Dumping to another servers tape drive
Douglas Phillipson
dougp at intermind.net
Tue Oct 5 16:42:22 UTC 2004
Bob Chiodini wrote:
> On Tue, 2004-10-05 at 11:49, Douglas Phillipson wrote:
>
>>Wayne Leutwyler wrote:
>>
>>>On Oct 4, 2004, at 6:04 PM, Douglas Phillipson wrote:
>>>
>>>
>>>>I run:
>>>>
>>>>
>>>>/sbin/dump -0uf - /dev/sda9 | ssh rsldata 'dd of=/dev/nst0'
>>>>
>>>>It seems to go to the tape fine. Then on rsldata I run:
>>>>
>>>>
>>>>/sbin/restore -if /dev/nst0
>>>>
>>>>I get the error:
>>>>
>>>>/sbin/restore: Tape block size (512) is not a multiple of dump block
>>>>size (1024)
>>>>
>>>>I've setup ssh so as to not require a password for sshing to rsldata.
>>>>
>>>>I try to adjust block sizes in both "dd" and restore to no avail. Any
>>>>idea what I'm doing wrong? This typically works fine on Unix
>>>>(Solaris) but not Fedora.
>>>>
>>>>Thanks
>>>>
>>>>Doug P
>>>>
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>>>>fedora-list mailing list
>>>>fedora-list at redhat.com
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>>>>
>>>>
>>>
>>>Have you looked at Amanda? www.amanda.org
>>>
>>>This might do what you are looking to do.
>>>
>>
>>Thanks but I'm really just trying to get a dump of the machine prior to
>>an upgrade. So I could still use some help with my question.
>>
>>Thanks
>>
>>Doug P
>
>
> Doug,
>
> Have you tried dd obs=1024 (or some multiple thereof). Also, did you
> rewind the tape before the restore (sorry :-)).
>
> Bob...
>
Thanks for the help Bob. I actually just found that if I do:
export RSH='ssh'
/sbin/dump -b 2 -0uf rsldata:/dev/nst0 /dev/sda9
Then on rsldata do:
restore -if /dev/nst0
It seems to work properly. I would have thought that restore would have
picked up the block size automatically, but apparently not if you don't
specify a block size with dump.
Thanks to all that responded.
Regards
Doug P
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