{"id":755,"date":"2012-09-09T23:59:25","date_gmt":"2012-09-10T05:59:25","guid":{"rendered":"http:\/\/blog.supportpro.com\/?p=755"},"modified":"2019-10-30T05:43:37","modified_gmt":"2019-10-30T11:43:37","slug":"how-to-replace-a-faulty-drive-in-a-software-raid-under-linux","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/how-to-replace-a-faulty-drive-in-a-software-raid-under-linux\/","title":{"rendered":"How to replace a faulty drive in a Software RAID under Linux?"},"content":{"rendered":"
First we need to identify failed RAID Arrays. we can gather information from the following command’s output.<\/div>\n
# cat \/proc\/mdstat<\/div>\n
Removing the failed partition and disk<\/div>\n
# mdadm –manage \/dev\/md0 –remove \/dev\/sdb1<\/div>\n
=> Power down<\/div>\n
# shutdown -h now<\/div>\n
Then replace the drive and power up<\/div>\n
In order to use the new drive we should have to create the same partition table structure that was on the old One.<\/div>\n
# sfdisk -d \/dev\/sda | sfdisk \/dev\/sdb<\/div>\n
After that we can add the partitions to the RAID Array.<\/div>\n
# mdadm –manage \/dev\/md0 –add \/dev\/sdb1<\/div>\n
Now, we can check the status of the partitions by issuing<\/div>\n
# cat \/proc\/mdstat<\/div>\n

First we need to identify failed RAID Arrays. we can gather information from the following command’s output.<\/p>\n

# cat \/proc\/mdstat<\/p><\/blockquote>\n

Removing the failed partition and disk<\/p>\n

# mdadm –manage \/dev\/md0 –remove \/dev\/sdb1<\/p><\/blockquote>\n

Power down<\/p>\n

# shutdown -h now<\/p><\/blockquote>\n

Then replace the drive and power up<\/p>\n

In order to use the new drive we should have to create the same partition table structure that was on the old One.<\/p>\n

# sfdisk -d \/dev\/sda | sfdisk \/dev\/sdb<\/p><\/blockquote>\n

After that we can add the partitions to the RAID Array.<\/p>\n

# mdadm –manage \/dev\/md0 –add \/dev\/sdb1<\/p><\/blockquote>\n

Now, we can check the status of the partitions by issuing<\/p>\n

# cat \/proc\/mdstat<\/p><\/blockquote>\n

If you require help, contact SupportPRO Server Admin<\/a><\/p>\n

\"Server<\/a><\/span>