Skip to contentSkip to conversation

How do you create large numbers of LVs? (In the 1000s) Is it even possible?

linux-lvm Nathaniel Stahl 3 participants 8 messages Jul 28, 2005

lore
Share & tools
lore
#0 lore raw

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering scheme (20 bits for minor, 12 bits for major).

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors greater than 256, but LV creation fails with the error "VG VolGroup01 metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

Is there a patch that allows this limit to be broken? Should I be using a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

-Nate Stahl

#1 lore raw
Quoted 12 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering scheme (20 bits for minor, 12 bits for major).

Quoted 6 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors greater than 256, but LV creation fails with the error "VG VolGroup01 metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 14 lines

Is there a patch that allows this limit to be broken? Should I be using a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#2 lore raw

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 46 lines · Ming Zhang
Quoted 12 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering scheme (20 bits for minor, 12 bits for major).

Quoted 6 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors greater than 256, but LV creation fails with the error "VG VolGroup01 metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 7 lines

Is there a patch that allows this limit to be broken? Should I be using a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#3 lore raw

i think this is strange that this guy can at least create 1500 lv but fail to activate them all.

here what i found is i even can not create ~300 lv.

ming

Quoted 61 lines · Jonathan E Brassow

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 50 lines · Ming Zhang
Quoted 14 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering
scheme (20 bits for minor, 12 bits for major).

Quoted 7 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors
greater than 256, but LV creation fails with the error "VG VolGroup01 metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 8 lines

Is there a patch that allows this limit to be broken? Should I be using
a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#4 lore raw

yeah... it could be a memory issue which is causing the difference in active lvs.

It could be the fact that he starts with _inactive_ lvs that allows him to create so many to start.

To see if you are experiencing the same bug, you could 'vgchange -an <vol_name>' and then try to create a bunch of lvs... Then, once created, try to activate them.

brassow

Quoted 72 lines · Ming Zhang

i think this is strange that this guy can at least create 1500 lv but fail to activate them all.

here what i found is i even can not create ~300 lv.

ming

Quoted 61 lines · Jonathan E Brassow

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 50 lines · Ming Zhang
Quoted 14 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering
scheme (20 bits for minor, 12 bits for major).

Quoted 7 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors
greater than 256, but LV creation fails with the error "VG VolGroup01 metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 8 lines

Is there a patch that allows this limit to be broken? Should I be using
a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#5 lore raw

I did vgchange -an vg1

and then still fail

[root@fc3-i386-2 ~]# lvcreate -L12M -ntv282 vg1
VG vg1 metadata writing failed
[root@fc3-i386-2 ~]# lvcreate -vvvvv -L12M -ntv282 vg1
Setting global/locking_type to 1
Setting global/locking_dir to /var/lock/lvm File-based locking enabled.
Getting target version for linear
dm version
dm versions
Getting target version for striped
dm versions
Locking /var/lock/lvm/V_vg1 WB
Finding volume group "vg1"
Opened /dev/sda
/dev/sda: No label detected
Opened /dev/md0
/dev/md0: Failed to read label area
Opened /dev/sda1
/dev/sda1: No label detected
Opened /dev/sda2
/dev/sda2: No label detected
Opened /dev/sda3
/dev/sda3: No label detected
Opened /dev/sdb
/dev/sdb: No label detected
Opened /dev/sdb1
/dev/sdb1: lvm2 label detected
/dev/sdb1: lvm2 label detected
Read vg1 metadata (710) from /dev/sdb1 at 50688 size 65377
Creating logical volume tv282
Allowing allocation on /dev/sdb1 start PE 843 length 180
Archiving volume group "vg1" metadata.
VG vg1 metadata writing failed
Unlocking /var/lock/lvm/V_vg1
Closed /dev/sda
Closed /dev/md0
Closed /dev/sda1
Closed /dev/sda2
Closed /dev/sda3
Closed /dev/sdb
Closed /dev/sdb1

i use this script to create them

#!/bin/bash

# a simple loop to create large # of LV

LIMIT=300
a=1

while [ "$a" -le $LIMIT ]
do
lvcreate -L10M -ntv$a vg1
free
let "a+=1"
done

not ram problem

[root@fc3-i386-2 ~]# free
total used free shared buffers
cached
Mem: 255044 80704 174340 0 17776
47400
-/+ buffers/cache: 15528 239516
Swap: 522104 0 522104

[root@fc3-i386-2 ~]# lvextend --version
LVM version: 2.00.25 (2004-09-29)
Library version: 1.00.19-ioctl (2004-07-03)
Driver version: 4.4.0

shall i try new version?

ming

Quoted 95 lines · Jonathan E Brassow

yeah... it could be a memory issue which is causing the difference in active lvs.

