Hi Team,

I want to know why lsblk showing me LVM pool i haven't create any pool, but i noticed after installing veritas infoscale on RHEL 7.3, i'm getting below screen with rhel-pool00_tmeta and rhel-pool00_tdata.

i removed all installed application from rhel 7.3 but still i am able to see below output.


[root@localhost log]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 16.4G 0 part
├─rhel-swap 253:0 0 2G 0 lvm [SWAP]
├─rhel-pool00_tmeta 253:1 0 12M 0 lvm
│ └─rhel-pool00-tpool 253:3 0 12G 0 lvm
│ ├─rhel-root 253:4 0 12G 0 lvm /
│ └─rhel-pool00 253:5 0 12G 0 lvm
└─rhel-pool00_tdata 253:2 0 12G 0 lvm
└─rhel-pool00-tpool 253:3 0 12G 0 lvm
├─rhel-root 253:4 0 12G 0 lvm /
└─rhel-pool00 253:5 0 12G 0 lvm
sr0 11:0 1 3.6G 0 rom


Regards,
Pravin Goud
RHCE Certified

How about LVM commands? lvs, lvdisplay and so on.

I suppose that the LVM structures created by Infoscale (if that is the origin of your pool) remain even after you remove Infoscale. An application that removes all user data when getting uninstalled would not survive in the market.

For better readability, format code as code (see below for instructions).

Hi berndbausch,


Please Find below output of my infoscale server



[root@RHEL_INFOSCALE ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 500G 0 disk
├─sda1 8:1 0 953M 0 part /boot
└─sda2 8:2 0 300.1G 0 part
├─rhel-pool00_tmeta 253:0 0 72M 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
├─rhel-pool00_tdata 253:1 0 279.4G 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
└─rhel-swap 253:4 0 4.7G 0 lvm [SWAP]
sr0 11:0 1 1024M 0 rom
[root@RHEL_INFOSCALE ~]#


[root@RHEL_INFOSCALE ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
pool00 rhel twi-aotz-- 279.40g 4.81 2.63
root rhel Vwi-aotz-- 279.40g pool00 4.81
swap rhel -wi-ao---- 4.66g
[root@RHEL_INFOSCALE ~]#


[root@RHEL_INFOSCALE ~]# lvdisplay
--- Logical volume ---
LV Name pool00
VG Name rhel
LV UUID 6L2Xhs-gAg2-H1w4-LP7I-2fHD-Dan6-CRnOS9
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:04 +0530
LV Pool metadata pool00_tmeta
LV Pool data pool00_tdata
LV Status available
# open 2
LV Size 279.40 GiB
Allocated pool data 4.81%
Allocated metadata 2.63%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2

--- Logical volume ---
LV Path /dev/rhel/root
LV Name root
VG Name rhel
LV UUID rEg8GX-Xx6q-Cdsh-rAtD-Fi3s-Z2eA-i90ilD
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:05 +0530
LV Pool name pool00
LV Status available
# open 1
LV Size 279.40 GiB
Mapped size 4.81%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:3

--- Logical volume ---
LV Path /dev/rhel/swap
LV Name swap
VG Name rhel
LV UUID YSPuKe-5fUk-etk3-ybAg-jxUR-Ejig-XFkhF0
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:34 +0530
LV Status available
# open 2
LV Size 4.66 GiB
Current LE 1192
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:4

[root@RHEL_INFOSCALE ~]#

Regards,
Pravin Goud
RHCE Certrified

I don't understand why someone running RHEL who is "RHCE Certified" wouldn't contact RedHat for support...

That said, the question is not at all clear. What is the specific problem?

1 members found this post helpful.

Hi scasey,

Let me tell you one thing i am not familiar with storage pool,

this is my UAT server where i was testing veritas infoscale which is used for HA and Storage foundation,there is no issue but i want to know why LVM pool created over there without configuration when i'm going to remove this pool its removed completely after reboot its again appearing in lsblk output. for more info please check my lsblk output and post.

