Messages in this thread | | | Date | Wed, 14 Feb 2007 08:28:25 +0100 | From | "Patrick Ale" <> | Subject | Re: [PROBLEM] Can't start MD devices by using /dev/disk/by-id |
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> > > Just out of curiosity, why did you do this in such a manual way instead > of just using the UUID? I would think every time you replace a failed > drive you would have to go edit the files all over again.
Oh, there is a very simple reason for that. These md arrays exist for a year of three allready, from the time I used raidtool instead of mdadm.
So when I switched to to mdadm, I just got the /etc/raidtab file and migrated it to /etc/mdadm.conf, since /etc/raidtab worked with blockdevices and not UIDs (correct me if I am wrong and overlooked this featute), the mdadm.conf ended up with these devices too.
Next to that, there is a, for me at least, practicle reason. I keep adding harddisks, and when I use the block devices rather than UIDS, and I get problems like yesterday, I have the blockdevice or serial number of the disk, which makes it easier to look in my case where the potential problem might be. If I work with UIDs and something goes wrong when doing an mdadm --assemble, then I'll first have to look up which disks belong to which UID, which costs time.
OR! which is also very possible, maybe there is a way easier way to pinpoint which drives belong to which array before starting the array, which I don't know about yet. So please, if you have suggestions, let me know :)
Take care!
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