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pvmove unable to move extents to multiple smaller pvs

linux-lvm Scott Serr 2 participants 5 messages Sep 29, 2004 – Sep 30, 2004

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Scott Serr

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#0 lore raw

I'm trying to use pvmove to shuffle things around. I have a pv with 22375 extents which I would like to remove from the system. I've added two (2) pvs with 11194 extents each. I get an error message:

Insufficient contiguous allocatable extents (11194) for logical volume pvmove0: 22375 required Allocation for temporary pvmove LV

Now before you say, don't make it contiguous... It seems that it isn't already.

# lvchange --contiguous n /dev/data_vg/data_lv
Allocation policy of logical volume "data_lv" is already not contiguous

Is this normal? Do I really need all that contiguous space on 1 pv?

Thanks in advance,
Scott Serr

author
#1 lore raw

Some more information that may be of use:
kernel 2.4.26 (vanilla) on gentoo on a P4 HT and SMP is enabled lvm 2.00.08

It seems that everytime I do a "pvmove" it would be hard to always go to a contiguous pv the same size or bigger. This is why I wonder if I'm doing something wrong.

Thanks again [to anyone out there],
Scott Serr

Quoted 20 lines · Scott Serr

I'm trying to use pvmove to shuffle things around. I have a pv with 22375 extents which I would like to remove from the system. I've added two (2) pvs with 11194 extents each. I get an error message:

Insufficient contiguous allocatable extents (11194) for logical volume pvmove0: 22375 required Allocation for temporary pvmove LV

Now before you say, don't make it contiguous... It seems that it isn't already.

# lvchange --contiguous n /dev/data_vg/data_lv
Allocation policy of logical volume "data_lv" is already not contiguous

Is this normal? Do I really need all that contiguous space on 1 pv?

Thanks in advance,
Scott Serr

_______________________________________________
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
Quoted 8 lines · Scott Serr

Some more information that may be of use:
kernel 2.4.26 (vanilla) on gentoo on a P4 HT and SMP is enabled lvm 2.00.08

It seems that everytime I do a "pvmove" it would be hard to always go to a contiguous pv the same size or bigger. This is why I wonder if I'm doing something wrong.

Scott, I think this was just discussed on the list last week. What you need to do is pvmove in smaller chunks. pvmove only sees the first available block of PE's.

So

pvmove /dev/diskdev:1-11194

Or something like that. Check the list archives from 2 or 3 days ago.

Quoted 36 lines

Thanks again [to anyone out there],
Scott Serr

Quoted 16 lines · Scott Serr

I'm trying to use pvmove to shuffle things around. I have a pv with 22375 extents which I would like to remove from the system. I've added two (2) pvs with 11194 extents each. I get an error message:

Insufficient contiguous allocatable extents (11194) for logical volume
pvmove0: 22375 required
Allocation for temporary pvmove LV

Now before you say, don't make it contiguous... It seems that it isn't already.

# lvchange --contiguous n /dev/data_vg/data_lv
Allocation policy of logical volume "data_lv" is already not contiguous

Is this normal? Do I really need all that contiguous space on 1 pv?

Quoted 8 lines

Thanks in advance,
Scott Serr

_______________________________________________
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/

author
#3 lore raw

Oh man, thanks. I did many many searches, but not on the list specifically.

Thanks, I'll read and try it!
Scott

Quoted 69 lines · Clint Byrum
Quoted 8 lines · Scott Serr

Some more information that may be of use:
kernel 2.4.26 (vanilla) on gentoo on a P4 HT and SMP is enabled lvm 2.00.08

It seems that everytime I do a "pvmove" it would be hard to always go to a contiguous pv the same size or bigger. This is why I wonder if I'm doing something wrong.

Scott, I think this was just discussed on the list last week. What you need to do is pvmove in smaller chunks. pvmove only sees the first available block of PE's.

So

pvmove /dev/diskdev:1-11194

Or something like that. Check the list archives from 2 or 3 days ago.

Quoted 29 lines

Thanks again [to anyone out there],
Scott Serr

Quoted 12 lines · Scott Serr

I'm trying to use pvmove to shuffle things around. I have a pv with 22375 extents which I would like to remove from the system. I've added two (2) pvs with 11194 extents each. I get an error message:

Insufficient contiguous allocatable extents (11194) for logical volume pvmove0: 22375 required Allocation for temporary pvmove LV

Now before you say, don't make it contiguous... It seems that it isn't already.

# lvchange --contiguous n /dev/data_vg/data_lv
Allocation policy of logical volume "data_lv" is already not contiguous

Is this normal? Do I really need all that contiguous space on 1 pv?

Quoted 10 lines

Thanks in advance,
Scott Serr

_______________________________________________
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 8 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/

author
#4 lore raw
In reply to Clint Byrum

For anyone out there with this problem... if pvmove doesn't seem to understand specified PE ranges on the source PV, then upgrade to a newer LVM2. Gentoo's current stable .08 does not have this, but the source 2.00.25 sure does.

Quoted 69 lines · Clint Byrum
Quoted 8 lines · Scott Serr

Some more information that may be of use:
kernel 2.4.26 (vanilla) on gentoo on a P4 HT and SMP is enabled lvm 2.00.08

It seems that everytime I do a "pvmove" it would be hard to always go to a contiguous pv the same size or bigger. This is why I wonder if I'm doing something wrong.

Scott, I think this was just discussed on the list last week. What you need to do is pvmove in smaller chunks. pvmove only sees the first available block of PE's.

So

pvmove /dev/diskdev:1-11194

Or something like that. Check the list archives from 2 or 3 days ago.

Quoted 29 lines

Thanks again [to anyone out there],
Scott Serr

Quoted 12 lines · Scott Serr

I'm trying to use pvmove to shuffle things around. I have a pv with 22375 extents which I would like to remove from the system. I've added two (2) pvs with 11194 extents each. I get an error message:

Insufficient contiguous allocatable extents (11194) for logical volume pvmove0: 22375 required Allocation for temporary pvmove LV

Now before you say, don't make it contiguous... It seems that it isn't already.

# lvchange --contiguous n /dev/data_vg/data_lv
Allocation policy of logical volume "data_lv" is already not contiguous

Is this normal? Do I really need all that contiguous space on 1 pv?

Quoted 10 lines

Thanks in advance,
Scott Serr

_______________________________________________
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 8 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/