Registered: Mar 2003
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2 Drive to 2 drive upgrade help needed

I'm trying to upgrade a series 2 from 2x100Gb Maxtor drives to 2x120 Gb Seagates (because of noise, not capacity.)

When I try to use the command from Hinsdale's instructions (Configuration 5), :

.mfsbackup -Tao - /dev/hda /dev/hdb | mfsrestore -s 127 -xzpi - /dev/hdc /dev/hdd

I get the message that the destination drive isn't large enough. I'm trying to preserve a bunch of recordings, or I'd use a quicker method than this. The drives are seen at full capacity at startup.

I suspect that compression is the issue here, but I don't know for sure.

Any ideas?

Thanks

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MosleyH

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Registered: Jul 2002
Location: Cambridgeshire, UK
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What happens if you leave out the x ?

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Registered: Mar 2003
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no idea. What would that do (or not do) exactly?

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MosleyH

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Registered: May 2001
Location: Los Angeles
Posts: 3155

That would not try to expand the partitions to grab the extra space on the 120s. I think Robert's point may be that you might be out of partitions and you might be getting a slightly incorrect error message - or that since you said you don't need the extra space, this can simply and help troubleshoot.

Michael

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Registered: Jul 2002
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Yes, just thinking troubleshooting (you can achieve the effect (if any) of -x with mfsadd later). I can't think of anything that would cause this error (even -x should just say 'nothing to add' if there's no room), so it seems sensible to reduce the complexity of the command to see if that isolates the problem.

It might be interesting to see what a restored backup looks like on the new drives. You could restore a backup file (with -x), or do

mfsbackup -so - /dev/hda /dev/hdb | mfsrestore -s 127 -xzpi - /dev/hdc /dev/hdd

and see how many hours it gives you.

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Registered: Mar 2003
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without the x, it seems to be working. . .

I'll know more in the morning when I test the new drives.

If it DOES work, how would I go about using mfsadd to try and reclaim the extra 40Gb?

Not that I'm greedy or anything, but you know the old saying:

"You can never be too rich, too thin or have too much drive space"

thanks

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MosleyH

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Registered: Jul 2002
Location: Cambridgeshire, UK
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mfsadd -x /dev/hdc /dev/hdd

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