ADSM-L

Re: Long 3494 mount times

1997-02-10 15:55:03
Subject: Re: Long 3494 mount times
From: "Dwight E. Cook" <decook AT AMOCO DOT COM>
Date: Mon, 10 Feb 1997 14:55:03 -0600
Item Subject: 1.txt "internet headers"
Could not convert BINARY FILE item to text.
Will attempt to 'shar' item as file '01sr7g9' at end of msg.

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

Item Subject: Long 3494 mount times
     I'll add that where I mentioned I've always seen quick mount times in
     our 3494, our RS/6000 is hardwired over to the ARTIC card through the
     S2 port on the processor... (RS232 connection)


______________________________ Reply Separator _________________________________
Subject: Long 3494 mount times
Author:  ADSM-L (ADSM-L AT VM.MARIST DOT EDU) at unix,sh
Date:    2/10/97 9:09 AM


This is in response to Wayne Gorton's note about 3494 tape mounts taking around
11 minutes.  We had the same problem when we first set ours up and it turned
out to be the way we had TCP/IP configured in the Library Manager.  I'm
going to assume that Wayne's 3494 is LAN attached through either an Ethernet
or Token Ring adapter.  Here's how we fixed our 3494:

1. First of all the 3494 Library Manager is really a PC running OS/2 and
   TCP/IP.  At the main Library Manager screen choose Mode -> Service Mode.
2. Choose menu item Utilities -> Service Window .  This will bring up an OS/2
   window.
3. cd \tcpip\bin
4. tcpipcfg
5. Click on the "Services" tab.
   Make sure the value in "This machine's hostname" is fully qualified (i.e.
   adsm3494.xyz.com)
   Make sure the "Domain Name" is blank.
   Make sure the "Domain Nameservers" says "<NO ENTRIES>"
6. Click on the "Network" tab.
   Make sure the IP address and the subnet mask are correct.
7. Double click to close the window and press the "Save" button when asked
   if you want to save the configuration.
8. Reboot the 3494 and, hopefully, everything should work normally.

The IBM Support Center said that if the IP config is set up incorrectly or
only partially (e.g. we had the "Domain Name" set, but no Nameservers) that
the Library Manager code times out during DNS lookups.  It apparently does
lots of lookups because we were seeing in the 7 minute range for tape mounts
before making the above changes.

Hope this helps.

Jeff Renicker
ISSC/Goodyear
e-mail: jrenicker AT vnet.ibm DOT com
voice: (330) 796-3984


# 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 Mon Feb 10 14:55:32 1997
#
# This archive contains:
#       01sr7g9
#
# 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 - 01sr7g9 '[non-ascii]'
$unpacker <<'@eof'
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                                                             X
end
@eof
set `wc -lwc <01sr7g9`
if test $1$2$3 != 252001541
then
        echo ERROR: wc results of 01sr7g9 are $* should be 25 200 1541
fi

chmod 660 01sr7g9

rm -f /tmp/unpack$$
exit 0
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