ton of cash on a drive my 3000
>cannot keep busy.
>
>Thanks
>
>* To join/leave the list, search archives, change list settings, *
>* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
-------------------------------------------------------------------------------------------------
Gilles Schipper
GSA Inc.
HP System Administration Specialists
300 John Street, Box 87651 Thornhill, ON Canada L3T 7R4
Voice: 905.889.3000 Fax: 905.889.3001
email: [log in to unmask] web: http://www.gsainc.com
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* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
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