I want to expand my storage what solution should I use?.
I have start with 4 disk raid 5 (2.7 TB) and used LVM and format with ext3
That work fine
I then extend the raid with one disk (3.6 TB)
(It took some time to let the raid controller to expand the disks)
That work fine
Then I started the Expert Partitions.
Under “Hard disks” I read
/dev/sdb 3.64 TB Adaptec
Under Volume Management I read
/dev/VG1 2.73 TB
/dev VG1 / /LG1 2.273
I can’t figure out how to create the new logical drive.
I have tried to “Add Volume Group” under â"Volume Management"
Then I get the message
“Error
There are not enough suitable unused devices to create a volume group”
I’m when I tried to “add” disk (I think is was wrong) Hard Disks
/dev/sdb
Then I get the message
“Error
The disk is in use and cannot be modified”
I can’t figure out how to extend it
Should I use some other solution?
The disks are 1TB and the controller is ADAPTEC 51245
You don’t want to add a volume group. You have already added the physical volume to your group, so if the RAID is transparent to the system (controller based instead of software/kernel based) then the machine does not know that there are more disks in the machine. It sees the one.
What you need to do is an lvmdiskscan and then see if you can expand the vg to fill the space. Also, do a vgdisplay to see how many free extents there are. Also, depending on the size of the extents you chose, you may be limited to a certain size logical volume, but you can create more logical volumes.
Please post the output of lsscsi, lvmdiskscan and vgdisplay -v, along with the output of vgs and lvs
Thank you
Here I have the outputs
What do I do next?
linux-mcbt:~ # lvmdiskscan
/dev/dm-0 2.73 TB]
/dev/sda1 2.01 GB]
/dev/root 230.88 GB]
/dev/sdb 3.64 TB] LVM physical volume
1 disk
2 partitions
1 LVM physical volume whole disk
0 LVM physical volumes
linux-mcbt:~ #
linux-mcbt:~ # vgdisplay
— Volume group —
VG Name VG1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 2.73 TB
PE Size 64.00 MB
Total PE 44687
Alloc PE / Size 44687 / 2.73 TB
Free PE / Size 0 / 0
VG UUID 5LTrgA-YMGI-DbtE-VluM-c9vk-kvj7-jlIVPQ
linux-mcbt:~ #
linux-mcbt:~ # lsscsi
[0:0:0:0] disk ATA WDC WD2500AAKS-0 01.0 /dev/sda
[6:0:0:0] disk Adaptec D1 V1.0 /dev/sdb
[6:1:0:0] disk ST31000340AS SD1A -
[6:1:1:0] disk ST31000340AS SD1A -
[6:1:2:0] disk ST31000340AS SD1A -
[6:1:3:0] disk ST31000340AS SD1A -
[6:1:4:0] disk ST31000340AS SD1A -
[7:0:0:0] cd/dvd HL-DT-ST DVD-ROM GDR8161B 0037 /dev/sr0
linux-mcbt:~ #
linux-mcbt:~ # vgdisplay -v
Finding all volume groups
Finding volume group “VG1”
— Volume group —
VG Name VG1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 2.73 TB
PE Size 64.00 MB
Total PE 44687
Alloc PE / Size 44687 / 2.73 TB
Free PE / Size 0 / 0
VG UUID 5LTrgA-YMGI-DbtE-VluM-c9vk-kvj7-jlIVPQ
— Logical volume —
LV Name /dev/VG1/LG1
VG Name VG1
LV UUID jnxUJS-BUMZ-4eE1-jpEk-9wol-Ow5d-7PzaYO
LV Write Access read/write
LV Status available
open 0
LV Size 2.73 TB
Current LE 44687
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
— Physical volumes —
PV Name /dev/sdb
PV UUID 8rqW0a-0T8d-dvkT-WFjs-nhnu-Ax5h-lof1E0
PV Status allocatable
Total PE / Free PE 44687 / 0
linux-mcbt:~ #
linux-mcbt:~ # vgs
VG #PV #LV #SN Attr VSize VFree
VG1 1 1 0 wz–n- 2.73T 0
linux-mcbt:~ #
linux-mcbt:~ #
linux-mcbt:~ # lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
LG1 VG1 -wi-a- 2.73T
linux-mcbt:~ #