Urgently need money? We can help you!

Urgently need money? We can help you! Are you by the current situation in trouble or threatens you in trouble? In this way, we give you the ability to take a new development. As a rich person I feel obliged to assist people who are struggling to give them a chance. Everyone deserved a second

Re: HELP unmountable partition after btrfs balance to RAID0

Thomas Mohr posted on Thu, 06 Dec 2018 12:31:15 +0100 as excerpted: > We wanted to convert a file system to a RAID0 with two partitions. > Unfortunately we had to reboot the server during the balance operation > before it could complete. > > Now following happens: > > A mount attempt of the

HELP unmountable partition after btrfs balance to RAID0

30523392ERROR: failed to repair root items: Operation not permitted Any ideas what is going on or how to recover the file system ? I would greatly appreciate your help !!! best, Thomas uname -a: Linux server2 4.19.5-1-default #1 SMP PREEMPT Tue Nov 27 19:56:09 UTC 2018 (6210279) x86_64

Re: Need help with potential ~45TB dataloss

On Tue, Dec 4, 2018 at 3:09 AM Patrick Dijkgraaf wrote: > > Hi Chris, > > See the output below. Any suggestions based on it? If they're SATA drives, they may not support SCT ERC; and if they're SAS, depending on what controller they're behind, smartctl might need a hint to properly ask the drive

Re: Need help with potential ~45TB dataloss

Hi Chris, See the output below. Any suggestions based on it? Thanks! -- Groet / Cheers, Patrick Dijkgraaf On Mon, 2018-12-03 at 20:16 -0700, Chris Murphy wrote: > Also useful information for autopsy, perhaps not for fixing, is to > know whether the SCT ERC value for every drive is less than

Re: Need help with potential ~45TB dataloss

gt; I have been a happy BTRFS user for quite some time. But now I'm > > > > facing > > > > a potential ~45TB dataloss... :-( > > > > I hope someone can help! > > > > > > > > I have Server A and Server B. Both having a 20-devices BTRFS > >

Re: Need help with potential ~45TB dataloss

Also useful information for autopsy, perhaps not for fixing, is to know whether the SCT ERC value for every drive is less than the kernel's SCSI driver block device command timeout value. It's super important that the drive reports an explicit read failure before the read command is considered

Re: Need help with potential ~45TB dataloss

On 2018/12/3 上午4:30, Andrei Borzenkov wrote: > 02.12.2018 23:14, Patrick Dijkgraaf пишет: >> I have some additional info. >> >> I found the reason the FS got corrupted. It was a single failing drive, >> which caused the entire cabinet (containing 7 drives) to reset. So the >> FS suddenly lost 7

Re: Need help with potential ~45TB dataloss

;> On Sat, 2018-12-01 at 07:57 +0800, Qu Wenruo wrote: >>> On 2018/11/30 下午9:53, Patrick Dijkgraaf wrote: >>>> Hi all, >>>> >>>> I have been a happy BTRFS user for quite some time. But now I'm >>>> facing >>>> a potential ~45T

Re: Need help with potential ~45TB dataloss

53, Patrick Dijkgraaf wrote: >>> Hi all, >>> >>> I have been a happy BTRFS user for quite some time. But now I'm >>> facing >>> a potential ~45TB dataloss... :-( >>> I hope someone can help! >>> >>> I have Server A and Serve

Re: Need help with potential ~45TB dataloss

02.12.2018 23:14, Patrick Dijkgraaf пишет: > I have some additional info. > > I found the reason the FS got corrupted. It was a single failing drive, > which caused the entire cabinet (containing 7 drives) to reset. So the > FS suddenly lost 7 drives. > This remains mystery for me. btrfs is

Re: Need help with potential ~45TB dataloss

1 at 07:57 +0800, Qu Wenruo wrote: > > On 2018/11/30 下午9:53, Patrick Dijkgraaf wrote: > > > Hi all, > > > > > > I have been a happy BTRFS user for quite some time. But now I'm > > > facing > > > a potential ~45TB dataloss... :-( > > > I hop

