8mm Backup strangeness
Yates, John H.
YATES at C.CHEM.UPENN.EDU
Wed Sep 5 07:05:00 AEST 1990
I am finding Backup strangeness on 8mm Backup's. The following script should
use Backup for /usr /u0 /u1, ... /u7 , rewind the tape and List_tape them all.
I am glad I did this sanity check because some marbles (filesystems) are
missing. (skip the sleep's, I don't think they are necessary and are only
there as a desperate guess).
What happens is, all of the Backups appear to work, but after rewinding
and doing a List_tape, only the 3rd, 6th, and 9th sets appear.
Some sort of header, trailer, tapemark problems with putting multiple Backup's
on one 8mm tape? Anyone know what gives?
Thanks, John
yates at c.chem.upenn.edu
The 8mmbackup script:
echo "Starting 8mmBackup"
df
#
sleep 60
mt -t /dev/rmt/tps0d6nr retension
sleep 60
mt -t /dev/rmt/tps0d6nr rewind
sleep 60
#
echo "Backup /usr"
Backup -t /dev/rmt/tps0d6nr /usr
sleep 60
#
echo "Backup /u0"
Backup -t /dev/rmt/tps0d6nr /u0
sleep 60
#
echo "Backup /u1"
Backup -t /dev/rmt/tps0d6nr /u1
sleep 60
#
echo "Backup /u2"
Backup -t /dev/rmt/tps0d6nr /u2
sleep 60
#
echo "Backup /u3"
Backup -t /dev/rmt/tps0d6nr /u3
sleep 60
#
echo "Backup /u4"
Backup -t /dev/rmt/tps0d6nr /u4
sleep 60
#
echo "Backup /u5"
Backup -t /dev/rmt/tps0d6nr /u5
sleep 60
#
echo "Backup /u6"
Backup -t /dev/rmt/tps0d6nr /u6
sleep 60
#
echo "Backup /u7"
Backup -t /dev/rmt/tps0d6nr /u7
sleep 60
#
echo "Rewind tape."
mt -t /dev/rmt/tps0d6nr rewind
sleep 600
#
echo "List 1st Backup set (/usr)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 2nd Backup set (/u0)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 3rd Backup set (/u1)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 4th Backup set (/u2)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 5th Backup set (/u3)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 6th Backup set (/u4)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 7th Backup set (/u5)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 8th Backup set (/u6)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
echo "List 9th Backup set (/u7)"
List_tape -t /dev/rmt/tps0d6nr
sleep 60
#
mt -t /dev/rmt/tps0d6nr rewind
sleep 60
#
df
sleep 600
echo "Done."
The results of running the script (most verboseness removed):
Starting 8mmBackup
Filesystem Type blocks use avail %use Mounted on
/dev/root efs 31584 19127 12457 61% /
/dev/u7 efs 245532 5834 239698 2% /u7
/dev/u6 efs 245532 60 245472 0% /u6
/dev/u5 efs 245532 27 245505 0% /u5
/dev/u4 efs 245532 700 244832 0% /u4
/dev/u3 efs 245532 352 245180 0% /u3
/dev/u2 efs 245532 56677 188855 23% /u2
/dev/u1 efs 245532 90632 154900 37% /u1
/dev/u0 efs 324576 78477 246099 24% /u0
/dev/tmp efs 378672 930 377742 0% /tmp
/dev/scr efs 1965012 549040 1415972 28% /scr
/dev/usr efs 979272 242345 736927 25% /usr
/debug dbg 631656 104496 527160 17% /debug
Backup /usr
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /usr
c 2k of 8k [1] /usr/lost+found
c 2k of 10k [1] /usr/lib
c 2k of 12k [1] /usr/lib/inst
...
c 2k of 160386k [1] /usr/local/man
c 2k of 160388k [1] /usr/local/man/man1
c 6k of 160394k [1] /usr/local/man/man1/vmsbackup.1
Backup complete.
Backup /u0
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u0
c 2k of 8k [1] /u0/lost+found
c 2k of 10k [1] /u0/jy
c 4k of 14k [1] /u0/jy/.profile
c 4k of 18k [1] /u0/jy/.cshrc
c 4k of 22k [1] /u0/jy/.login
...
c 4k of 53832k [1] /u0/ap/temp1.f
c 4k of 53836k [1] /u0/ap/eng1.f
c 362k of 54198k [1] /u0/ap/a.out
Backup complete.
Backup /u1
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u1
c 2k of 8k [1] /u1/lost+found
c 2k of 10k [1] /u1/wd
c 4k of 14k [1] /u1/wd/.profile
c 4k of 18k [1] /u1/wd/.cshrc
c 4k of 22k [1] /u1/wd/.login
...
c 112k of 53498k [1] /u1/wd/stuff/transnosym.log;2
c 280k of 53778k [1] /u1/wd/stuff/c3h3nh.log
Backup complete.
Backup /u2
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u2
c 2k of 8k [1] /u2/lost+found
c 2k of 10k [1] /u2/voth
c 4k of 14k [1] /u2/voth/.profile
c 4k of 18k [1] /u2/voth/.cshrc
...
c 10k of 33826k [1] /u2/wm/chain.mole/filout.2
c 458k of 34284k [1] /u2/wm/chain.mole/coord
c 368k of 34652k [1] /u2/wm/chain.mole/lc
Backup complete.
Backup /u3
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u3
c 2k of 8k [1] /u3/lost+found
c 2k of 10k [1] /u3/smith
c 4k of 14k [1] /u3/smith/.profile
c 4k of 18k [1] /u3/smith/.cshrc
...
c 4k of 320k [1] /u3/gf/.cshrc
c 4k of 324k [1] /u3/gf/.login
Backup complete.
