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- From: twl10@ccc.amdahl.com (Tom Littauer)
- Newsgroups: comp.unix.admin
- Subject: Re: How do you back up a terabyte?
- Message-ID: <310O02zL2fMj01@JUTS.ccc.amdahl.com>
- Date: 16 Dec 92 18:47:47 GMT
- References: <ericw.724459057@hobbes> <1992Dec16.161430.1109@cc.ic.ac.uk>
- Reply-To: twl10@JUTS.ccc.amdahl.com (Tom Littauer)
- Organization: Amdahl Corporation, Sunnyvale CA
- Lines: 41
-
- In article <1992Dec16.161430.1109@cc.ic.ac.uk> cmaae47@imperial.ac.uk writes:
- >In article <ericw.724459057@hobbes>, ericw@hobbes.amd.com (Eric Wedaa) writes:
- >-
- >- The subject says it all. "How do you back up a terabyte?"
- >
- >With great care.
-
- :-)
-
- >- And while I'm at it, how do you fsck at terabyte?
- >
- > (1) Write an operating system that handles terabyte big file systems
-
- We did.
-
- > (2) The fsck then is easy, as it comes with the operating system :-)
-
- Correct.
-
- >Seriously, the biggest unix file system I know of is efs (on CDC and Silicon
- >Graphics systems), and that handles 8 Gigabyte filesystems. So for a terabyte
- >you need 128 filesystems, which may not be so convenient - you may actually
- >run out of mount points.
-
- Seriously, the Amdahl EFS supports filesystems up to 11 terabytes.
-
- >Finally, with data setss of that size you will have to abandon single
- >backups and look for an archiving and file migration system. Masstor is
- >a name that comes to mind.
-
- Unitree is another. Configuring the filesystem on or as a RAID 5 is also
- useful. Yes, we do both.
-
- I don't want to sound like a commercial here... (well, not *TOO* much
- anyway :-). For further details, call your local Amdahl folks or send
- email.
- --
- Tom Littauer at Amdahl M/S 278, PO Box 3470, Sunnyvale CA 94088-3470 USA
- +1 408 737 5056 twl10@juts.ccc.amdahl.com twl10@amail.amdahl.com
- I'll tell you when I'm speaking as Amdahl's Spokesman - usually I'm not.
- V'z n fgrnygu-grpuabybtl rapelcgrq .fvtangher ivehf - TBGPUN!!!
-