root@Zetta:~# blockdev --getpbsz /dev/sdc 4096 Idid mdadm -E /dev/sd[abcefg] here https://pastebin.com/zzz3jFvP the disk was blank 2017-06-25 10:22 GMT+02:00 Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxxx>: > blockdev --getpbsz /dev/sdc > > It looks like you're using 512e drives (4KB w/ 512b emulation) > > If sdc won't sync because it's busy something else has control of it. > > Is it a blank drive? If there's an old LVM2 vg on it the LVM drivers may be > reserving the disk. Is device-mapper-multipath running? If so it'll reserve > the drive and expect you to use whichever /dev/dm* device represents it. > > You could also run lsof to see what process has it open. > > > > On Sun, Jun 25, 2017 at 01:11 Hubert Reevez <hubereevez@xxxxxxxxx> wrote: >> >> I did add before assemble ! But mdadm always gave me the same answer. >> >> Could you send me more help to check the block ? >> >> In my previous email I wrote my fdisk -l here : >> >> Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes >> 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors >> Units = sectors of 1 * 512 = 512 bytes >> Sector size (logical/physical): 512 bytes / 4096 bytes >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> Disk identifier: 0x00000000 >> >> Disk /dev/sdb doesn't contain a valid partition table >> >> Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes >> 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors >> Units = sectors of 1 * 512 = 512 bytes >> Sector size (logical/physical): 512 bytes / 4096 bytes >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> Disk identifier: 0x00000000 >> >> Disk /dev/sdc doesn't contain a valid partition table >> >> Is it not the answer you look at to help me ? >> >> thanks again... >> >> 2017-06-25 1:40 GMT+02:00 Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxxx>: >> > I've added/replaced with larger drives several times, no problem. Just >> > did >> > it on Thursday. >> > >> > Check your new drive to make sure the block size specs are the same. >> > 512b >> > blocks versus 4K or 520b if it's SAS with crc block T10 formatting. Use >> > the >> > blockdev command or sysfs to check. >> > >> > On Sat, Jun 24, 2017 at 16:15 Hubert Reevez <hubereevez@xxxxxxxxx> >> > wrote: >> >> >> >> thanks for your answer !!! >> >> >> >> tried to zero superblock sdc : went ok. >> >> mdadm --add /dev/md0 --verbose /dev/sdc mdadm: add new device failed >> >> for /dev/sdc as 7: Invalid argument >> >> >> >> I really think it's because of this larger disk for what I red on >> >> http://www.linuxquestions.org :( >> >> >> >> >> >> >> >> 2017-06-25 0:37 GMT+02:00 Jeff Johnson >> >> <jeff.johnson@xxxxxxxxxxxxxxxxx>: >> >> > Did you actually add it? (--add /dev/mdX /dev/sdc) >> >> > >> >> > Did a resync occur, observable via `cat /proc/mdstat`? >> >> > >> >> > >> >> > >> >> > On Sat, Jun 24, 2017 at 15:21 Hubert Reevez <hubereevez@xxxxxxxxx> >> >> > wrote: >> >> >> >> >> >> Hi, >> >> >> >> >> >> I'm trying to add a larger spare in replacement to a smaller one. >> >> >> I'm >> >> >> really stuck here.... ;( >> >> >> >> >> >> Here is what I did : --fail /dev/sdc then --remove /dev/sdc >> >> >> >> >> >> Added the new one (which is also sdc now) can't assemble the new one >> >> >> ! >> >> >> >> >> >> If I try to assemble here is what it comes : >> >> >> --------------------------------------------------------- >> >> >> root@Zetta:~# mdadm --assemble /dev/md0 --verbose /dev/sdc >> >> >> mdadm: looking for devices for /dev/md0 >> >> >> mdadm: /dev/sdc is busy - skipping >> >> >> ------------------------------------------------------- >> >> >> >> >> >> >> >> >> If I tried to stop the array and assemble, here is what it comes : >> >> >> >> >> >> -------------------------------- >> >> >> >> >> >> root@Zetta:~# mdadm --assemble /dev/md0 --verbose /dev/sdc >> >> >> mdadm: looking for devices for /dev/md0 >> >> >> mdadm: /dev/sdc is identified as a member of /dev/md0, slot -1. >> >> >> mdadm: no uptodate