Oh yes… I see it
Thank you Filipo
Oh yes… I see it
Thank you Filipo
Oh yes. I’m very happy:
I’ve successfully installing, formating and mounting one new 1Tb drive in my microserver.
It was my first time playing with LVM.
I happen to
-create a new physical volume.
-extend an existing volume group
-create an logical volume with the free lvm space
-create a partition on the new logical volume
The next step will be to install netatalk, afp and avahi.
That’s great, would you like to write down some notes about it?
can you give us some details?
TIA
Sure,
I will make a little “how to”
HOW TO ADD A DISK IN NETHSERVER WITH LVM
In first, I`m strongly recommending to read this LVM Administrator’s Guide:
https://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/
There’s all you need to understand what is LVM and how to play safely with it.
In my Microserver Gen8 I have one 160 GB disk in the bay one. This one was configuring like this: ( disk -l output )
Disque /dev/sda: 160.0 Go, 160041885696 octets
255 têtes, 63 secteurs/piste, 19457 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x0002bf10
Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 * 1 64 512000 83 Linux
La partition 1 ne se termine pas sur une frontière de cylindre.
/dev/sda2 64 19458 155777024 8e Linux LVM
Disque /dev/mapper/vg_microserver-lv_root: 53.7 Go, 53687091200 octets
255 têtes, 63 secteurs/piste, 6527 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x00000000
Disque /dev/mapper/vg_microserver-lv_home: 101.8 Go, 101833506816 octets
255 têtes, 63 secteurs/piste, 12380 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x00000000
Disque /dev/mapper/vg_microserver-lv_swap: 3992 Mo, 3992977408 octets
255 têtes, 63 secteurs/piste, 485 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x00000000
When I went to put one more 1Tb disk in the second bay, I didn`t want to simply add one partition, but wanted to expend the LVM volume to have flexibility of LVM for futures upgrades.
So when I plugged the 1TB drive, I went to connect in SSH to the server and became root.
did a fdisk -l to ensure the this was well seeing, with the output, I saw a /dev/sdb drive.
So I had create the physical volume:
pvcreate /dev/sdb
When done
pvdisplay
To extend the VolumeGroup, I needed the name of this one, so:
vgdisplay
In this case the VG name is vg_microserver.
So, to extend the actual volume group
vgextend vg_microserver /dev/sdb
To be able to use the new disk space in the volume group, I needed to create a new logical volume in the volume group.
In my case, I want to use all the free space, and the logical volume need a name, it will be tmbackup
lvcreate -l 100%FREE -n tmbackup vg_microserver
here the output of the lvdisplay command
--- Logical volume ---
LV Path /dev/vg_microserver/lv_root
LV Name lv_root
VG Name vg_microserver
LV UUID uw6t0l-RpXQ-dHzo-LmNY-wHBY-NpTE-qA6UT7
LV Write Access read/write
LV Creation host, time nethserver, 2015-07-26 20:21:10 -0300
LV Status available
# open 1
LV Size 50,00 GiB
Current LE 12800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/vg_microserver/lv_home
LV Name lv_home
VG Name vg_microserver
LV UUID QBk1ca-fD7E-DbaG-Yk2O-WD15-2biU-dKfjww
LV Write Access read/write
LV Creation host, time nethserver, 2015-07-26 20:21:30 -0300
LV Status available
# open 1
LV Size 94,84 GiB
Current LE 24279
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/vg_microserver/lv_swap
LV Name lv_swap
VG Name vg_microserver
LV UUID 7tAuVa-zzpY-gBnr-nc95-P35Y-gg2f-kSkMfn
LV Write Access read/write
LV Creation host, time nethserver, 2015-07-26 20:22:16 -0300
LV Status available
# open 1
LV Size 3,72 GiB
Current LE 952
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
--- Logical volume ---
LV Path /dev/vg_microserver/lv_tmbackup
LV Name lv_tmbackup
VG Name vg_microserver
LV UUID lyioV1-8q8e-sTDz-mxpv-tBrD-M5Eb-h8WKRR
LV Write Access read/write
LV Creation host, time nethserver, 2015-08-04 21:07:20 -0300
LV Status available
# open 1
LV Size 931,51 GiB
Current LE 238467
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3
When all was done, i need to create the ext4 partition in this new volume:
mkfs.ext4 /dev/vg_microserver/lv_tmbackup
Finally, I mounted the partition in /home/tmbackup
mount -t ext4 /dev/mapper/vg_microserver-lv_tmbackup /home/tmbackup
I adjusted the /etc/fstab to automatically mount the partition at startup
/dev/mapper/vg_microserver-lv_root / ext4 defaults 1 1
UUID=6409d507-3801-4089-b451-4d671026c268 /boot ext4 defaults 1 2
/dev/mapper/vg_microserver-lv_home /home ext4 defaults 1 2
/dev/mapper/vg_microserver-lv_swap swap swap defaults 0 0
/dev/mapper/vg_microserver-lv_tmbackup /home/tmbackup ext4 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
That’s all !
please be aware that NS don’t use /home for user profiles and shared folders…
I’m from old traditional school
In the Nethserver documentation, i didn’t see the information
http://docs.nethserver.org/en/latest/accounts.html
Where are user’s folders?
[root@neth ~]# cd /var/lib/nethserver/
[root@neth nethserver]# ls -la
totale 68
drwxr-xr-x. 17 root root 4096 15 lug 09:32 .
drwxr-xr-x. 38 root root 4096 15 lug 09:32 ..
drwxr-xr-x. 3 root root 4096 18 lug 00:15 backup
drwxr-s---. 2 root adm 4096 17 lug 11:38 db
drwxr-x---. 2 fetchmail fetchmail 4096 10 ago 15:07 fetchmail
drwxr-xr-x. 3 root root 4096 17 lug 2014 ftp
drwxr-xr-x. 12 root root 4096 26 giu 13:21 home
drwxr-xr-x. 3 root root 4096 22 giu 17:14 ibay
drwxrwsr-x. 2 root adm 4096 17 lug 11:32 mail-disclaimers
drwxr-xr-x. 2 root root 4096 17 lug 11:32 netlogon
drwxr-xr-x. 2 root root 4096 15 lug 09:32 print_driver
drwxr-xr-x. 22 root root 4096 15 lug 09:32 profile
drwxr-xr-x. 2 root root 4096 23 mar 11:11 secrets
drwxrwx---. 2 root vmail 4096 28 giu 11:16 sieve-scripts
drwxr-xr-x. 2 root root 4096 18 apr 17:10 sogo-thunderbird
drwx------. 12 vmail vmail 4096 22 giu 17:35 vmail
drwxr-xr-x. 2 root root 4096 17 lug 11:32 winregistry-patches
Me needs are growing ( what a surprise !!! ), and I always want to improve my setup.
At this time, two needs are clearly identify:
These two improvements are for my NethServer instance