Usually this is the order I take. I remove your sdb from the hardware. The
whole purpose of the raid system is that sda now kicks in at startup The spare
can now replace sdb in the setup on your command. Now you shut down, restart
check it and then it's time to put in the new stuff. There is a better way
without hardware action. To me this feels more failsafe.Verzonden vanaf mijn
Samsung-apparaat
-------- Oorspronkelijk bericht --------
Van: Gregory Avedissian <avedis...@gmail.com>
Datum: 01-05-2019 17:28 (GMT+01:00)
Aan: rivendell-dev@lists.rivendellaudio.org
Onderwerp: [RDD] RAID management question
Current server setup is raid1 with three drives. (pair and a spare) with
lvm./var is on its own logical partition, and the library has outgrown the
disk.The motherboard has four sata inputs. I want to reduce the existing raid
to two drives so I can put in two large drives and make a second raid to hold
/var.The three existing drives are sda, sdb and sdc. I want to remove sdb and
put sdc (the spare) in its place.The question is, what order do I do things?
Which drive(s) do I fail, and when? Can I just shut the machine down, remove
sdb and plug sdc into the second sata input? Then reboot and remove the missing
sdc from the array? Does mdadm identify the drive by its device name or by the
uuid? Will it get mad at me if I change the order of the
drives?Thanks,Greg_______________________________________________Rivendell-dev
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