Re: Need help with potential ~45TB dataloss

ome time. But now I'm > > facing > > a potential ~45TB dataloss... :-( > > I hope someone can help! > > > > I have Server A and Server B. Both having a 20-devices BTRFS RAID6 > > filesystem. Because of known RAID5/6 risks, Server B was a backup > > of > >

Re: Need help with potential ~45TB dataloss

On 2018/11/30 下午9:53, Patrick Dijkgraaf wrote: > Hi all, > > I have been a happy BTRFS user for quite some time. But now I'm facing > a potential ~45TB dataloss... :-( > I hope someone can help! > > I have Server A and Server B. Both having a 20-devices BTRFS RAID6

Need help with potential ~45TB dataloss

Hi all, I have been a happy BTRFS user for quite some time. But now I'm facing a potential ~45TB dataloss... :-( I hope someone can help! I have Server A and Server B. Both having a 20-devices BTRFS RAID6 filesystem. Because of known RAID5/6 risks, Server B was a backup of Server A. After

[PATCH v2 15/20] btrfs-progs: sub list: Update help message of -d option

Explicitly states that -d requires root privileges. Also, update some option handling with regard to -d option. Signed-off-by: Misono Tomohiro --- Documentation/btrfs-subvolume.asciidoc | 3 ++- cmds-subvolume.c | 8 2 files changed, 10 insertions(+), 1

[PATCH v2 14/20] btrfs-progs: sub list: Update help message of -o option

Currently "sub list -o" lists only child subvolumes of the specified path. So, update help message and variable name more appropriately. Signed-off-by: Misono Tomohiro --- Documentation/btrfs-subvolume.asciidoc | 2 +- cmds-subvolume.c | 10 +- 2 files

[PATCH 10/18] btrfs-progs: reorder placement of help declarations for send/receive

From: Jeff Mahoney The usage definitions for send and receive follow the command definitions, which use them. This works because we declare them in commands.h. When we move to using cmd_struct as the entry point, these declarations will be removed, breaking the commands. Since

[PATCH 09/18] btrfs-progs: help: convert ints used as bools to bool

ndle_special_globals(int shift, int argc, char **argv) { - int has_help = 0; - int has_full = 0; + bool has_help = false; + bool has_full = false; int i; for (i = 0; i < shift; i++) { if (strcmp(argv[i], "--help") == 0)

Help

Dear Sir/Madam, I am Sgt Swanson Dennis, I have a good business proposal for you. There are no risks involved and it is easy. Please reply for briefs and procedures. Best regards, Sgt Swanson Dennis -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a

Re: [PATCH 10/20] btrfs-progs: help: convert ints used as bools to bool

t has_help = 0; > - int has_full = 0; > + bool has_help = false; > + bool has_full = false; > int i; > > for (i = 0; i < shift; i++) { > if (strcmp(argv[i], "--help") == 0) > - has_help

[PATCH 11/20] btrfs-progs: reorder placement of help declarations for send/receive

From: Jeff Mahoney The usage definitions for send and receive follow the command definitions, which use them. This works because we declare them in commands.h. When we move to using cmd_struct as the entry point, these declarations will be removed, breaking the commands. Since

[PATCH 10/20] btrfs-progs: help: convert ints used as bools to bool

argc, char **argv) { - int has_help = 0; - int has_full = 0; + bool has_help = false; + bool has_full = false; int i; for (i = 0; i < shift; i++) { if (strcmp(argv[i], "--help") == 0) - has_help = 1; +

RE: Help with leaf parent key incorrect

> -Original Message- > From: Anand Jain [mailto:anand.j...@oracle.com] > Sent: Monday, 26 February 2018 7:27 PM > To: Paul Jones <p...@pauljones.id.au>; linux-btrfs@vger.kernel.org > Subject: Re: Help with leaf parent key incorrect > > > > > Th

Re: Help with leaf parent key incorrect

> There is one io error in the log below, Apparently, that's not a real EIO. We need to fix it. But can't be the root cause we are looking for here. > Feb 24 22:41:59 home kernel: BTRFS: error (device dm-6) in btrfs_run_delayed_refs:3076: errno=-5 IO failure > Feb 24 22:41:59 home

