T
T
tristan
Guest
It depends of type of storage you are using.Hi,
I need some advise, how to resize harddisk ?
Regards,
Tristan
I have completed a Proxmox Host installation.
How can I reduce the size of /dev/sda2 (LVM), so that I can have a 8GB Swap partition on this drive???
Code:
# df -l
dev/mapper/pve-root ... /
tmpfs ... /lib/ini/rw
udev ... /dev
tmpfs ... /dev/shm
/dev/mapper/pve-data ... /var/lib/vz
/dev/sda1 ... /boot
Code:
#fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 * 1 66 524288 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 66 60801 487859712 8e Linux LVM
Disk /dev/dm-0: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/dm-1: 103.0 GB, 103079215104 bytes
255 heads, 63 sectors/track, 12532 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/dm-2: 387.9 GB, 387901816832 bytes
255 heads, 63 sectors/track, 47159 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000How can I reduce the size of /dev/sda2 (LVM), so that I can have a 8GB Swap partition on this drive???
I never liked easy. So let's do it.
I just want to reduce the LVM to add a Primary/Extended partition that I can use as a 16GB Swap outside of the existing LVM (additional memory for system is on its way).
My reason: I have found that system performance is improved when SWAP is in its own Primary/Logical partition outside of an LVM. and I want to control SWAP sizing outside of the LVM using old Linux tools.
Code:
# [B]lvdisplay[/B]
--- Logical volume ---
LV Name /dev/pve/swap
VG Name pve
LV UUID fSULxh-H69J-3iu6-6fGv-zyUf-vux4-KUMMp9
LV Write Access read/write
LV Status available
# open 1
LV Size 4.00 GB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:0
--- Logical volume ---
LV Name /dev/pve/root
VG Name pve
LV UUID 64Zfbj-BOdy-Icqm-93wW-Hv6V-eChf-c3ROyL
LV Write Access read/write
LV Status available
# open 1
LV Size 96.00 GB
Current LE 24576
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:1
--- Logical volume ---
LV Name /dev/pve/data
VG Name pve
LV UUID jSTxnG-kpLx-eyac-SWwy-hgoY-Wy9N-lPgf0l
LV Write Access read/write
LV Status available
# open 1
LV Size 361.26 GB
Current LE 92483
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:2
# [B]vgdisplay[/B]
--- Volume group ---
VG Name pve
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 465.26 GB
PE Size 4.00 MB
Total PE 119106
Alloc PE / Size 118083 / 461.26 GB
Free PE / Size 1023 / 4.00 GB
VG UUID EPCWMl-xc1n-3xUB-V5TD-YQ1l-6pZY-4NZ464
# [B]pvdisplay -m[/B]
--- Physical volume ---
PV Name /dev/sda2
VG Name pve
PV Size 465.26 GB / not usable 1.50 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 119106
Free PE 1023
Allocated PE 118083
PV UUID JogU1D-cKPA-dQNL-2EwU-YTZT-4kV2-iGkHk6
--- Physical Segments ---
Physical extent 0 to 1023:
Logical volume /dev/pve/swap
Logical extents 0 to 1023
Physical extent 1024 to 25599:
Logical volume /dev/pve/root
Logical extents 0 to 24575
Physical extent 25600 to 118082:
Logical volume /dev/pve/data
Logical extents 0 to 92482
Physical extent 118083 to 119105:
FREEMy reason: I have found that system performance is improved when SWAP is in its own Primary/Logical partition outside of an LVM. and I want to control SWAP sizing outside of the LVM using old Linux tools.
Last edited:
vgdisplay
pvdisplay -m
PS:
What the reason to increase swap?
What the reason to use it outsite LVM?
I'm not sure this is really so. As well reducing physical volume will be really harder then logical volumes inside the volume group especially if you don't have additional storage for keeping data temporarily. Moreover, if the system doesn't have enough memory and it tries to use swap - this is already not good strategy i think.
I warned you but anyway I'll try to help you with your "resizings"
Show me:
Code:
vgdisplay
pvdisplay -mAll of the volume group information is in the earlier post. I edited in for you.
Look in code section
Look in code section
Last edited: