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- Newsgroups: comp.sys.sun.admin
- Path: sparky!uunet!ods!chris
- From: chris@ods.com (Chris Atkins)
- Subject: Dump locks up tape drive
- Message-ID: <1992Jul22.161504.14652@ods.com>
- Organization: Optical Data Systems, Inc.
- X-Newsreader: Tin 1.1 PL4
- Date: Wed, 22 Jul 1992 16:15:04 GMT
- Lines: 42
-
- I am trying to perform level 0 dumps of all sun's on my network from a common
- machine. The common machine is a sun IPX running sun os 4.1.1. The machines
- on the network are sun IPx's running sun os 4.1.1 and 4.1.2 and sun IPC's
- running sun os 4.1.1. I have set up a cron job which runs a script to dump
- all partitions on all disks on the network. The partitions for the remote
- machines are dumped using rdump. Following is the rdump command:
- rsh sidney -n /usr/etc/rdump 0ufdsb U2-fddi:/dev/nrst8 54000 13000 126 /dev/sd0g
-
- When this command is executed, the following output is produced from rdump:
- DUMP: Date of this level 0 dump: Fri Jul 17 13:35:24 1992
- DUMP: Date of last level 0 dump: the epoch
- DUMP: Dumping /dev/rsd1g (/usr) to /dev/nrst8 on host U2-fddi
- DUMP: mapping (Pass I) [regular files]
- DUMP: mapping (Pass II) [directories]
- DUMP: estimated 174156 blocks (85.04MB) on 0.02 tape(s).
- DUMP: dumping (Pass III) [directories]
- DUMP: dumping (Pass IV) [regular files]
- DUMP: 73.58% done, finished in 0:01
- DUMP: Broken pipe
- DUMP: The ENTIRE dump is aborted.
-
- At this point, all further dump commands indicate that the device /dev/nrst8 is
- busy. I must reboot the local machine to be able to access my tape drive.
-
- There are no other error messages to help me isolate the problem. I tried
- using the "a" option for dump to determine if I could tell where the dump was
- hanging up. I was not sure how the output correlated to the actual data being
- put to tape, is an entry added after or before the file is written to tape, is
- the output buffered so that I may not be getting the last files written?
-
- I am using a sun 5.0Gbyte 8mm Tape Drive for my backups and am backing them
- up on an fddi network. My backups work for all partitions on all machines
- except for two machines on the partition containing /usr. The backup for this
- partition fails consistantly on one machine and occasionally on another.
-
- Any input on how to track the problem, or what I am doing wrong would be
- greatly appreciated.
-
- Chris Atkins
- chris@ods.com
-
-
-