Backup /u4
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u4
c 2k of 8k [1] /u4/lost+found
c 2k of 10k [1] /u4/jo
c 4k of 14k [1] /u4/jo/.profile
c 4k of 18k [1] /u4/jo/.cshrc
...
c 4k of 560k [1] /u4/ml/.cshrc
c 4k of 564k [1] /u4/ml/.login
Backup complete.
Backup /u5
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u5
c 2k of 8k [1] /u5/lost+found
c 2k of 10k [1] /u5/alex
c 4k of 14k [1] /u5/alex/.profile
c 4k of 18k [1] /u5/alex/.cshrc
c 4k of 22k [1] /u5/alex/.login
Backup complete.
Backup /u6
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u6
c 2k of 8k [1] /u6/lost+found
c 2k of 10k [1] /u6/dhb
c 4k of 14k [1] /u6/dhb/.profile
...
c 4k of 66k [1] /u6/mt/.cshrc
c 4k of 70k [1] /u6/mt/.login
Backup complete.
Backup /u7
Backup started. Please wait...
c 2k of 4k [1] /
c 2k of 6k [1] /u7
c 2k of 8k [1] /u7/lost+found
c 2k of 10k [1] /u7/er
c 4k of 14k [1] /u7/er/.profile
c 4k of 18k [1] /u7/er/.cshrc
...
c 4k of 3400k [1] /u7/jl/.login
c 2k of 3402k [1] /u7/jl/.news_time
c 14k of 3416k [1] /u7/jl/q.q
Backup complete.
Rewind tape.
List 1st Backup set (/usr) <---- but it isn't it is
/u1, the 3rd set
Tape listing started. Please wait...
Tape Header
===========
label: Partial Backup
created: Mon Sep 3 23:06:57 1990
device: /dev/rmt/tps0d6nr
user: root
group: sys
system: a.chem a.chem 3.3 06011629 IP7
bru: "SGI Release 1.01"
release: 9.11
variant: 1
Files
=====
drwxr-xr-x 21 root sys 0 Sep 3 22:37 /
drwxr-xr-x 4 root sys 0 Jul 27 16:59 /u1
drwx------ 2 root sys 0 Jul 26 17:18 /u1/lost+found
drwxrwxr-x 6 dailey dailey 0 Aug 26 09:09 /u1/wd
-rw-r--r-- 1 dailey dailey 534 Jul 27 16:59 /u1/wd/.profile
-rw-r--r-- 1 dailey dailey 541 Aug 10 13:43 /u1/wd/.cshrc
...
-rw-r----- 1 dailey dailey 97597 Aug 25 22:50 /u1/wd/stuff/transnosym.log;2
-rw-r----- 1 dailey dailey 248479 Aug 28 15:24 /u1/wd/stuff/c3h3nh.log
Tape listing complete.
List 2nd Backup set (/u0) <--- but it isn't it
is /u4, the 6th
Tape listing started. Please wait... set
Tape Header
===========
label: Partial Backup
created: Mon Sep 3 23:30:41 1990
device: /dev/rmt/tps0d6nr
user: root
group: sys
system: a.chem a.chem 3.3 06011629 IP7
bru: "SGI Release 1.01"
release: 9.11
variant: 1
Files
=====
drwxr-xr-x 21 root sys 0 Sep 3 22:37 /
drwxr-xr-x 11 root sys 0 Aug 28 13:19 /u4
drwx------ 2 root sys 0 Jul 26 17:19 /u4/lost+found
drwxrwxr-x 4 owrutsky hochstra 0 Aug 30 21:14 /u4/jo
-rw-r--r-- 1 owrutsky sys 534 Aug 10 13:06 /u4/jo/.profile
...
-rw-r--r-- 1 lester sys 534 Aug 28 13:20 /u4/ml/.profile
-rw-r--r-- 1 lester sys 478 Aug 28 13:20 /u4/ml/.cshrc
-rw-r--r-- 1 lester sys 476 Aug 28 13:20 /u4/ml/.login
Tape listing complete.
List 3rd Backup set (/u1) <---- but it isn't, it is
/u7, the 9th set
Tape listing started. Please wait...
Tape Header
===========
label: Partial Backup
created: Mon Sep 3 23:34:35 1990
device: /dev/rmt/tps0d6nr
user: root
group: sys
system: a.chem a.chem 3.3 06011629 IP7
bru: "SGI Release 1.01"
release: 9.11
variant: 1
Files
=====
drwxr-xr-x 21 root sys 0 Sep 3 22:37 /
drwxr-xr-x 5 root sys 0 Aug 9 15:20 /u7
drwx------ 2 root sys 0 Jul 26 17:19 /u7/lost+found
drwxrwxr-x 2 rescorla cooperma 0 Aug 24 09:03 /u7/er
-rw-r--r-- 1 rescorla sys 534 Aug 9 15:16 /u7/er/.profile
-rw-r--r-- 1 rescorla sys 478 Aug 9 15:16 /u7/er/.cshrc
...
-rw-r--r-- 1 lalonde sys 476 Aug 9 15:20 /u7/jl/.login
-rw-r--r-- 1 lalonde voet 0 Aug 30 10:38 /u7/jl/.news_time
-rw-r----- 1 lalonde voet 9800 Aug 30 16:40 /u7/jl/q.q
Tape listing complete.
List 4th Backup set (/u2)
(then it just hangs here because /u7 is last partition backed up to tape)
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