Since I always keep forgetting, here a reminder for myself how to add a new VD and extend the LVM. I usually keep forgetting the LSI commands. In this case, I had to extend an LVM to get some extra space, this means adding new disks, creating a new VD on the LSI controller and then extending the LVM volume group by this new VD.
After adding the new disk, check drive information to get the enclosure and slot.
storcli /c0 /eall /sall show
You should see the new disks in status “Ugood”, so you need to create a new VD from the new disks. In my case disk from slot 12 and 13 where the new disks so I created a new RAID1
storcli /c0 add vd type=r1 drives=8:12-13
After this step, you need to start the init of the new vd. First look at which vd is your new one:
storcli /c0 /vall show
the last one should be the new one and it will be the one with consistant: no
Virtual Drives :
==============
---------------------------------------------------------------
DG/VD TYPE State Access Consist Cache Cac sCC Size Name
---------------------------------------------------------------
0/0 RAID1 Optl RW Yes RWTD - ON 1.818 TB System
1/1 RAID6 Optl RW Yes RWTD - ON 7.275 TB Data
2/2 RAID5 Optl RW Yes RWTD - ON 5.457 TB Data2
3/3 RAID1 Optl RW Yes RWTD - ON 7.276 TB
4/4 RAID1 Optl RW No RWTD - ON 9.094 TB
---------------------------------------------------------------
Now Initialize the VD
storcli /c0 /vx start init full
/vx needs to be replaced by the virtual drive you created (in my case that would be /v4)
and check progress with
storcli /c0 /vx show init
Now you can start partitioning the drive and add it to the lvm.
A big warning here! Don’t do this before initializing the disks! If for some reason you created the partition before the init - yes you can do that - then you end up with an inconsistent array, you will fiddle around to make the array consistent and at some point remember that you forgot the init, you trigger the init which will remove partition and your LVM will look like this:
root@backup:~# pvs
/dev/sdd: read failed after 0 of 4096 at 0: Input/output error
/dev/sdd: read failed after 0 of 4096 at 8001020690432: Input/output error
/dev/sdd: read failed after 0 of 4096 at 8001020747776: Input/output error
/dev/sdd: read failed after 0 of 4096 at 4096: Input/output error
/dev/sdd1: read failed after 0 of 512 at 8001019576320: Input/output error
/dev/sdd1: read failed after 0 of 512 at 8001019678720: Input/output error
/dev/sdd1: read failed after 0 of 512 at 0: Input/output error
/dev/sdd1: read failed after 0 of 512 at 4096: Input/output error
/dev/sdd1: read failed after 0 of 2048 at 0: Input/output error
Couldn't find device with uuid GLTroE-rzfi-sx58-3ff1-ZDcM-IOYK-WXTcYW.
PV VG Fmt Attr PSize PFree
/dev/sda4 vg0 lvm2 a-- 1.82t 1.51t
/dev/sdb1 vg0 lvm2 a-- 7.28t 0
/dev/sdc1 vg0 lvm2 a-- 5.46t 0
unknown device vg0 lvm2 a-m 7.28t 7.28t
So after the init was triggered go ahead and add the VD to the LVM
pvcreate /dev/sdd1
vgextend vg0 /dev/sdd1