Dear Chris, James, Valeri and all,
Sorry to have not responded as I'm still on struggling with the recovery
with no success.
I've been trying to set up a new system with the exact same scenario (4
2TB hard drives and remove the 3rd one afterwards). I still cannot recover.
We did have a
On Sun, March 1, 2015 9:07 pm, Khemara Lin wrote:
Dear Chris, James, Valeri and all,
Sorry to have not responded as I'm still on struggling with the recovery
with no success.
I've been trying to set up a new system with the exact same scenario (4
2TB hard drives and remove the 3rd one
On Sun, Mar 1, 2015 at 8:07 PM, Khemara Lin lin...@wicam.com.kh wrote:
Dear Chris, James, Valeri and all,
Sorry to have not responded as I'm still on struggling with the recovery
with no success.
I've been trying to set up a new system with the exact same scenario (4 2TB
hard drives and
On Sun, Mar 1, 2015 at 9:03 PM, Valeri Galtsev
galt...@kicp.uchicago.edu wrote:
There may be a bit expensive route. Depending on how valuable the data
are, you may think of contacting professional recovery services. They
usually take about a Month, they are expensive. Decent ones will be on
On Sat, Feb 28, 2015 at 4:29 PM, Valeri Galtsev
galt...@kicp.uchicago.edu wrote:
You are implying that firmware of hardware RAID cards is somehow buggier
than software of software RAID plus Linux kernel (sorry if I
misinterpreted your point).
Drives, and hardware RAID cards are subject to
On Sat, February 28, 2015 4:22 pm, Chris Murphy wrote:
On Sat, Feb 28, 2015 at 1:26 PM, Valeri Galtsev
galt...@kicp.uchicago.edu wrote:
Indeed. That is why: no LVMs in my server room. Even no software RAID.
Software RAID relies on the system itself to fulfill its RAID function;
what if
- Original Message -
| On Fri, 27 Feb 2015 19:24:57 -0800
| John R Pierce pie...@hogranch.com wrote:
| On 2/27/2015 4:52 PM, Khemara Lyn wrote:
|
| What is the right way to recover the remaining PVs left?
|
| take a filing cabinet packed full of 10s of 1000s of files of 100s of
|
On Sat, Feb 28, 2015 at 1:26 PM, Valeri Galtsev
galt...@kicp.uchicago.edu wrote:
Indeed. That is why: no LVMs in my server room. Even no software RAID.
Software RAID relies on the system itself to fulfill its RAID function;
what if kernel panics before software RAID does its job? Hardware RAID
On Sat, Feb 28, 2015 at 4:28 PM, James A. Peltier jpelt...@sfu.ca wrote:
People who understand how to use the system do not suffer these problems.
LVM adds a bit of complexity for a bit of extra benefits. You can't blame
LVM for user error. Not having monitoring in place or backups is a
On Fri, February 27, 2015 10:00 pm, Marko Vojinovic wrote:
On Fri, 27 Feb 2015 19:24:57 -0800
John R Pierce pie...@hogranch.com wrote:
On 2/27/2015 4:52 PM, Khemara Lyn wrote:
What is the right way to recover the remaining PVs left?
take a filing cabinet packed full of 10s of 1000s of
- Original Message -
| On Sat, Feb 28, 2015 at 4:28 PM, James A. Peltier jpelt...@sfu.ca wrote:
|
| People who understand how to use the system do not suffer these problems.
| LVM adds a bit of complexity for a bit of extra benefits. You can't
| blame LVM for user error. Not having
On Sat, Feb 28, 2015 at 5:59 PM, James A. Peltier jpelt...@sfu.ca wrote:
There is no difference between a single disk system and a multi-disk system
in terms of being able to dynamically resize volumes that reside on a volume
group. Having the ability to resize a volume to be either larger
OK It's extremely rude to cross post the same question across multiple
lists like this at exactly the same time, and without at least showing
the cross posting. I just replied to the one on Fedora users before I
saw this post. This sort of thing wastes people's time. Pick one list
based on the
https://lists.fedoraproject.org/pipermail/users/2015-February/458923.html
I don't see how the VG metadata is restored with any of the commands
suggested thus far. I think that's vgcfgrestore. Otherwise I'd think
that LVM has no idea how to do the LE to PE mapping.
In any case, this sounds like
On Fri, Feb 27, 2015 at 8:24 PM, John R Pierce pie...@hogranch.com wrote:
On 2/27/2015 4:52 PM, Khemara Lyn wrote:
I understand; I tried it in the hope that, I could activate the LV again
with a new PV replacing the damaged one. But still I could not activate
it.
What is the right way to
OK so ext4 this time, with new disk images. I notice at mkfs.ext4 that
each virtual disk goes from 2MB to 130MB-150MB each. That's a lot of
fs metadata, and it's fairly evenly distributed across each drive.
Copied 3.5GB to the volume. Unmount. Poweroff. Killed 3rd of 4. Boot.
