ADSM-L

Re: when to discard volumes.

1997-03-06 16:45:34
Subject: Re: when to discard volumes.
From: "Dwight E. Cook" <decook AT AMOCO DOT COM>
Date: Thu, 6 Mar 1997 15:45:34 -0600
Item Subject: 1.txt "internet headers"
Could not convert BINARY FILE item to text.
Will attempt to 'shar' item as file '02229o1' at end of msg.

.......................................................................

Item Subject: when to discard volumes.
     We need a little help here... I don't want to guess what platform,
     hardware, adsm code level, ......
     My AIX environments with ADSM 2.1.0.x and 2.1.5.x with 3494 ATL's and
     3590 drives DOES ALL OF THAT FOR ME !
     I checked them in and pretty much so forgot about them.  I did have to
     set up admin schedules to "reclaim" tapes that got down to ~5% valid
     data but the rolling them back to scratch and reusing them is all done
     without a bit of work from me.
     later
         Dwight



______________________________ Reply Separator _________________________________
Subject: when to discard volumes.
Author:  ADSM-L (ADSM-L AT VM.MARIST DOT EDU) at unix,sh
Date:    3/6/97 3:25 PM


I still do run into the question simply when should I go ahead and discard=vol
of my tapes so I can reuse them. Because of the fact that I keep one copy of ac
tive and inactive files for only 30 days and I am running out of tape so fast
because We do have so many images in a production enviorment that changes a lot
meaning lots of files being saved one or two days then deleted next days .
I do like to recycle my tapes and run incremental backup from first tape
that I started but I am worried that maybe there is a better strategy to do thi
s . Can anyone guide me basically what is the best way to do this or is this th
e right step to take without losing any data bearing in mind that I have guaran
tteed only 30 days backup of my files to my managers . any help appreciated.


# This is a shell archive.  Remove anything before this line,
# then unpack it by saving it in a file and typing "sh file".
#
# Wrapped by Openmail for HP9000 <openmail@tuleosm1> on Thu Mar  6 15:46:14 1997
#
# This archive contains:
#       02229o1
#
# Error checking via wc(1) will be performed.

LANG=""; export LANG
PATH=/bin:/usr/bin:$PATH; export PATH


rm -f /tmp/uud$$
(echo "begin 666 /tmp/uud$$\n#;VL*n#6%@x\n \nend" | uudecode) >/dev/null 2>&1
if [ X"`cat /tmp/uud$$ 2>&1`" = Xok ]
then
        unpacker=uudecode
else
        echo Compiling unpacker for non-ascii files
        pwd=`pwd`; cd /tmp
        cat >unpack$$.c <<'EOF'
#include <stdio.h>
#define C (*p++ - ' ' & 077)
main()
{
        int n;
        char buf[128], *p, a,b;

        scanf("begin %o ", &n);
        gets(buf);

        if (freopen(buf, "w", stdout) == NULL) {
                perror(buf);
                exit(1);
        }

        while (gets(p=buf) && (n=C)) {
                while (n>0) {
                        a = C;
                        if (n-- > 0) putchar(a << 2 | (b=C) >> 4);
                        if (n-- > 0) putchar(b << 4 | (a=C) >> 2);
                        if (n-- > 0) putchar(a << 6 | C);
                }
        }
        exit(0);
}
EOF
        cc -o unpack$$ unpack$$.c
        rm unpack$$.c
        cd $pwd
        unpacker=/tmp/unpack$$
fi
rm -f /tmp/uud$$

echo x - 02229o1 '[non-ascii]'
$unpacker <<'@eof'
begin 660 02229o1
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$.#(-"CH@                                                    X
                                                             X
end
@eof
set `wc -lwc <02229o1`
if test $1$2$3 != 252001534
then
        echo ERROR: wc results of 02229o1 are $* should be 25 200 1534
fi

chmod 660 02229o1

rm -f /tmp/unpack$$
exit 0
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