It could be the fact that he starts with _inactive_ lvs that allows him to create so many to start.

To see if you are experiencing the same bug, you could 'vgchange -an <vol_name>' and then try to create a bunch of lvs... Then, once created, try to activate them.

brassow

Quoted 75 lines · Ming Zhang

i think this is strange that this guy can at least create 1500 lv but fail to activate them all.

here what i found is i even can not create ~300 lv.

ming

Quoted 64 lines · Jonathan E Brassow

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 53 lines · Ming Zhang
Quoted 14 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering
scheme (20 bits for minor, 12 bits for major).

Quoted 9 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears
to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors
greater than 256, but LV creation fails with the error "VG VolGroup01
metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 8 lines

Is there a patch that allows this limit to be broken? Should I be using
a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#6 lore raw

I know that a similar bug (158687) has been fixed since your version...
It is a somewhat similar bug, but I think the previously mentioned
applies to you more. Still, it couldn't hurt to update.

brassow

Quoted 185 lines · Ming Zhang

I did vgchange -an vg1

and then still fail

[root@fc3-i386-2 ~]# lvcreate -L12M -ntv282 vg1
VG vg1 metadata writing failed
[root@fc3-i386-2 ~]# lvcreate -vvvvv -L12M -ntv282 vg1
Setting global/locking_type to 1
Setting global/locking_dir to /var/lock/lvm File-based locking enabled.
Getting target version for linear
dm version
dm versions
Getting target version for striped
dm versions
Locking /var/lock/lvm/V_vg1 WB
Finding volume group "vg1"
Opened /dev/sda
/dev/sda: No label detected
Opened /dev/md0
/dev/md0: Failed to read label area
Opened /dev/sda1
/dev/sda1: No label detected
Opened /dev/sda2
/dev/sda2: No label detected
Opened /dev/sda3
/dev/sda3: No label detected
Opened /dev/sdb
/dev/sdb: No label detected
Opened /dev/sdb1
/dev/sdb1: lvm2 label detected
/dev/sdb1: lvm2 label detected
Read vg1 metadata (710) from /dev/sdb1 at 50688 size 65377
Creating logical volume tv282
Allowing allocation on /dev/sdb1 start PE 843 length 180
Archiving volume group "vg1" metadata.
VG vg1 metadata writing failed
Unlocking /var/lock/lvm/V_vg1
Closed /dev/sda
Closed /dev/md0
Closed /dev/sda1
Closed /dev/sda2
Closed /dev/sda3
Closed /dev/sdb
Closed /dev/sdb1

i use this script to create them

#!/bin/bash

# a simple loop to create large # of LV

LIMIT=300
a=1

while [ "$a" -le $LIMIT ]
do
lvcreate -L10M -ntv$a vg1
free
let "a+=1"
done

not ram problem

[root@fc3-i386-2 ~]# free
total used free shared buffers
cached
Mem: 255044 80704 174340 0 17776
47400
-/+ buffers/cache: 15528 239516
Swap: 522104 0 522104

[root@fc3-i386-2 ~]# lvextend --version
LVM version: 2.00.25 (2004-09-29)
Library version: 1.00.19-ioctl (2004-07-03)
Driver version: 4.4.0

shall i try new version?

ming

Quoted 90 lines · Jonathan E Brassow

yeah... it could be a memory issue which is causing the difference in active lvs.

It could be the fact that he starts with _inactive_ lvs that allows him to create so many to start.

To see if you are experiencing the same bug, you could 'vgchange -an <vol_name>' and then try to create a bunch of lvs... Then, once created, try to activate them.

brassow

Quoted 75 lines · Ming Zhang

i think this is strange that this guy can at least create 1500 lv but fail to activate them all.

here what i found is i even can not create ~300 lv.

ming

Quoted 64 lines · Jonathan E Brassow

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 53 lines · Ming Zhang
Quoted 14 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so, though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering
scheme (20 bits for minor, 12 bits for major).

