Thanks. My understanding of role numbers is that they are the order of the disks in which stripes are written, so role 0 has the first stripe, role 1 the second, etc etc. This is *normally* irrelevant, but should the array ever get trashed, the disks need to be listed *in* *that* *order* in a new --create statement. Can someone - Neil? Phil? - please confirm I've understood that correctly before I update anything ... (and I will be posting updates to the list - anything I'm not sure of I will be asking here to check I get it right :-) Cheers, Wol On 23/09/16 18:35, WNSDEV wrote: > Hi Wol, > > Thanks for your work on the wiki... I'm sending a virtual bouquet. I've been tracking down an issue regarding role numbers which I've posted to the list http://marc.info/?l=linux-raid&m=147439325405842&w=2. In that process I've come across other postings that say information in the wiki is incorrect so maybe this is an opportunity to update this part of the wiki. > > According to https://raid.wiki.kernel.org/index.php/Mdstat we find: > > "The raid role numbers [#] following each device indicate its role, or function, within the raid set. Any device with "n" or higher are spare disks. 0,1,..,n-1 are for the working array. Notice that there is no device 3." > > But according to the following two postings, http://www.spinics.net/lists/raid/msg44491.html and http://www.spinics.net/lists/raid/msg49766.html > the information in the wiki about the numbers in brackets (role numbers ) is wrong. > > Thanks, > Peter Sangas > -- 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
