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11-24-2004 05:15 AM
11-24-2004 05:15 AM
I have an hp-ux 11.11 box with two tapes : the first is a very fast Tape (HP Ultrium 230)with huge storage capacity, and the other is normal DDS3 (DAT 24) tape. I have an ignite backup of the machine on a 24 GB tape made with DDS drive. I try to extract from this tape, but the process is too slow. Is it possible to COPY this ignite image from DDS tape to the ultruim one and then extract files quickly from the ultrium (I know that, read and write processes on DDS tapes are much more faster than search process). Waiting from you !!!!!!!
All replies will be highly appreciated.
Tamer.
Solved! Go to Solution.
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11-24-2004 05:22 AM
11-24-2004 05:22 AM
Re: Copy an Ignite Image Tape to Another one
Pete
Pete
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11-24-2004 05:30 AM
11-24-2004 05:30 AM
Re: Copy an Ignite Image Tape to Another one
You have to temporarily stage the image on the system before you can copy it to the ultrium. The tape consists of two parts. LIF area and the OS archive. You will have to extract both of them seperately onto a filesystem.
dd if=/dev/rmt/0mn of=/filesystem/lif bs=2k
dd if=/dev/rmt/0mn of=/filesystem/osarchive bs=1024k
Do the same thing changing the if and of arguments.
dd if=/filesystem/lif of=/dev/rmt/1mn bs=2k
dd if=/filesystem/osarchive of=/dev/rmt/1mn bs=1024k
Personally, I don't like to extract from the ignite tape other than to recover the whole system. You can create 'fbackup' tape periodically if you need to restore any files. That will be a lot faster than ignite.
-Sri
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11-24-2004 05:34 AM
11-24-2004 05:34 AM
Re: Copy an Ignite Image Tape to Another one
-Sri
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11-24-2004 05:37 AM
11-24-2004 05:37 AM
Re: Copy an Ignite Image Tape to Another one
;^)
Pete
Pete
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11-24-2004 05:39 AM
11-24-2004 05:39 AM
Re: Copy an Ignite Image Tape to Another one
the two posts are really usesful.
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11-24-2004 05:40 AM
11-24-2004 05:40 AM
Re: Copy an Ignite Image Tape to Another one
You should be presenting Pete with 10 points and me with probably 3 or less.
-Sri
PS: 0 for this please.
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11-24-2004 05:52 AM
11-24-2004 05:52 AM
Re: Copy an Ignite Image Tape to Another one
both of you are really professional, and funny !!!!
Tamer.
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11-24-2004 06:05 AM
11-24-2004 06:05 AM
Re: Copy an Ignite Image Tape to Another one
I forgot how to write to a remote tape on another machine ? i.e., what is all required permissions steps to write to : remotesys:/dev/rmt/0m ??
Tamer.
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11-24-2004 06:55 AM
11-24-2004 06:55 AM
SolutionYou will need to be able to either 'ssh' (secured) or 'remsh' (unsecured) to the other system. For 'ssh' setup public/private key authentication. For 'remsh' setup .rhosts in the home directory of 'root' as "hostA root". Ensure that you are able to do 'remsh hostB ll /etc/passwd' successfully without supplying the password. Once that is successful, rest is easy.
dd if=/dev/rmt/0mn bs=2k |remsh hostB dd of=/dev/rmt/1mn
Do the same for the os_archive. Remember that you have to run the tape operations sequentially otherwise it may not work. Before doing anything put the tapes in the original position by runing 'mt -t /dev/rmt/0m rew' command.
-Sri