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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!howland.reston.ans.net!paladin.american.edu!auvm!SPOCK.DIS.CCCD.EDU!CRAIGA
- Mailer: Elm [revision: 66.25]
- Message-ID: <BANYAN-L%92123005172365@VM1.CC.UAKRON.EDU>
- Newsgroups: bit.listserv.banyan-l
- Date: Wed, 30 Dec 1992 02:13:53 PST
- Sender: Banyan Networks Discussion List <BANYAN-L@AKRONVM.BITNET>
- From: Craig Armstrong <craiga@SPOCK.DIS.CCCD.EDU>
- Subject: re: 250Mb tapes in Archive 150?
- In-Reply-To: from "Bent=Tranberg" at Dec 30, 92 11:33 am
- Lines: 49
-
- >
- > If only we had known about the DC6250s last month...
- >
-
- Amazing how long it takes for word to get around... WHy would vendors want
- you to use extended length tapes when they can sell you a higher capacity
- unit? :-)
-
- > Just to make sure we don't waste more money: What are the largest tapes that
- > can be used in the Archive 150MB and 525MB tape units? ( That's the ones we
- > are using. ) Are there other units that have 'improved their spesifications'?
- > ( That last question just in case someone else is wondering. We are not
- > planning any new types. )
- >
-
- Not sure on the 525mb units, but on the 150's 250mb tapes work fine.
-
- > Is it possible to mix DC tapes ( 6150, 6250, 6525 ) in one FULL backup? If
- > not, is it possible to use one type for the FULL backup, and another for the
- > INCREMENTAL backup? We don't want to throw away all those 6150s, and we can't
- > afford too many new tapes either.
- >
-
- I've never seen a problem with mixing tapes. Since bantape (see earlier
- message) relies on results from the adapter, it hums along until it gets
- and EOT result from the controller. Will say though I've never done a
- selective restore with mixed media...
-
- > It can be difficult to figure out how many tapes are needed for a backup,
- > especially if large mail services are backed up. Are there any formulas out
- > there?
-
- Not trying to be a smartass, but the only formula that has been proven to
- work is to have a tape drive with greater capacity than the combined
- capacity of the drives in the server!!!
- >
- > Bent
- >
-
-
- --
-
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