device for slot 0 of /dev/md0 >> >> >> mdadm: no uptodate device for slot 1 of /dev/md0 >> >> >> mdadm: no uptodate device for slot 2 of /dev/md0 >> >> >> mdadm: no uptodate device for slot 3 of /dev/md0 >> >> >> mdadm: no uptodate device for slot 4 of /dev/md0 >> >> >> mdadm: no uptodate device for slot 5 of /dev/md0 >> >> >> mdadm: added /dev/sdc to /dev/md0 as -1 >> >> >> mdadm: /dev/md0 assembled from 0 drives and 1 spare - not enough to >> >> >> start the array >> >> >> >> >> >> ------------------------------------------------- >> >> >> >> >> >> Thanks for your help !!!!! >> >> >> >> >> >> >> >> >> Here some infos (I had a sdg larger than 1,5 to) >> >> >> >> >> >> ------------------------------------ >> >> >> root@Zetta:~# blockdev --getsize64 /dev/sd[abcefg] 1500301910016 >> >> >> 2000398934016 2000398934016 1500301910016 1500301910016 >> >> >> 2000398934016 >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------------------------------- >> >> >> root@Zetta:~# cat /proc/mdstat >> >> >> Personalities : [raid6] [raid5] [raid4] >> >> >> md0 : inactive sdf[0] sdc[7](S) sdg[6] sdb[4] sde[3] sda[2] >> >> >> 10255693264 blocks super 1.2 >> >> >> >> >> >> unused devices: <none> >> >> >> >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------------------------------- >> >> >> >> >> >> root@Zetta:~# mdadm --detail /dev/md0 >> >> >> /dev/md0: >> >> >> Version : 1.2 >> >> >> Creation Time : Sat Aug 31 01:10:06 2013 >> >> >> Raid Level : raid6 >> >> >> Used Dev Size : 1465137152 (1397.26 GiB 1500.30 GB) >> >> >> Raid Devices : 6 >> >> >> Total Devices : 6 >> >> >> Persistence : Superblock is persistent >> >> >> >> >> >> Update Time : Fri Jun 23 15:43:33 2017 >> >> >> State : active, degraded, Not Started >> >> >> Active Devices : 5 >> >> >> Working Devices : 6 >> >> >> Failed Devices : 0 >> >> >> Spare Devices : 1 >> >> >> >> >> >> Layout : left-symmetric >> >> >> Chunk Size : 512K >> >> >> >> >> >> Name : zetta:0 >> >> >> UUID : 96b0e7b7:83aa203f:1545031b:43caaa85 >> >> >> Events : 54841 >> >> >> >> >> >> Number Major Minor RaidDevice State >> >> >> 0 8 80 0 active sync /dev/sdf >> >> >> 1 0 0 1 removed >> >> >> 2 8 0 2 active sync /dev/sda >> >> >> 3 8 64 3 active sync /dev/sde >> >> >> 4 8 16 4 active sync /dev/sdb >> >> >> 6 8 96 5 active sync /dev/sdg >> >> >> >> >> >> 7 8 32 - spare /dev/sdc >> >> >> >> >> >> >> >> >> >> >> >> -------------------------------------------------------------------------------------------------------------------- >> >> >> >> >> >> root@Zetta:~# fdisk -l >> >> >> >> >> >> Disk /dev/sda: 1500.3 GB, 1500301910016 bytes >> >> >> 255 heads, 63 sectors/track, 182401 cylinders, total 2930277168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 512 bytes >> >> >> I/O size (minimum/optimal): 512 bytes / 512 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sda doesn't contain a valid partition table >> >> >> >> >> >> Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes >> >> >> 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 4096 bytes >> >> >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sdb doesn't contain a valid partition table >> >> >> >> >> >> Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes >> >> >> 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 4096 bytes >> >> >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sdc doesn't contain a valid partition table >> >> >> >> >> >> Disk /dev/sdd: 100.0 GB, 100030242816 bytes >> >> >> 255 heads, 63 sectors/track, 12161 cylinders, total 195371568 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 512 bytes >> >> >> I/O size (minimum/optimal): 512 bytes / 512 bytes >> >> >> Disk identifier: 0x0008101c >> >> >> >> >> >> Device Boot Start End Blocks Id System >> >> >> /dev/sdd1 * 2048 187367423 93682688 83 Linux >> >> >> /dev/sdd2 187369470 195371007 4000769 5 Extended >> >> >> /dev/sdd5 187369472 195371007 4000768 82 Linux swap / >> >> >> Solaris >> >> >> >> >> >> Disk /dev/sde: 1500.3 GB, 