Hello Netbackup Gurus,
I'm a Legato Networker admin that has been draffted to help
fix a Netbackup problem here at my company. My knowledge
of and experience with Netbackup is very limited so please
bear with me and my ignorance of this product. I have a situation
where backups will start and happily backup for a while and then exit
with a write error. The environment is:
Netbackup 3.4 (no patches as far as I can tell)
STK 9710 library with 9840 drives
OS is Solaris 7
E420R server
Tape drives connected to the server via Crosspoint 4200
Fiber channel to SCSI routers
Below is an excerpt from the bptm log that starts with the line that says it's
starting to write through to the point where it exits with a write error. If
anyone
can shed some light on what is happening I'd appreciate it. The tapes seem
to be randomly rewinding for some reason. I have read that the
error I'm seeing can be caused when multiple servers are sharing the drives
in a SAN or SSO environment but I don't believe this is the problem. The only
thing the server is trying to backup is itself and the only apps that are using
the drives are Netbackup and Storage Migrator.
Thanks alot,
Duncan
13:06:30 [13089] <2> write_data: received first buffer (262144 bytes), begin
writing data
14:17:32 [13089] <2> write_backup: write_data() returned, exit_status = 0,
CINDEX
= 0, backup_status = -3
14:17:32 [13089] <2> write_backup: tp.tv_sec = 1036448252, stp.tv_sec =
1036443990, tp.tv_usec = 321332, stp.tv_usec = 809594, et = 4261512,
mpx_total_kbytes = 35708416
14:17:32 [13089] <2> signal_parent: sending SIGUSR1 to bpbrm (pid = 13085)
14:17:32 [13089] <2> io_close: closing
/usr/openv/netbackup/db/media/tpreq/HF0231,
from bptm.c.13083
14:17:32 [13089] <2> write_backup: block position check: actual 0, expected
4280668319
14:17:32 [13089] <2> getsockconnected: host=merlin.incyte.com service=bpdbm
address=10.33.0.54 protocol=tcp non-reserved port=13721
14:17:32 [13089] <2> bind_on_port_addr: bound to port 46085
14:17:32 [13089] <2> check_authentication: no authentication required
14:17:33 [13089] <16> write_backup: FREEZING media id HF0231, External event
caused rewind during write, all data on media is lost
14:17:33 [13089] <2> log_media_error: successfully wrote to error file -
11/04/02
14:17:33 HF0231 7 WRITE_ERROR
14:17:33 [13089] <2> check_error_history: called from bptm line 13122,
EXIT_Status
= 84
14:17:34 [13089] <2> check_error_history: drive index = 7, media id = HF0231,
time
= 11/04/02 14:17:33, both_match = 0, media_match = 0, drive_match = 0
14:17:34 [13089] <2> tpunmount: tpunmount'ing
/usr/openv/netbackup/db/media/tpreq/HF0231
14:17:34 [13089] <2> TpUnmountWrapper: SCSI RELEASE
14:17:34 [13089] <2> bptm: EXITING with status 84 <----------
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