Re: Help with leaf parent key incorrect

On 02/25/2018 06:16 PM, Paul Jones wrote: Hi all, I was running dedupe on my filesystem and something went wrong overnight, by the time I noticed the fs was readonly. Thanks for the report. I have few questions.. Kind of raid profile used here? Dedupe tool that was used? Was the fs

Help with leaf parent key incorrect

Hi all, I was running dedupe on my filesystem and something went wrong overnight, by the time I noticed the fs was readonly. When trying to check it this is what I get: vm-server ~ # btrfs check /dev/mapper/a-backup--a parent transid verify failed on 2371034071040 wanted 62977 found 62893 parent

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Am Fri, 17 Nov 2017 06:51:52 +0300 schrieb Andrei Borzenkov : > 16.11.2017 19:13, Kai Krakow пишет: > ... > > > BTW: From user API perspective, btrfs snapshots do not guarantee > > perfect granular consistent backups. > > Is it documented somewhere? I was relying on

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

16.11.2017 19:13, Kai Krakow пишет: ... > > BTW: From user API perspective, btrfs snapshots do not guarantee > perfect granular consistent backups. Is it documented somewhere? I was relying on crash-consistent write-order-preserving snapshots in NetApp for as long as I remember. And I was sure

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Link 2 slipped away, adding it below... Am Tue, 14 Nov 2017 15:51:57 -0500 schrieb Dave : > On Tue, Nov 14, 2017 at 3:50 AM, Roman Mamedov wrote: > > > > On Mon, 13 Nov 2017 22:39:44 -0500 > > Dave wrote: > > > > > I have my

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Am Tue, 14 Nov 2017 15:51:57 -0500 schrieb Dave : > On Tue, Nov 14, 2017 at 3:50 AM, Roman Mamedov wrote: > > > > On Mon, 13 Nov 2017 22:39:44 -0500 > > Dave wrote: > > > > > I have my live system on one block device and a

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Tue, Nov 14, 2017 at 3:50 AM, Roman Mamedov wrote: > > On Mon, 13 Nov 2017 22:39:44 -0500 > Dave wrote: > > > I have my live system on one block device and a backup snapshot of it > > on another block device. I am keeping them in sync with hourly

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Mon, 13 Nov 2017 22:39:44 -0500 Dave wrote: > I have my live system on one block device and a backup snapshot of it > on another block device. I am keeping them in sync with hourly rsync > transfers. > > Here's how this system works in a little more detail: > > 1. I

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Tue, 14 Nov 2017 10:14:55 +0300 Marat Khalili wrote: > Don't keep snapshots under rsync target, place them under ../snapshots > (if snapper supports this): > Or, specify them in --exclude and avoid using --delete-excluded. Both are good suggestions, in my case each system does

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On 14/11/17 06:39, Dave wrote: My rsync command currently looks like this: rsync -axAHv --inplace --delete-delay --exclude-from="/some/file" "$source_snapshop/" "$backup_location" As I learned from Kai Krakow in this maillist, you should also add --no-whole-file if both sides are local.

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Wed, Nov 1, 2017 at 1:15 AM, Roman Mamedov wrote: > On Wed, 1 Nov 2017 01:00:08 -0400 > Dave wrote: > >> To reconcile those conflicting goals, the only idea I have come up >> with so far is to use btrfs send-receive to perform incremental >> backups

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Am Thu, 2 Nov 2017 23:24:29 -0400 schrieb Dave : > On Thu, Nov 2, 2017 at 4:46 PM, Kai Krakow > wrote: > > Am Wed, 1 Nov 2017 02:51:58 -0400 > > schrieb Dave : > > > [...] > [...] > [...] > >> > >> Thanks for

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Thu, Nov 2, 2017 at 4:46 PM, Kai Krakow wrote: > Am Wed, 1 Nov 2017 02:51:58 -0400 > schrieb Dave : > >> > >> >> To reconcile those conflicting goals, the only idea I have come up >> >> with so far is to use btrfs send-receive to perform

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Am Wed, 1 Nov 2017 02:51:58 -0400 schrieb Dave : > > > >> To reconcile those conflicting goals, the only idea I have come up > >> with so far is to use btrfs send-receive to perform incremental > >> backups > > > > As already said by Romain Mamedov, rsync is viable