1500301910016 bytes >> >> >> 255 heads, 63 sectors/track, 182401 cylinders, total 2930277168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 4096 bytes >> >> >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sde doesn't contain a valid partition table >> >> >> >> >> >> Disk /dev/sdf: 1500.3 GB, 1500301910016 bytes >> >> >> 255 heads, 63 sectors/track, 182401 cylinders, total 2930277168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 4096 bytes >> >> >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sdf doesn't contain a valid partition table >> >> >> >> >> >> Disk /dev/sdg: 2000.4 GB, 2000398934016 bytes >> >> >> 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 >> >> >> sectors >> >> >> Units = sectors of 1 * 512 = 512 bytes >> >> >> Sector size (logical/physical): 512 bytes / 4096 bytes >> >> >> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >> >> >> Disk identifier: 0x00000000 >> >> >> >> >> >> Disk /dev/sdg doesn't contain a valid partition table >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------------------------ >> >> >> >> >> >> root@Zetta:~# blkid >> >> >> /dev/sda: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="70983681-b5c2-9f70-1801-948b1b7c97d1" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> /dev/sdb: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="66843575-1a9c-30a6-8172-29f3ded468dc" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> /dev/sde: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="ee7eab8f-dc90-e3be-146d-a4e09d104418" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> /dev/sdf: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="b2460066-00b1-5070-cfe3-7ac67aae96c1" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> /dev/sdc: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="06bd9fd3-7b1a-b0e0-b9f0-029882f39624" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> /dev/sdd1: UUID="b364f189-c9af-4774-92ba-a49307966cf7" TYPE="ext4" >> >> >> /dev/sdd5: UUID="c78b6a64-1caa-4290-bc1a-eebe67731ca5" TYPE="swap" >> >> >> /dev/sdg: UUID="96b0e7b7-83aa-203f-1545-031b43caaa85" >> >> >> UUID_SUB="440f9a88-1d42-020c-ba4d-d303afb76c7c" LABEL="zetta:0" >> >> >> TYPE="linux_raid_member" >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------------------------------------------ >> >> >> mdadm -E /dev/sd[abcefg] >> >> >> >> >> >> https://pastebin.com/zzz3jFvP >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------------------------------------------------- >> >> >> >> >> >> mdadm.conf : >> >> >> DEVICE partitions CREATE owner=root group=disk mode=0660 auto=yes >> >> >> HOMEHOST <system> ARRAY /dev/md/zetta:0 metadata=1.2 name=zetta:0 >> >> >> UUID=96b0e7b7:83aa203f:1545031b:43caaa85 >> >> >> -- >> >> >> 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 >> >> > >> >> > -- >> >> > ------------------------------ >> >> > Jeff Johnson >> >> > Co-Founder >> >> > Aeon Computing >> >> > >> >> > jeff.johnson@xxxxxxxxxxxxxxxxx >> >> > www.aeoncomputing.com >> >> > t: 858-412-3810 x1001 f: 858-412-3845 >> >> > m: 619-204-9061 >> >> > >> >> > 4170 Morena Boulevard, Suite D - San Diego, CA 92117 >> >> > >> >> > High-Performance Computing / Lustre Filesystems / Scale-out Storage >> > >> > -- >> > ------------------------------ >> > Jeff Johnson >> > Co-Founder >> > Aeon Computing >> > >> > jeff.johnson@xxxxxxxxxxxxxxxxx >> > www.aeoncomputing.com >> > t: 858-412-3810 x1001 f: 858-412-3845 >> > m: 619-204-9061 >> > >> > 4170 Morena Boulevard, Suite D - San Diego, CA 92117 >> > >> > High-Performance Computing / Lustre Filesystems / Scale-out Storage > > -- > ------------------------------ > Jeff Johnson > Co-Founder > Aeon Computing > > jeff.johnson@xxxxxxxxxxxxxxxxx > www.aeoncomputing.com > t: 858-412-3810 x1001 f: 858-412-3845 > m: 619-204-9061 > > 4170 Morena Boulevard, Suite D - San Diego, CA 92117 > > High-Performance Computing / Lustre Filesystems / Scale-out Storage -- 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