Dump/Restore for system migration

Chris Maness chris at chrismaness.com
Mon Jan 19 19:15:59 UTC 2015


On Mon, Jan 19, 2015 at 11:08 AM, Michael Sierchio <kudzu at tenebras.com>
wrote:

> If you're using a filesystem that supports snapshots, do the dump against
> the snapshot, or use dump with the -L option, to indicate that you're
> taking a dump of a live filesystem.
>
> - M
>
> On Mon, Jan 19, 2015 at 10:50 AM, Chris Maness <chris at chrismaness.com>
> wrote:
>
>> I have used dump/restore for system migration a couple of time and noticed
>> it is pretty good, but every once in a while it will miss or corrupt a
>> file.  Is there a better way to do this?  I would imagine having a system
>> mounted r/o would help, but this is not always possible.  Is there a way
>> to
>> check the deltas between systems manually after migration to see if any
>> files need to be merged or copied.  I would imagine the files that are in
>> jeopardy are ones that are being written to while the dump is taking
>> place.  I had a file the keeps track of rss feeds end up missing on the
>> target system.
>>
>> Any advice here?
>>
>> Thanks,
>> Chris
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>
>
Yes, I am using arguments -Luanf.  I made a script to do this automagically
a long time ago.  I am currently using UFS.  I am not sure if it supports
snapshot.

Thanks,
Chris


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