[ale] Topic ideas for November meeting

[Paul Cartwright]

I have never used RAID at home, nor LVM.. still on ext4.. this is my 
laptop..
Device     Boot     Start       End  Sectors  Size Id Type
/dev/sda1  *           63  71682029 71681967 34.2G  7 HPFS/NTFS/exFAT
/dev/sda2        71682048 100980735 29298688   14G 83 Linux
/dev/sda3       100980736 105076735  4096000    2G 82 Linux swap / Solaris
/dev/sda4       105078782 192425983 87347202 41.7G  5 Extended
/dev/sda5       105078784 192425983 87347200 41.7G 83 Linux


on my desktop I have dual disks, and I just rsynced "/" and /home to 
partitions on the other drive..
maybe a nice talk on RAID/LVM...


On 11/03/2015 08:17 AM, Lightner, Jeff wrote:
> I totally disagree.   Partitioning is only "simple" in initial setup.   When you want to add space to a partition that has stuff beyond it you have to resize everything.
>
> With LVM:
> a)  You can resize individual LVs without adjusting other LVs (assuming you have free space).
> b)  You can add new PVs to extend the size of the VG without having to redo anything.
>
> With RAID levels beyond 0 you don't lose data due to one failed disk.
>
> Of course both RAID and LVM allow you to use partitions as members but you can also do whole disks.