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

[ ... ] > The poor performance has existed from the beginning of using > BTRFS + KDE + Firefox (almost 2 years ago), at a point when > very few snapshots had yet been created. A comparison system > running similar hardware as well as KDE + Firefox (and LVM + > EXT4) did not have the performance

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Wed, Nov 1, 2017 at 4:34 AM, Marat Khalili wrote: >> We do experience severe performance problems now, especially with >> Firefox. Part of my experiment is to reduce the number of snapshots on >> the live volumes, hence this question. > > Just for statistics, how many snapshots

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On 01/11/17 09:51, Dave wrote: As already said by Romain Mamedov, rsync is viable alternative to send-receive with much less hassle. According to some reports it can even be faster. Thanks for confirming. I must have missed those reports. I had never considered this idea until now -- but I like

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Wed, Nov 1, 2017 at 2:19 AM, Marat Khalili wrote: > You seem to have two tasks: (1) same-volume snapshots (I would not call them > backups) and (2) updating some backup volume (preferably on a different > box). By solving them separately you can avoid some complexity... Yes, it

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Wed, Nov 1, 2017 at 1:15 AM, Roman Mamedov wrote: > On Wed, 1 Nov 2017 01:00:08 -0400 > Dave wrote: > >> To reconcile those conflicting goals, the only idea I have come up >> with so far is to use btrfs send-receive to perform incremental >> backups

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

I'm active user of backup using btrfs snapshots. Generally it works with some caveats. You seem to have two tasks: (1) same-volume snapshots (I would not call them backups) and (2) updating some backup volume (preferably on a different box). By solving them separately you can avoid some

Re: Need help with incremental backup strategy (snapshots, defragmentingt & performance)

On Wed, 1 Nov 2017 01:00:08 -0400 Dave wrote: > To reconcile those conflicting goals, the only idea I have come up > with so far is to use btrfs send-receive to perform incremental > backups as described here: > https://btrfs.wiki.kernel.org/index.php/Incremental_Backup

Need help with incremental backup strategy (snapshots, defragmentingt & performance)

Our use case requires snapshots. btrfs snapshots are best solution we have found for our requirements, and over the last year snapshots have proven their value to us. (For this discussion I am considering both the "root" volume and the "home" volume on a typical desktop workstation. Also, all

[PATCH v4 1/2] btrfs-progs: device: add description of alias to help message

State that the 'delete' is the alias of 'remove' as the man page says. Signed-off-by: Tomohiro Misono Reviewed-by: Satoru Takeuchi --- cmds-device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmds-device.c

[PATCH v3 1/2] btrfs-progs: device: add description of alias to help message

State the 'delete' is the alias of 'remove' as the man page says. Signed-off-by: Tomohiro Misono Reviewed-by: Satoru Takeuchi --- cmds-device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmds-device.c

[PATCH v2 1/3] btrfs-progs: device: add description of alias to help message

State the 'delete' is the alias of 'remove' as the man page says. Signed-off-by: Tomohiro Misono Reviewed-by: Satoru Takeuchi --- cmds-device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmds-device.c

Re: [PATCH] btrfs-progs: doc: update help/document of btrfs device remove

On 2017/10/11 6:22, Satoru Takeuchi wrote: > At Tue, 3 Oct 2017 17:12:39 +0900, > Misono, Tomohiro wrote: >> >> This patch updates help/document of "btrfs device remove" in two points: >> >> 1. Add explanation of 'missing' for 'device remove'. This

Re: [PATCH] btrfs-progs: doc: update help/document of btrfs device remove

At Tue, 3 Oct 2017 17:12:39 +0900, Misono, Tomohiro wrote: > > This patch updates help/document of "btrfs device remove" in two points: > > 1. Add explanation of 'missing' for 'device remove'. This is only > written in wikipage currently. > (https://btr

Re: Seeking Help on Corruption Issues

On Tue, Oct 03, 2017 at 03:49:25PM -0700, Stephen Nesbitt wrote: > > On 10/3/2017 2:11 PM, Hugo Mills wrote: > >Hi, Stephen, > > > >On Tue, Oct 03, 2017 at 08:52:04PM +, Stephen Nesbitt wrote: > >>Here it i. There are a couple of out-of-order entries beginning at 117. And > >>yes I did

