| From: | "Chad R(dot) Larson" <clarson(at)eldocomp(dot)com> |
|---|---|
| To: | Curt Sampson <cjs(at)cynic(dot)net>, Nathan Mueller <nate(at)cs(dot)wisc(dot)edu> |
| Cc: | strange(at)nsk(dot)yi(dot)org, Tony Reina <reina(at)nsi(dot)edu>, <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Tape/DVD Backup Suggestions? |
| Date: | 2002-07-18 21:08:10 |
| Message-ID: | 4.2.2.20020718140528.00a9f7d0@ecint.ecinet.com |
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| Thread: | |
| Lists: | pgsql-admin |
At 07:43 PM 7/17/02 , Curt Sampson wrote:
>if you're using tape, you really should be verifying you can read every
>single one you write
Professional quality tape drives do read-after-write with a separate head
during the same pass, so the tape has already been read.
If you're using quarter-inch-cartridges or something like it, then yes, by
all means to a test read. But DDS and DLTs can detect a write error and
correct it on the fly.
-crl
--
Chad R. Larson (CRL22) chad(at)eldocomp(dot)com
Eldorado Computing, Inc. 602-604-3100
5353 North 16th Street, Suite 400
Phoenix, Arizona 85016-3228
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