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how to share one tape between two hosts

 
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Rambo_1
Regular Advisor

how to share one tape between two hosts

Hi,
I have a DDS4 tape ,it connects whit the host-1 now . but i also want to use the tape in another host-2. for example,I want to make a make_recovery tape in host-2.
it's impossible to remove the tape from host-1.
My question is what method to make a make_recovery tape with host-2 and use the tape in host-1 ?
5 REPLIES 5
Suraj Singh_1
Trusted Contributor

Re: how to share one tape between two hosts

IF the DAT Drive is an external one, you can physically connect it to host-2 and use make_recovery command.

Make_recovery doesn't has any option by which it can use the tape drive of another host.

Rgds
What we cannot speak about we must pass over in silence.
Paul_481
Respected Contributor
Solution

Re: how to share one tape between two hosts

Hi,

You cannot use make_tape_recovery from another tape drive. You can use make_net_recovery instead.

Check this thread for details.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=810772

Regards,
Paul
Tim D Fulford
Honored Contributor

Re: how to share one tape between two hosts

OK, This may not work...

But if you equivalence the two boxes such that you can do "remsh host1 ls" from host2 & visa versa you MIGHT be able to do the following (on host2)

make_tape_recovery -vI -x inc_entire=vg00 -a host1:/dev/rmt/0mn

In effect you are saying to host2 use tape "host1:/dev/rmt/0mn". This syntax should trigger the system to use the host1 tape device remotely.

But make_net_recovery is proably the best option/solution for your problem... I just wanted to answer you _specific_ question (rather than solve you actual problem!!!)

goodluck

Tim
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Sudeesh
Respected Contributor

Re: how to share one tape between two hosts

You can use make_net_recovery if you dont have a local tape drive attached. Ensure your host-1 has sufficent diskspace to create the archive of host-2. In addition you will require Ignite-UX server installed to recover from make_net_recovery image.

See the following document section: 9.System Recovery-> Creating a Recovery Archive using the Network and Tape for detailed steps.

http://docs.hp.com/en/B2355-90872/index.html

Sudeesh
The most predictable thing in life is its unpredictability
Thayanidhi
Honored Contributor

Re: how to share one tape between two hosts

You can share the external tape drive between two servers, provided both servers should have compatible SCSI adaptor free, and must make sure that there is no ID clash in SCSI bus. Generally the initiator (controller) SCSI id is set to 7. You must change this to a unique ID in the SCSI bus. Refer to coresponding manauls.

I suggest you work towards ignite server and make_net_recovery.

make_tape_recovery will work only for local tape device!

Regds
TT
Attitude (not aptitude) determines altitude.