[root@RHEL_INFOSCALE ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 500G 0 disk
├─sda1 8:1 0 953M 0 part /boot
└─sda2 8:2 0 300.1G 0 part
├─rhel-pool00_tmeta 253:0 0 72M 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
├─rhel-pool00_tdata 253:1 0 279.4G 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
└─rhel-swap 253:4 0 4.7G 0 lvm [SWAP]
sr0 11:0 1 1024M 0 rom
[root@RHEL_INFOSCALE ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
pool00 rhel twi-aotz-- 279.40g 4.81 2.63
root rhel Vwi-aotz-- 279.40g pool00 4.81
swap rhel -wi-ao---- 4.66g
[root@RHEL_INFOSCALE ~]# lvdisplay
--- Logical volume ---
LV Name pool00
VG Name rhel
LV UUID 6L2Xhs-gAg2-H1w4-LP7I-2fHD-Dan6-CRnOS9
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:04 +0530
LV Pool metadata pool00_tmeta
LV Pool data pool00_tdata
LV Status available
# open 2
LV Size 279.40 GiB
Allocated pool data 4.81%
Allocated metadata 2.63%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2

--- Logical volume ---
LV Path /dev/rhel/root
LV Name root
VG Name rhel
LV UUID rEg8GX-Xx6q-Cdsh-rAtD-Fi3s-Z2eA-i90ilD
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:05 +0530
LV Pool name pool00
LV Status available
# open 1
LV Size 279.40 GiB
Mapped size 4.81%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:3

--- Logical volume ---
LV Path /dev/rhel/swap
LV Name swap
VG Name rhel
LV UUID YSPuKe-5fUk-etk3-ybAg-jxUR-Ejig-XFkhF0
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:34 +0530
LV Status available
# open 2
LV Size 4.66 GiB
Current LE 1192
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:4

[root@RHEL_INFOSCALE ~]#




Regards,
Pravin Goud
RHCE Certified

Can you edit your post and add code tags? See the link "how to format code" in my signature.

This is unreadable, at least for my tired eyes:

Hi Please find below



[root@RHEL_INFOSCALE ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 500G 0 disk
├─sda1 8:1 0 953M 0 part /boot
└─sda2 8:2 0 300.1G 0 part
├─rhel-pool00_tmeta 253:0 0 72M 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
├─rhel-pool00_tdata 253:1 0 279.4G 0 lvm
│ └─rhel-pool00-tpool 253:2 0 279.4G 0 lvm
│ ├─rhel-root 253:3 0 279.4G 0 lvm /
│ └─rhel-pool00 253:5 0 279.4G 0 lvm
└─rhel-swap 253:4 0 4.7G 0 lvm [SWAP]
sr0 11:0 1 1024M 0 rom


[root@RHEL_INFOSCALE ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
pool00 rhel twi-aotz-- 279.40g 4.81 2.63
root rhel Vwi-aotz-- 279.40g pool00 4.81
swap rhel -wi-ao---- 4.66g



[root@RHEL_INFOSCALE ~]# lvdisplay
--- Logical volume ---
LV Name pool00
VG Name rhel
LV UUID 6L2Xhs-gAg2-H1w4-LP7I-2fHD-Dan6-CRnOS9
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:04 +0530
LV Pool metadata pool00_tmeta
LV Pool data pool00_tdata
LV Status available
# open 2
LV Size 279.40 GiB
Allocated pool data 4.81%
Allocated metadata 2.63%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2

--- Logical volume ---
LV Path /dev/rhel/root
LV Name root
VG Name rhel
LV UUID rEg8GX-Xx6q-Cdsh-rAtD-Fi3s-Z2eA-i90ilD
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:05 +0530
LV Pool name pool00
LV Status available
# open 1
LV Size 279.40 GiB
Mapped size 4.81%
Current LE 71526
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:3

--- Logical volume ---
LV Path /dev/rhel/swap
LV Name swap
VG Name rhel
LV UUID YSPuKe-5fUk-etk3-ybAg-jxUR-Ejig-XFkhF0
LV Write Access read/write
LV Creation host, time localhost.localdomain, 2018-12-05 11:46:34 +0530
LV Status available
# open 2
LV Size 4.66 GiB
Current LE 1192
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:4

[root@RHEL_INFOSCALE ~]#

Please stop with the huge red text; you need to post things in CODE tags, to make them readable, as you were explicitly told. And scasey has a very good point: why would someone who claims to be 'RHCE Certified', using Red Hat Enterprise, need help with such things? Further, you're using Veritas products with RHEL...both are commercial, PAY FOR products, and as such, you can contact either Veritas or Red Hat support...why haven't you done so???

Please don't say "this is UAT server, we have no support since we're just testing"...that doesn't fly. If you're testing products for purchase, companies will fall over themselves to make sure things are working for the test. Getting support is FAR easier for pre-purchase testing than it is later in production, typically.
So there is no issue/problem, and you want to know why things are working like they are? Great...have you then read the documentation, which explains all of this??? Or, again, contacted Veritas support who can explain it to you??