Topic: Flexbackup and Onstream DI30 ?

[Gerard]

Does anybody already have flexbackup running with an Onstream DI30 tapedrive ?

Because taper stops after 4GB and as far as my information goes, only taper works with the DI30 drive.

Because the 4GB limitations, i hope a lot of people started to look at flexbackup again to make backups and possible someone got flexbackup wordking with this rive..

I woeld love to hear from it...

Gerrad

[David Helmuth]

Yes, I am using it and it has been working for me for about a month or so.  Working pretty well.  I have done a few individiual file restores and have been able to pull information off the tape, so it appear to be working OK.

Other than following the how to at:

http://www.e-smith.org/docs/howto/contrib/onstreamdi30-howto.htm

I have used the stock flexbackup stuff with 2 execptions.

1 - Changed the block size to 32 (an OnStream requirement)

2 - Changed the Buffering to 24M (while I don't know that this is required, I have found it to be faster with this)

Both of those were done by copying the default templates and making changes.

Seems to be working well.

Please let me know if you have any questions.

-Dave

[Gerard]

This sounds very good......

can you give me some explicit information oubout what files and entry's you edited ?

for example wich configuration file and where it resides ?

tia
gerard

[David Helmuth]

Sure,

** First, make the directory under the templates-custom:

mkdir -p /etc/e-smith/templates-custom/etc/flexbackup.conf

** Copy over the default fragments

cp /etc/e-smith/templates/etc/flexbackup.conf/10Blocksize /etc/e-smith/templates-custom/etc/flexbackup.conf

cp /etc/e-smith/templates/etc/flexbackup.conf/10Buffering /etc/e-smith/templates-custom/etc/flexbackup.conf

** Make the changes

pico /etc/e-smith/templates-custom/etc/flexbackup.conf/10Blocksize

(Change the block size from '10' to '32')

pico /etc/e-smith/templates-custom/etc/flexbackup.conf/10Buffering

(Change the buffer megs from '3' to '24') - By the way I use 24 because from the OnStream osst.o install page.  I have not really tested to see if more or less would help/hurt.


**  Expand the new flexbackup.conf
/sbin/e-smith/expand-template /etc/flexbackup.conf

That should take care of it.

Make sure your backups are enabled in Server-Manager and I think you should be set.

Please let me know how it goes!

-Dave

[David Helmuth]

Sorry I almost forgot ...

** Set the backup device to non-rewinding (Otherwise, your "/" backup will get overwritten with the "/boot" backup.  That would not be a good idea.

/sbin/e-smith/db configuration setprop backup Device /dev/nst0
/sbin/e-smith/signal-event conf-backup

OK, now I think you might be set....

-Dave

[Darrell May]

David, as the current Howto is outdated, and we don't want people to use Taper anymore....  I suggest you post a revised HowTo on e-smith.org for all to benefit

Regards,

[David Helmuth]

Good idea.  Thanks for the suggestion.  Check out:

http://www.helmuth.net/mitel-sme/FlexDI30/FlexDI30.html

[Gerard]

Thanks guys, this is helping....
 As for an addition to the how-to...

in another post : http://forums.contribs.org/index.php?topic=14515.msg55413#msg55413
Kelvin says that it runs fine on a SME 5.5 server with the exception that the makedevs.sh script is not needed anymore....

Maybe you can add this to the How-to...

gerard

[Charlie Brady]

David Helmuth wrote:

> Good idea.  Thanks for the suggestion.  Check out:
>
> http://www.helmuth.net/mitel-sme/FlexDI30/FlexDI30.html

Where can the source code used to build the module ostt.o be found?

Charlie

[David Helmuth]

This is page that has some of the background on the

http://www.linux1onstream.nl/test/

Here is what I believe is the correct source

http://www.linux1onstream.nl/test/onstream-20010603.tar.gz

Thanks and please let me know if you have any other questions!

[Gerard Mokkenstorm]

Small question...:

Is there a difference between an osst.o for the DI30 and the DI30-Fast ?

gerard

[David Helmuth]

Not that I have been able to tell.  Though I haven't been able to find a statement that says for sure.  The different versions of osst.o appear to be related to what version of the kernel you are running, not what version of OnStream drive.