Topic: resize array

[wjp79]

Ok, raised a bug.

http://bugs.contribs.org/show_bug.cgi?id=6602

Tnx for you effort.

WJ

[MSmith]

Poof, "closed, notabug."  I don't know what would fix the OP's issue, but one approach going forward would be to back up to USB drive, then reformat & restore.  And just for safety, perhaps do the fresh install on only one of the 500GB drives until you're sure the restore went OK, then wipe the other 500GB drive and use the built-in SME tool to add it to the array.

[CharlieBrady]

the resizing has failed.. I don't know why

It looks to me that there is substantial unpartitioned space on the drives. /dev/sda2 and /dev/sdb2 are < 10k cylinders, but there are more than 60k cylinders to the drives. LVM is using all of the RAID, but the RAID is not using all of the drives.

[Stefano]

It looks to me that there is substantial unpartitioned space on the drives. /dev/sda2 and /dev/sdb2 are < 10k cylinders, but there are more than 60k cylinders to the drives. LVM is using all of the RAID, but the RAID is not using all of the drives.

this is the problem

with the

Code: [Select]

mdadm --grow /dev/md2 --size=max

raid should grow and use all the disk space.. I did use that command many times without any problem

[CharlieBrady]

with the

Code: [Select]

mdadm --grow /dev/md2 --size=max

raid should grow and use all the disk space.. I did use that command many times without any problem

I think that will only work if /dev/sda2 and /dev/sdb2 span the remainder of the disk. I don't think that mdadm will change the partition sizes and repartition the disk. It will only 'grow' to use unused space within the partitions.

[Stefano]

I think that will only work if /dev/sda2 and /dev/sdb2 span the remainder of the disk. I don't think that mdadm will change the partition sizes and repartition the disk. It will only 'grow' to use unused space within the partitions.

Charlie.. I've used many (dozen) times this procedure.. and it simply worked flawlessy for me.. without touching partitions..

[CharlieBrady]

Charlie.. I've used many (dozen) times this procedure.. and it simply worked flawlessy for me.. without touching partitions..

Interesting. Would be good to see the fdisk output before and after "mdadm --grow" is run.

[Stefano]

I'll create a VM this night to test and post here the result

[slords]

The issue is the instructions on the wiki were not followed.  If the instructions were followed then the partitions on the drives would be different (the second partition would take up the entire drive).

Please explain exactly how you replaced the 80G drives with the 500G drives.

[johnp]

Here's a link to the instructions Shad referred to http://wiki.contribs.org/Raid

[p-jones]

Here's a link to the instructions Shad referred to http://wiki.contribs.org/Raid

Wonder what specific part of this Document Shad is reffering to ? It is a long document.....

The instructions wjp79 is using are also contained in this link/document and like Stefano, I have used those instructions a number of times and they have "just worked"

[slords]

I'm referring to the very first part of "Upgrading the Hard Drive Size".  If you don't do the first part of the procedure correct then nothing else beyond that matters.  All of the instructions given here so far assume that was done correctly when it wasn't.