Frecovery - Error

[Faizer]

I have HP UX11.11. I use HP Ultrium Tapes to backup my system through SAM [fbackup].
The log provides me a successful backup. On restoration/ Verification I do get the following error.

frecover(2114): read error from input device (I/O error)
frecover(2114): read error from input device (I/O error)
frecover(2113): unable to resync backup media

This error is coming on all my backups.
To verify I use frecover -Nxv -f /dev/rmt/0m 2> index&
In addition I use HP Ultrium tapes. make C7971A.
Is this a media problem, or a hardware problem or a problem with frecover, or are there any patches to be applied.
Please Help....
best regards
Faizer

[Paula J Frazer-Campbell]

HI

Check the backup device, your are using "/dev/rmt/0m", should it be 1m or 2m ?


Paula

[Faizer]

The recovery command as registered in the br_log file
frecover -xv -o -X -g /var/sam/graphTBAa22918 -f /dev/rmt/0m

The restore goes through to a certain extent then gives the error.

[Paula J Frazer-Campbell]

HI


Options:-

Clean the drive - use band new tape and try from scratch.

Is the backup spanning two tapes?


Paula

[Faizer]

Its not spanning 2 tapes.
Its brand new tapes that are used and its Ultrium [ HP brand].

Is it required to apply this particular patch..
PHCO_28998

[Paula J Frazer-Campbell]

Hi
I would apply that patcth as it is cumulative one and appears to cover the problem you are having.

Paula

[Faizer]

Hi
Well of of my colleagues asked me to do teh following.

- Edit the configuration file /etc/sam/br/fbackup_config as follows

blocksperrecord 256
records 64
checkpointfreq 1024
readerprocesses 6
maxretries 5
retrylimit 5000000
maxvoluses 200
filesperfsm 2000

What would this do.

[Senthil Kumar .A_1]

hello faizer,

If ur collegues suggest that there is a problem with
/etc/sam/br/fbackup_config file ,there is a way to test indeed it is a problem with that file or not,

since the file seems to be sam related file ,you can try taking backup using fbackup utility without sam.Refer man pages of fbackup for its usage.then try restoring from this backup using frecover.If u find no error while recovering based on this activity,then u can conclude that there must indeed be some configuration error with /etc/sam/br/fbackup_config file.

best of luck

senthil