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- Path: sparky!uunet!mcsun!Germany.EU.net!nixpbe!usun01!hoepfner
- From: hoepfner@usun01.UUCP (Andreas Hoepfner)
- Newsgroups: comp.sys.pyramid
- Subject: Re: Vdisk gives funny messages
- Message-ID: <1096@usun01.UUCP>
- Date: 31 Aug 92 09:39:46 GMT
- References: <1992Aug11.040141.19028@q8.dk> <489@usun01.UUCP> <79654@yarra.pyramid.com.au>
- Organization: Nixdorf Computer AG, Paderborn, Germany
- Lines: 55
-
- In <79654@yarra.pyramid.com.au> kenj@yarra.pyramid.com.au (Ken McDonell) writes:
-
- >hoepfner@usun01.UUCP (Andreas Hoepfner) writes:
-
- >> The size of a vdisk in /etc/dktab must be a multiple of 8 !
- >> Check this with 'dkconfig -lv /dev/vdisk16'.
-
- >At the risk of picking nits, this is not strictly correct. The rules
- >are more like ...
-
- >1. For stripe and mirror vdisks, all pieces must be the same size.
-
- Of course ! I think this is well known....
-
- >2. If you are using the vdisk as a raw device (e.g. for a DBMS product,
- > rather than a file system), there are no more rules!
-
- >3. For a file system with a file system block size of N Kbytes (the default
- > N for OSx and DC/OSx is 16), then the total vdisk size must be a multiple
- > of N kbytes. |
- |
- |---- Yes, standart 8 units (blocks).
- |
- >And remember that vdisk sizes in /etc/dktab are given in units of 2 Kbytes
- >for OSx and 512 bytes for DC/OSx.
-
- (...deleted stuff...)
-
- 4. In an striped vdisk the size must be a multiple of the cluster
- size.
-
- 5. .....
-
- Shure that there are many more rules (interleaved vdisks) but I just
- wanted to help in this case, nevertheless I'm interested in Your
- tools. How can I get 'em ?
- Beginning in 10/1/92 I'm working at PYRAMID in Germany (Muenchen).
-
- Andreas
-
-
- +-----------------------------------------------------------------------+
- | Andreas Hoepfner |
- | |
- | paper mail: e-mail: |
- | Siemens Nixdorf Informations |
- | Systeme USA: hoepfner.kd@sni-usa.com |
- | Abt. PU 2221 !USA: hoepfner.kd@sni.de |
- | Heinz Nixdorf Ring |
- | D-4790 Paderborn |
- | tel.: (+49) 5251 8-27479 |
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