yjh123
asked on
RH7.1 raidhotadd doesn't work...
I am having difficulty resynchronizing disks after booting the system without one disk(sdb)... Looks like the mirror broke when I booted.
I set up RAID 1 with two SCSI disks(sda & sdb) and this is the strucutre:
--------------------------
df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/md0 4032000 933016 2894164 25% /
/dev/md1 60475924 107636 57296268 1% /home
/dev/md3 3510208 368 3331528 1% /tmp
/dev/md2 2015952 20584 1892960 2% /var
But when I do "raidhotadd", I get an error message:
raidhotadd /dev/md0 /dev/sdb1
/dev/md0: can not hot-add disk: invalid argument.
After this, if I do not specify the second drive, it doesn't get any error, but it doesn't do the job either.
raidhotadd /dev/md0 /dev/sdb
--------------------------
cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 sdb[2] sda1[1]
4096448 blocks [2/1] [_U]
[=>...................] recovery = 6.5% (267620/4096448) finish=5.7min speed=11150K/sec
md1 : active raid1 sda5[1]
61440448 blocks [2/1] [_U]
md3 : active raid1 sda6[1]
3566272 blocks [2/1] [_U]
md2 : active raid1 sda7[1]
2048192 blocks [2/1] [_U]
unused devices: <none>
--------------------------
After this, if I do this I get error message:
raidhotadd /dev/md1 /dev/sdb
/dev/md1: can not hot-add disk: invalid argument.
Can anyone help? Thanks.
Some important information:
--------------------------
dmesg -c
trying to hot-add sdb1 to md0 ...
md: could not lock sdb1, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb5 to md1 ...
md: could not lock sdb5, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb5 to md2 ...
md: could not lock sdb5, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb6 to md3 ...
md: could not lock sdb6, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb1 to md0 ...
md: could not lock sdb1, zero-size? Marking faulty.
md: error, md_import_device() returned -22
--------------------------
cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 sda1[1]
4096448 blocks [2/1] [_U]
md1 : active raid1 sda5[1]
61440448 blocks [2/1] [_U]
md3 : active raid1 sda6[1]
3566272 blocks [2/1] [_U]
md2 : active raid1 sda7[1]
2048192 blocks [2/1] [_U]
unused devices: <none>
--------------------------
df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/md0 4032000 933016 2894164 25% /
/dev/md1 60475924 107636 57296268 1% /home
/dev/md3 3510208 368 3331528 1% /tmp
/dev/md2 2015952 20552 1892992 2% /var
--------------------------
cat /etc/raidtab
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda1
raid-disk 0
device /dev/sdb1
raid-disk 1
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda5
raid-disk 0
device /dev/sdb5
raid-disk 1
raiddev /dev/md2
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda7
raid-disk 0
device /dev/sdb7
raid-disk 1
raiddev /dev/md3
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda6
raid-disk 0
device /dev/sdb6
raid-disk 1
I set up RAID 1 with two SCSI disks(sda & sdb) and this is the strucutre:
--------------------------
df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/md0 4032000 933016 2894164 25% /
/dev/md1 60475924 107636 57296268 1% /home
/dev/md3 3510208 368 3331528 1% /tmp
/dev/md2 2015952 20584 1892960 2% /var
But when I do "raidhotadd", I get an error message:
raidhotadd /dev/md0 /dev/sdb1
/dev/md0: can not hot-add disk: invalid argument.
After this, if I do not specify the second drive, it doesn't get any error, but it doesn't do the job either.
raidhotadd /dev/md0 /dev/sdb
--------------------------
cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 sdb[2] sda1[1]
4096448 blocks [2/1] [_U]
[=>...................] recovery = 6.5% (267620/4096448) finish=5.7min speed=11150K/sec
md1 : active raid1 sda5[1]
61440448 blocks [2/1] [_U]
md3 : active raid1 sda6[1]
3566272 blocks [2/1] [_U]
md2 : active raid1 sda7[1]
2048192 blocks [2/1] [_U]
unused devices: <none>
--------------------------
After this, if I do this I get error message:
raidhotadd /dev/md1 /dev/sdb
/dev/md1: can not hot-add disk: invalid argument.
Can anyone help? Thanks.
Some important information:
--------------------------
dmesg -c
trying to hot-add sdb1 to md0 ...
md: could not lock sdb1, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb5 to md1 ...
md: could not lock sdb5, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb5 to md2 ...
md: could not lock sdb5, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb6 to md3 ...
md: could not lock sdb6, zero-size? Marking faulty.
md: error, md_import_device() returned -22
trying to hot-add sdb1 to md0 ...
md: could not lock sdb1, zero-size? Marking faulty.
md: error, md_import_device() returned -22
--------------------------
cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 sda1[1]
4096448 blocks [2/1] [_U]
md1 : active raid1 sda5[1]
61440448 blocks [2/1] [_U]
md3 : active raid1 sda6[1]
3566272 blocks [2/1] [_U]
md2 : active raid1 sda7[1]
2048192 blocks [2/1] [_U]
unused devices: <none>
--------------------------
df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/md0 4032000 933016 2894164 25% /
/dev/md1 60475924 107636 57296268 1% /home
/dev/md3 3510208 368 3331528 1% /tmp
/dev/md2 2015952 20552 1892992 2% /var
--------------------------
cat /etc/raidtab
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda1
raid-disk 0
device /dev/sdb1
raid-disk 1
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda5
raid-disk 0
device /dev/sdb5
raid-disk 1
raiddev /dev/md2
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda7
raid-disk 0
device /dev/sdb7
raid-disk 1
raiddev /dev/md3
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/sda6
raid-disk 0
device /dev/sdb6
raid-disk 1
iharding
post "fdisk -l /dev/????" for all disks
As far as I know, you must have either raid5 or raid10 setup in order to use hot swapping. raid 1 is normal mirroring...
yjh123---> You have TEN open questions, I will update them all with these comments. Please check the Guidelines and Member Agreement available from the HELP DESK link on the left about the rules for this site. I will monitor them all for updates and closures.
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Moondancer
Community Support Moderator @ Experts Exchange
If you need help from Community Support, let us know. If no response by the end of next week, I will handle them all and advise Administration.
Your cooperation and understanding is not only appreciated, but necessary.
Moondancer
Community Support Moderator @ Experts Exchange
yjh123 logged in after this request was posted but chose not to update or finalize it, so I ask for your input as to the fair way to conclude and close this (award/PAQ or Delete).
Thanks,
Moondancer
Community Support Moderator @ Experts Exchange
Thanks,
Moondancer
Community Support Moderator @ Experts Exchange
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