Mounts fine. No
On 2/27/2015 4:52 PM, Khemara Lyn wrote:
I understand; I tried it in the hope that, I could activate the LV again
with a new PV replacing the damaged one. But still I could not activate
it.
What is the right way to recover the remaining PVs left?
take a filing cabinet packed full of 10s of
On Fri, Feb 27, 2015 at 9:00 PM, Marko Vojinovic vvma...@gmail.com wrote:
And this is why I don't like LVM to begin with. If one of the drives
dies, you're screwed not only for the data on that drive, but even for
data on remaining healthy drives.
It has its uses, just like RAID0 has uses. But
On Fri, 27 Feb 2015 19:24:57 -0800
John R Pierce pie...@hogranch.com wrote:
On 2/27/2015 4:52 PM, Khemara Lyn wrote:
What is the right way to recover the remaining PVs left?
take a filing cabinet packed full of 10s of 1000s of files of 100s of
pages each, with the index cards
And then Btrfs (no LVM).
mkfs.btrfs -d single /dev/sd[bcde]
mount /dev/sdb /mnt/bigbtr
cp -a /usr /mnt/bigbtr
Unmount. Poweroff. Kill 3rd of 4 drives. Poweron.
mount -o degraded,ro /dev/sdb /mnt/bigbtr ## degraded,ro is required
or mount fails
cp -a /mnt/bigbtr/usr/ /mnt/btrfs## copy to a
On 2/27/2015 8:00 PM, Marko Vojinovic wrote:
And this is why I don't like LVM to begin with. If one of the drives
dies, you're screwed not only for the data on that drive, but even for
data on remaining healthy drives.
with classic LVM, you were supposed to use raid for your PV's. The new
On Fri, Feb 27, 2015 at 9:44 PM, John R Pierce pie...@hogranch.com wrote:
On 2/27/2015 8:00 PM, Marko Vojinovic wrote:
And this is why I don't like LVM to begin with. If one of the drives
dies, you're screwed not only for the data on that drive, but even for
data on remaining healthy drives.
Ok, sorry about that.
On Sat, February 28, 2015 9:13 am, Chris Murphy wrote:
OK It's extremely rude to cross post the same question across multiple
lists like this at exactly the same time, and without at least showing the
cross posting. I just replied to the one on Fedora users before I saw
Dear All,
I am in desperate need for LVM data rescue for my server.
I have an VG call vg_hosting consisting of 4 PVs each contained in a
separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1).
And this LV: lv_home was created to use all the space of the 4 PVs.
Right now, the third
On 2/27/2015 4:25 PM, Khemara Lyn wrote:
Right now, the third hard drive is damaged; and therefore the third PV
(/dev/sdc1) cannot be accessed anymore. I would like to recover whatever
left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1).
your data is spread across all 4 drives, and
- Original Message -
| Dear All,
|
| I am in desperate need for LVM data rescue for my server.
| I have an VG call vg_hosting consisting of 4 PVs each contained in a
| separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1).
| And this LV: lv_home was created to use all the
Thank you, John for your quick reply.
That is what I hope. But how to do it? I cannot even activate the LV with
the remaining PVs.
Thanks,
Khem
On Sat, February 28, 2015 7:34 am, John R Pierce wrote:
On 2/27/2015 4:25 PM, Khemara Lyn wrote:
Right now, the third hard drive is damaged; and
Dear James,
Thank you for being quick to help.
Yes, I could see all of them:
# vgs
# lvs
# pvs
Regards,
Khem
On Sat, February 28, 2015 7:37 am, James A. Peltier wrote:
- Original Message -
| Dear All,
|
| I am in desperate need for LVM data rescue for my server.
| I have an VG
On 2/27/2015 4:37 PM, James A. Peltier wrote:
| I was able to create a new PV and restore the VG Config/meta data:
|
| # pvcreate --restorefile ... --uuid ... /dev/sdc1
|
oh, that step means you won't be able to recover ANY of the data that
was formerly on that PV.
--
john r pierce
Dear John,
I understand; I tried it in the hope that, I could activate the LV again
with a new PV replacing the damaged one. But still I could not activate
it.
What is the right way to recover the remaining PVs left?
Regards,
Khem
On Sat, February 28, 2015 7:42 am, John R Pierce wrote:
On
Hello James and All,
For your information, here's the listing looks like:
[root@localhost ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda1 vg_hosting lvm2 a-- 1.82t0
/dev/sdb2 vg_hosting lvm2 a-- 1.82t0
/dev/sdc1 vg_hosting lvm2 a-- 1.82t0
/dev/sdd1
On Sat, 2015-02-28 at 07:25 +0700, Khemara Lyn wrote:
I have tried with the following:
1. Removing the broken PV:
# vgreduce --force vg_hosting /dev/sdc1
Physical volume /dev/sdc1 still in use
Next time, try vgreduce --removemissing VG first.
In my experience, any lvm command using
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