Re: Seeking Help on Corruption Issues

On 10/3/2017 2:11 PM, Hugo Mills wrote: Hi, Stephen, On Tue, Oct 03, 2017 at 08:52:04PM +, Stephen Nesbitt wrote: Here it i. There are a couple of out-of-order entries beginning at 117. And yes I did uncover a bad stick of RAM: btrfs-progs v4.9.1 leaf 2589782867968 items 134 free

Re: Seeking Help on Corruption Issues

Hi, Stephen, On Tue, Oct 03, 2017 at 08:52:04PM +, Stephen Nesbitt wrote: > Here it i. There are a couple of out-of-order entries beginning at 117. And > yes I did uncover a bad stick of RAM: > > btrfs-progs v4.9.1 > leaf 2589782867968 items 134 free space 6753 generation 3351574 owner 2

Re: Seeking Help on Corruption Issues

On Tue, Oct 03, 2017 at 01:06:50PM -0700, Stephen Nesbitt wrote: > All: > > I came back to my computer yesterday to find my filesystem in read > only mode. Running a btrfs scrub start -dB aborts as follows: > > btrfs scrub start -dB /mnt > ERROR: scrubbing /mnt failed for device id 4: ret=-1,

Seeking Help on Corruption Issues

All: I came back to my computer yesterday to find my filesystem in read only mode. Running a btrfs scrub start -dB aborts as follows: btrfs scrub start -dB /mnt ERROR: scrubbing /mnt failed for device id 4: ret=-1, errno=5 (Input/output error) ERROR: scrubbing /mnt failed for device id 5:

[PATCH] btrfs-progs: doc: update help/document of btrfs device remove

This patch updates help/document of "btrfs device remove" in two points: 1. Add explanation of 'missing' for 'device remove'. This is only written in wikipage currently. (https://btrfs.wiki.kernel.org/index.php/Using_Btrfs_with_Multiple_Devices) 2. Add example of device removal

Re: Help Recovering BTRFS array

details could help the development of BTRFS and maybe avoid this happening or having a recovery option. Marc -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org

Re: Help Recovering BTRFS array

6944 > > Now i'm really panicked. Is the FS toast? Can any recovery be attempted? First I'm a user and list regular, not a dev. With luck they can help beyond the below suggestions... However, there's no need to panic in any case, due to the sysadmin's first rule of backups: The true valu

Help Recovering BTRFS array

Hello, I will try to provide all information pertinent to the situation i find myself in. Yesterday while trying to write some data to a BTRFS filesystem on top of a mdadm raid5 array encrypted with dmcrypt comprising of 4 1tb HDD my system became unresponsive and i had no choice but to hard

Re: Please help with exact actions for raid1 hot-swap

On 2017-09-11 17:33, Duncan wrote: Austin S. Hemmelgarn posted on Mon, 11 Sep 2017 11:11:01 -0400 as excerpted: On 2017-09-11 09:16, Marat Khalili wrote: Patrik, Duncan, thank you for the help. The `btrfs replace start /dev/sdb7 /dev/sdd7 /mnt/data` worked without a hitch (though I didn't try

Re: Please help with exact actions for raid1 hot-swap

Austin S. Hemmelgarn posted on Mon, 11 Sep 2017 11:11:01 -0400 as excerpted: > On 2017-09-11 09:16, Marat Khalili wrote: >> Patrik, Duncan, thank you for the help. The `btrfs replace start >> /dev/sdb7 /dev/sdd7 /mnt/data` worked without a hitch (though I didn't >> try to r

Re: Please help with exact actions for raid1 hot-swap

On 2017-09-11 09:16, Marat Khalili wrote: Patrik, Duncan, thank you for the help. The `btrfs replace start /dev/sdb7 /dev/sdd7 /mnt/data` worked without a hitch (though I didn't try to reboot yet, still have grub/efi/several mdadm partitions to copy). It also worked much faster than mdadm

Re: Please help with exact actions for raid1 hot-swap

Patrik, Duncan, thank you for the help. The `btrfs replace start /dev/sdb7 /dev/sdd7 /mnt/data` worked without a hitch (though I didn't try to reboot yet, still have grub/efi/several mdadm partitions to copy). It also worked much faster than mdadm would take, apparently only moving 126GB used