Quoted 9 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears
to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors
greater than 256, but LV creation fails with the error "VG VolGroup01
metadata writing failed" creating the 227th LV. Even with the minor limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 8 lines

Is there a patch that allows this limit to be broken? Should I be using
a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Quoted 5 lines

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#7 lore raw

thx for the information. seem fedora core 3 does not provide update to lvm adn dm stuff. i will compile from scratch and try later.

ming

Quoted 206 lines · Jonathan E Brassow

I know that a similar bug (158687) has been fixed since your version...
It is a somewhat similar bug, but I think the previously mentioned
applies to you more. Still, it couldn't hurt to update.

brassow

Quoted 186 lines · Ming Zhang

I did vgchange -an vg1

and then still fail

[root@fc3-i386-2 ~]# lvcreate -L12M -ntv282 vg1
VG vg1 metadata writing failed
[root@fc3-i386-2 ~]# lvcreate -vvvvv -L12M -ntv282 vg1
Setting global/locking_type to 1
Setting global/locking_dir to /var/lock/lvm File-based locking enabled.
Getting target version for linear
dm version
dm versions
Getting target version for striped
dm versions
Locking /var/lock/lvm/V_vg1 WB
Finding volume group "vg1"
Opened /dev/sda
/dev/sda: No label detected
Opened /dev/md0
/dev/md0: Failed to read label area
Opened /dev/sda1
/dev/sda1: No label detected
Opened /dev/sda2
/dev/sda2: No label detected
Opened /dev/sda3
/dev/sda3: No label detected
Opened /dev/sdb
/dev/sdb: No label detected
Opened /dev/sdb1
/dev/sdb1: lvm2 label detected
/dev/sdb1: lvm2 label detected
Read vg1 metadata (710) from /dev/sdb1 at 50688 size 65377
Creating logical volume tv282
Allowing allocation on /dev/sdb1 start PE 843 length 180
Archiving volume group "vg1" metadata.
VG vg1 metadata writing failed
Unlocking /var/lock/lvm/V_vg1
Closed /dev/sda
Closed /dev/md0
Closed /dev/sda1
Closed /dev/sda2
Closed /dev/sda3
Closed /dev/sdb
Closed /dev/sdb1

i use this script to create them

#!/bin/bash

# a simple loop to create large # of LV

LIMIT=300
a=1

while [ "$a" -le $LIMIT ]
do
lvcreate -L10M -ntv$a vg1
free
let "a+=1"
done

not ram problem

[root@fc3-i386-2 ~]# free
total used free shared buffers
cached
Mem: 255044 80704 174340 0 17776
47400
-/+ buffers/cache: 15528 239516
Swap: 522104 0 522104

[root@fc3-i386-2 ~]# lvextend --version
LVM version: 2.00.25 (2004-09-29)
Library version: 1.00.19-ioctl (2004-07-03)
Driver version: 4.4.0

shall i try new version?

ming

Quoted 97 lines · Jonathan E Brassow

yeah... it could be a memory issue which is causing the difference in active lvs.

It could be the fact that he starts with _inactive_ lvs that allows him
to create so many to start.

To see if you are experiencing the same bug, you could 'vgchange -an <vol_name>' and then try to create a bunch of lvs... Then, once created, try to activate them.

brassow

Quoted 81 lines · Ming Zhang

i think this is strange that this guy can at least create 1500 lv but fail to activate them all.

here what i found is i even can not create ~300 lv.

ming

Quoted 70 lines · Jonathan E Brassow

I think the problem you are seeing is similar to the one found in bugzilla (164198). Would you be willing to add some notes there? It
will give you a place to track the progress...

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164198

brassow

Quoted 58 lines · Ming Zhang
Quoted 17 lines · Nathaniel Stahl

We'd like to be able to create a large number of LVs (potentially numbering in the low thousands). I get failure after LV 226 or so,
though - "VG VolGroup01 metadata writing failed".

RedHat claims this should be possible with LVM2 on the following web
page:

http://www.redhat.com/magazine/009jul05/features/lvm2/

I admit to being a little suprised at the 2^32 max LV claim - I was
figuring 2^20 as the theoretical max given 2.6's 32 bit device numbering
scheme (20 bits for minor, 12 bits for major).

Quoted 10 lines

The LVM2 code, at least version 2.00.25 as distributed in FC3, appears
to have a check that the minor number is strictly less than 256. Removing this check allows for the creation of working LVs using minors
greater than 256, but LV creation fails with the error "VG VolGroup01
metadata writing failed" creating the 227th LV. Even with the minor
limit in place - I can't create more than 226 LVs.

i asked this question before. there is a hard coded limitation in lvm
metadata, so the real number is like this, limited around 2xx. the limitation will be removed in near future. how near? i do not know. :)

Quoted 8 lines

Is there a patch that allows this limit to be broken? Should I be using
a newer version of the tools? If not currently possible, is this something that will be in the near future?

Thanks for any help/advice you can give.

Quoted 7 lines

-Nate Stahl

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Quoted 5 lines

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Quoted 6 lines

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/