Ich wollte eine weitere Platte meinem RAID6 hinzufügen. Jedoch kommt das ding nicht forwärts:
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Every 5.0s: cat /proc/mdstat Thu Mar 24 13:36:18 2016
Personalities : [raid1] [raid6] [raid5] [raid4]
md2 : active raid6 sdb1[4] sdc1[0] sdf1[3] sde1[2] sdd1[1]
1953519616 blocks super 0.91 level 6, 1024k chunk, algorithm 2 [5/5] [UUUUU]
[>....................] reshape = 0.0% (0/976759808) finish=3692355565.8min speed=0K/sec
md1 : active raid1 sdg2[0] sdh2[1]
94660608 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sdg1[0] sdh1[1]
487104 blocks super 1.2 [2/2] [UU]
unused devices: <none>
Was hab ich gemacht:
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echo 50000 > /proc/sys/dev/raid/speed_limit_min
echo 50000 > /proc/sys/dev/raid/speed_limit_max
echo 32768 > /sys/block/md2/md/stripe_cache_size
sfdisk -d /dev/sdc | sfdisk /dev/sdb
mdadm --add /dev/md2 /dev/sdb1
mdadm --grow --raid-devices=5 /dev/md2
Meine Config:
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root@SRVLO001:/home/lod# cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
# DEVICE partitions containers /dev/sdb
DEVICE /dev/hd*[0-9] /dev/sd*[0-9]
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# instruct the monitoring daemon where to send mail alerts
MAILADDR root
# definitions of existing MD arrays
ARRAY /dev/md/0 level=raid1 num-devices=2 metadata=1.2 name=SRVLO001:0 UUID=4f0259f6:e416eeb7:53d8b535:93fa0c8b
ARRAY /dev/md/1 level=raid1 num-devices=2 metadata=1.2 name=SRVLO001:1 UUID=f55974d8:03b2504a:f4d33838:f2334f6f
ARRAY /dev/md2 level=raid6 num-devices=4 metadata=0.90 UUID=a3037800:f2c6d7c0:e612f9f7:185d199e
# This configuration was auto-generated on Thu, 10 Mar 2016 20:08:58 +0100 by mkconf
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root@SRVLO001:/home/lod# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
└─sda1 8:1 0 931.5G 0 part
sdb 8:16 0 931.5G 0 disk
└─sdb1 8:17 0 931.5G 0 part
└─md2 9:2 0 1.8T 0 raid6
└─vg--raid_dev02-raid_data 253:2 0 1.8T 0 lvm /mnt/raid_data
sdc 8:32 0 931.5G 0 disk
└─sdc1 8:33 0 931.5G 0 part
└─md2 9:2 0 1.8T 0 raid6
└─vg--raid_dev02-raid_data 253:2 0 1.8T 0 lvm /mnt/raid_data
sdd 8:48 0 931.5G 0 disk
└─sdd1 8:49 0 931.5G 0 part
└─md2 9:2 0 1.8T 0 raid6
└─vg--raid_dev02-raid_data 253:2 0 1.8T 0 lvm /mnt/raid_data
sde 8:64 0 931.5G 0 disk
└─sde1 8:65 0 931.5G 0 part
└─md2 9:2 0 1.8T 0 raid6
└─vg--raid_dev02-raid_data 253:2 0 1.8T 0 lvm /mnt/raid_data
sdf 8:80 0 931.5G 0 disk
└─sdf1 8:81 0 931.5G 0 part
└─md2 9:2 0 1.8T 0 raid6
└─vg--raid_dev02-raid_data 253:2 0 1.8T 0 lvm /mnt/raid_data
sdg 8:96 0 93.2G 0 disk
├─sdg1 8:97 0 476M 0 part
│ └─md0 9:0 0 475.7M 0 raid1 /boot
└─sdg2 8:98 0 90.3G 0 part
└─md1 9:1 0 90.3G 0 raid1
├─vg--system-lv----system--root 253:0 0 23.3G 0 lvm /
├─vg--system-lv----system--swap 253:1 0 59.6G 0 lvm [SWAP]
└─vg--system-lv----system--home 253:3 0 4.7G 0 lvm /home
sdh 8:112 0 93.2G 0 disk
├─sdh1 8:113 0 476M 0 part
│ └─md0 9:0 0 475.7M 0 raid1 /boot
└─sdh2 8:114 0 90.3G 0 part
└─md1 9:1 0 90.3G 0 raid1
├─vg--system-lv----system--root 253:0 0 23.3G 0 lvm /
├─vg--system-lv----system--swap 253:1 0 59.6G 0 lvm [SWAP]
└─vg--system-lv----system--home 253:3 0 4.7G 0 lvm /home
Gruss