Re: Please help with exact actions for raid1 hot-swap

On 2017-09-10 02:33, Marat Khalili wrote: It doesn't need replaced disk to be readable, right? Then what prevents same procedure to work without a spare bay? In theory, nothing. In practice, there are reliability issues with mounting a filesystem degraded (and you should be avoiding running

Re: Help me understand what is going on with my RAID1 FS

Thanks everyone for the helpful and detailed responses. Now that you confirmed that everything is fine with my FS, I'm all relaxed because I can for sure live with the output of df. On Mon, Sep 11, 2017 at 5:29 AM, Andrei Borzenkov wrote: > 10.09.2017 23:17, Dmitrii

Re: Help me understand what is going on with my RAID1 FS

10.09.2017 23:17, Dmitrii Tcvetkov пишет: >>> Drive1 Drive2Drive3 >>> X X >>> X X >>> X X >>> >>> Where X is a chunk of raid1 block group. >> >> But this table clearly shows that adding third drive increases free >> space by 50%.

Re: Help me understand what is going on with my RAID1 FS

FLJ posted on Sun, 10 Sep 2017 15:45:42 +0200 as excerpted: > I have a BTRFS RAID1 volume running for the past year. I avoided all > pitfalls known to me that would mess up this volume. I never > experimented with quotas, no-COW, snapshots, defrag, nothing really. > The volume is a RAID1 from day

Re: Help me understand what is going on with my RAID1 FS

Am Sun, 10 Sep 2017 20:15:52 +0200 schrieb Ferenc-Levente Juhos : > >Problem is that each raid1 block group contains two chunks on two > >separate devices, it can't utilize fully three devices no matter > >what. If that doesn't suit you then you need to add 4th disk. After >

Re: Help me understand what is going on with my RAID1 FS

> > Drive1 Drive2Drive3 > > X X > > X X > > X X > > > > Where X is a chunk of raid1 block group. > > But this table clearly shows that adding third drive increases free > space by 50%. You need to reallocate data to actually

Re: Help me understand what is going on with my RAID1 FS

10.09.2017 19:11, Dmitrii Tcvetkov пишет: >> Actually based on http://carfax.org.uk/btrfs-usage/index.html I >> would've expected 6 TB of usable space. Here I get 6.4 which is odd, >> but that only 1.5 TB is available is even stranger. >> >> Could anyone explain what I did wrong or why my

Re: Help me understand what is going on with my RAID1 FS

10.09.2017 18:47, Kai Krakow пишет: > Am Sun, 10 Sep 2017 15:45:42 +0200 > schrieb FLJ : > >> Hello all, >> >> I have a BTRFS RAID1 volume running for the past year. I avoided all >> pitfalls known to me that would mess up this volume. I never >> experimented with quotas,

Re: Help me understand what is going on with my RAID1 FS

>Problem is that each raid1 block group contains two chunks on two >separate devices, it can't utilize fully three devices no matter what. >If that doesn't suit you then you need to add 4th disk. After >that FS will be able to use all unallocated space on all disks in raid1 >profile. But even then

Re: Help me understand what is going on with my RAID1 FS

> @Kai and Dmitrii > thank you for your explanations if I understand you correctly, you're > saying that btrfs makes no attempt to "optimally" use the physical > devices it has in the FS, once a new RAID1 block group needs to be > allocated it will semi-randomly pick two devices with enough space

Re: Help me understand what is going on with my RAID1 FS

@Kai and Dmitrii thank you for your explanations if I understand you correctly, you're saying that btrfs makes no attempt to "optimally" use the physical devices it has in the FS, once a new RAID1 block group needs to be allocated it will semi-randomly pick two devices with enough space and

Re: Help me understand what is going on with my RAID1 FS

>Actually based on http://carfax.org.uk/btrfs-usage/index.html I >would've expected 6 TB of usable space. Here I get 6.4 which is odd, >but that only 1.5 TB is available is even stranger. > >Could anyone explain what I did wrong or why my expectations are wrong? > >Thank you in advance I'd say df

