In addition, the time that you want to save is not in the backups, it's in the recovery portion. Commercial backup solutions (at least the good ones) allow you to track what tape a file is on and what date it was backed up on, so you can restore to point-in-time eaily.
With most homegrown solutions, you either have to restore it all, look through a paper list of tapes and dates, or just keep on trying until you find the right tape.
On Thu, 13 Apr 2000, Derek Kelly wrote:
I think the reason you see many comments like this is because many folks are realizing that backup strategies are becoming more and more important as data spaces grow.
In realization of this, many IT managers are trying to get away from homegrown solutions because they sometimes are not documented well nor maintained properly. In addition, if the person that develops the shell script leaves the company, they take the legacy knowledge with them and inevitably others may not be able to support the system in place.
Commercial products deliver a support network, documentation, and accountability for the IT manager that outlives his tenure at the company. Many feel (including myself) that this is a more responsible strategy being in businesses where data integrity is crucial to the success of the company.
Thanks, Derek Kelly www.genomecorp.com
On 4/13/00 at 10:44 AM, dhb@ssd.ray.com (David H. Brierley) wrote:
On Wed, 12 Apr 2000, John Stoffel wrote:
- Are you willing to spend the money on NDMP capable software and a DLT7000 jukebox attached directory to the filer(s)? That would get the network out of the equation almost completely.
I've seen several comments like this in the past and I don't
understand
them. Why do you feel it is neccessary to spend money on NDMP capable software to be able to use a directly attached tape drive? It
probably
took me a couple of hours to put togethor a shell script which will back up the filer using the locally attached tape drive. The script runs on the admin host and uses rsh commands to connect to the filer and run the dump program. Two hours of my time is a lot less
expensive
than any of the commercial backup solutions, especially since it would have taken me almost 2 hours to fill out the paperwork for the purchase. Plus, it was an interesting problem to solve so I enjoyed doing it.
-- David H. Brierley Raytheon Electronic Systems, Naval & Maritime Integrated Systems Engineering Technology, Operating Systems Support Group
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