----- Original Message ----- From: "Neil Brown" <neilb@xxxxxxx> To: "JaniD++" <djani22@xxxxxxxxxxxxx> Cc: <linux-raid@xxxxxxxxxxxxxxx> Sent: Thursday, January 12, 2006 4:07 AM Subject: Re: where is the spare drive? :-) > On Monday January 2, djani22@xxxxxxxxxxxxx wrote: > > > > 5. The question > > > > Why shows sdh2 as spare? > > The MD array size is correct. > > And i really can see, the all drive is reading, and sdh2 is *ONLY* writing. > > > > man mdadm > > Towards the end of the CREATE MODE section: > > When creating a RAID5 array, mdadm will automatically create a degraded > array with an extra spare drive. This is because building the spare > into a degraded array is in general faster than resyncing the parity on > a non-degraded, but not clean, array. This feature can be over-ridden > with the --force option. > > > I hope this clarifies the situation. > > NeilBrown Ahh, this was avoid my attention. The mdadm man page (and functionallity) is quite large. I think this is more important to let some people to overwrite own data. I think it is neccessary to place some note to the man page to warn people about this exception. Anyway this is a good idea! :-) Thanks to note me about this. Cheers, Janos > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
