On Tue, Feb 17, 2015 at 9:19 PM, William Park <[email protected]> wrote:
> Disk failed last September, and you're replacing it now? Boy, you got > balls! > > You are better off to use whatever utility you used in the first place. > Manual typing would go something like > man mdadm > cat /proc/mdstat > understand above commands > mdadm -D -v /dev/md0 > what does this command do/mean? > mdadm /dev/md0 --add /dev/sdx > (I understand I will need a different letter instead of the x) what does this command do/mean? > where > /dev/sdx is the new disk. Here, the new device should be the "same" > as the old. If the old was a partition (eg. /dev/sda1), then the > new should be a partition. If the old was entire device (eg. > /dev/sda), then the new should be entire device also. > -- > I am not asking the questions to be confrontational just have learned that typing in commands the results of which you do not know or the effect you do not know/understand can have large effects. (In the past I have too often totally borked my system and I really don't want to take two weeks from my life and spend all day trying to reestablish things.) Thanking you for your interest and assistance! Dee > William > > > On Tue, Feb 17, 2015 at 03:42:07PM -0600, o1bigtenor wrote: > > Greetings > > > > I have been running a raid 10 array for almost 3 years. > > > > Last September on a reboot (forced by Firefox and kernel memory > interaction > > problems) came up with one of the drives being listed as DOA. > > The raid array has continued to run on 3 drives although on reboots there > > is much complaining from whatever in the boot up process. > > I had the replacement drive sent to me and today I installed the drive. > > > > I was under the assumption that the raid array would rebuild itself upon > > startup with a new drive (4th out of 4). > > > > This did not happen. > > > > I am running Debian Jessie (testing) and have the whole time in question. > > I can mount the array and it is visible. > > I'm looking at backing up the array (on blu-ray discs) but as I'm now to > > circa 45 GB of data and I was at about 22 GB when I last did a backup > this > > is going to be a momentous event. > > > > How do I ask mdadm to include this new drive into the array? (Without > > borking everything!! I have found lots of instructions on how to create > but > > none in an hour of trying different search phrases on how to rebuild or > how > > to cause the array to rebuild itself. I have only been able to find > > instructions for when the array is totally sick and I'm not there (yet - > - > > - grin!) but I don't want to wait until another drive craps out to get > > things going.) > > > > TIA > > > > Dee > > > --- > > Talk Mailing List > > [email protected] > > http://gtalug.org/mailman/listinfo/talk > > --- > Talk Mailing List > [email protected] > http://gtalug.org/mailman/listinfo/talk >
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