Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!ncar!gatech!mcnc!ncsc.org!yonkers
From: yonkers@ncsc.org (Frank Terhaar-Yonkers)
Newsgroups: comp.unix.cray
Subject: Re: Backup/Restore utilities for UNICOS
Message-ID: <2662@speedy.mcnc.org>
Date: 23 Oct 90 13:58:33 GMT
References: <1990Oct19.161653.2581@vax1.sara.nl> <231408.11866@timbuk.cray.com>
Sender: daemon@mcnc.org
Reply-To: yonkers@ncsc.org
Organization: North Carolina Supercomputing Center
Lines: 16

>In article <231408.11866@timbuk.cray.com>, jstout@ferris.cray.com (Jeff Stout) writes:
>>In article <1990Oct19.161653.2581@vax1.sara.nl> gerben@vax1.sara.nl writes:
>>dump/restore of UNICOS; the UNICOS dump requires an unmount of the file-
>
>    Are you sure about this?

It doesn't require an unmount.  We backup this way every night. 

HOWEVER WHAT YOU ARE DUMPING IS AN UNSYNC'D FILE SYSTEM.  
  
It uses the raw device, the system buffers are not flushed!  

We take dedicated time periodically to take a sync'd full dump and use the nightly as a last resort.
Critical file systems such as /usr and root are copied every night using cpio.

 - Frank