Skip to main content

Resized RAID Array

RAID is Redundant Array of Independent Disks. It is a technology in virtualization which allows several devices to be grouped together and used as if there is only one device. If I have two or more hard drives I can group them together in a RAID and my computer will treat it as one device. RAID's purpose is for data redundancy and performance. I use software RAID in Linux. The other kind is hardware RAID in which you depend on chipsets to manage the RAID.

I have a RAID5 array consisting of 1x1TB and 1x2TB. I bought a new 2TB hard drive and I want to add it to the RAID.   To make matters complicated I only made a 1TB partition out of the 2TB hard drive when I created the original RAID. I want to use the entire 2TB capacity of the hard drive and then add the newly bought 2TB hard drive to the RAID.

I have been using the RAID array since April 2016, so there's data written on this array now.

old RAID array:
/dev/sdb1    -    935G (2TB)   -    raid5    -    /dev/md0
/dev/sdc1    -    931G (1TB)   -    raid5    -    /dev/md0

Can this be accomplished without data loss?


--
Donato Roque@ubuntu-16-04
mobile:63-9185721710
I'm on twitter, facebook and this is my blog.
Consider using my PGP keys for privacy.

Comments

Post a Comment

Popular posts from this blog

Password Issues On Ubuntu Login

I found myself unable to enter my login credentials when prompted to do so in Ubuntu. I think I might have changed it then forget about it. I've been running the current session for more days than I should have. I forget. So what's the solution to my problem. How do I get in to my system now? It involved getting into the grub menu somehow. I am uncertain as to how to do that exactly in your system. So there's a couple of ways to do it (finger's crossed). When booting at system start, use the esc key or the shift key. The first one worked for me. The timing is key. Wait until the bios banner shows then hit the esc key once. I am using Ubuntu 22.04.4 here. I have a current version of grub. The grub menu will give you options and the one you want is: root. Yes you want root privileges to set the root password. It should give you a terminal access where you can issue commands. Type: #mount -rw -o -s remount / ==> this command mounts the filesyste...
Post a Comment
Read more

New ZFS Pool And the New 4TB Hard Drive

I am using the new pool for my videos and music. Downloading them using my torrent client, transmission. The old pool is raidz2 and now I am using a raidz1 only. But and a big but I gained space of up to 4.5 TB.
Post a Comment
Read more

2024 So Far

I have a feeling of moving earth or walking off my itchiness. The growing fat in my belly tells me I am failing on many occasions to give in to this urge. My eyes are blurred by morning glory. I remember my father having the same ritual in the morning. After his weak stroke, he couldn't speak much, just a grunt but he would demonstrate with hand how he liked to wash his face. The weather wasn't helping. It's been raining cats and dogs the past week. The province of Rizal was soaked and spilled volumes of water into the bay and Laguna lake. Our Caimito tree was cut to no more than 4 feet from the ground. It was towering above the corrugated sheet metal of our roof. Now it lay horizontal on the yard. I calculated it could be made into a whole table and chairs set by a talented carpenter artist. I showed Lino the two big pieces of trunk that could only be moved if cut by a power saw in place. The road widening project in San Mateo was in the middle stage. One side of the road ...
Post a Comment
Read more