Information for administrators

How to expand the storage on fallopius

• You are the admin, right?
• Login as root and shutdown the machine
• Install the physical drives (currently, use only 1TB drives!). Turn on the machine.
• Enter the RAID bios by pressing TAB
• Enter the rsf menu and choose to expand the array (this operation took around 33 hours for 4Tb -> 6Tb expansion!!!)
• Enter the vsf menu and choose to expand also the logical array (this operation took only around 1 hour for 4Tb -> 6Tb expansion)
• Boot the system
• umount /home/; umount /storage/volume0; umount /storage/volume1
• Execute parted
• Select /dev/sdb. From now on we assume that in the system there exist, so far, logical partitions /dev/sdb1, /dev/sdb2, ..., /dev/sdb(n-1)
• Create a new partition, start at [old_size] (size before the RAID expansion), end at [new_size] (size after the RAID expansion). At the end of the process, a new partition is created and henceforth denoted as /dev/sdbn
• pvcreate /dev/sdbn
• vgextend users /dev/sdbn
• lvextend /dev/mapper/users-bigvol /dev/sdbn
• mount /storage/volume1
• xfs_growfs /storage/volume1
• mount /storage/volume0; mount /home/;
• DONE!!!!