Re: Help me understand what is going on with my RAID1 FS

Am Sun, 10 Sep 2017 15:45:42 +0200 schrieb FLJ : > Hello all, > > I have a BTRFS RAID1 volume running for the past year. I avoided all > pitfalls known to me that would mess up this volume. I never > experimented with quotas, no-COW, snapshots, defrag, nothing really. > The

Help me understand what is going on with my RAID1 FS

Hello all, I have a BTRFS RAID1 volume running for the past year. I avoided all pitfalls known to me that would mess up this volume. I never experimented with quotas, no-COW, snapshots, defrag, nothing really. The volume is a RAID1 from day 1 and is working reliably until now. Until yesterday it

Re: Please help with exact actions for raid1 hot-swap

On 10 September 2017 at 08:33, Marat Khalili wrote: > It doesn't need replaced disk to be readable, right? Only enough to be mountable, which it already is, so your read errors on /dev/sdb isn't a problem. > Then what prevents same procedure to work without a spare bay? It is

Re: Please help with exact actions for raid1 hot-swap

It doesn't need replaced disk to be readable, right? Then what prevents same procedure to work without a spare bay? -- With Best Regards, Marat Khalili On September 9, 2017 1:29:08 PM GMT+03:00, Patrik Lundquist wrote: >On 9 September 2017 at 12:05, Marat Khalili

Re: Please help with exact actions for raid1 hot-swap

Patrik Lundquist posted on Sat, 09 Sep 2017 12:29:08 +0200 as excerpted: > On 9 September 2017 at 12:05, Marat Khalili wrote: >> Forgot to add, I've got a spare empty bay if it can be useful here. > > That makes it much easier since you don't have to mount it degraded, > with the

Re: Please help with exact actions for raid1 hot-swap

On 9 September 2017 at 12:05, Marat Khalili wrote: > Forgot to add, I've got a spare empty bay if it can be useful here. That makes it much easier since you don't have to mount it degraded, with the risks involved. Add and partition the disk. # btrfs replace start /dev/sdb7

Re: Please help with exact actions for raid1 hot-swap

Forgot to add, I've got a spare empty bay if it can be useful here. -- With Best Regards, Marat Khalili On September 9, 2017 10:46:10 AM GMT+03:00, Marat Khalili wrote: >Dear list, > >I'm going to replace one hard drive (partition actually) of a btrfs >raid1. Can you please spell

Re: Please help with exact actions for raid1 hot-swap

On 9 September 2017 at 09:46, Marat Khalili wrote: > > Dear list, > > I'm going to replace one hard drive (partition actually) of a btrfs raid1. > Can you please spell exactly what I need to do in order to get my filesystem > working as RAID1 again after replacement, exactly as it

Please help with exact actions for raid1 hot-swap

Dear list, I'm going to replace one hard drive (partition actually) of a btrfs raid1. Can you please spell exactly what I need to do in order to get my filesystem working as RAID1 again after replacement, exactly as it was before? I saw some bad examples of drive replacement in this list so I

Re: Please help. Repair probably bitflip damage and suspected bug

> [Sun Jun 18 04:02:43 2017] BTRFS critical (device sdb2): corrupt node, bad key order: block=5123372711936, root=1, slot=82 >From the archives, most likely it's bad RAM. I see this system also uses XFS v4 file system, if it were made as XFS v5 using metadata csums you'd probably eventually run

Re: Help on using linux-btrfs mailing list please

; > It's worth noting that vger lists have rules different to those in most of > Free Software communities: on vger, you're supposed to send copies to > everyone -- pretty much everywhere else you are expected to send to the list > only. This is done by "Reply List" (in Thunderbir

Re: Help on using linux-btrfs mailing list please

ere else you are expected to send to the list only. This is done by "Reply List" (in Thunderbird, 'L' in mutt, ...). Such lists do add a set of "List-*:" headers that help the client. Мяу! -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ A dumb species has no way to open a tuna can. ⢿⡄⠘⠷⠚⠋⠀ A smart spe

Re: Please help. Repair probably bitflip damage and suspected bug

I just noticed a series of seemingly btrfs related call traces that for the first time, did not lock up the system. I have uploaded dmesg to https://paste.ee/p/An8Qy Anyone able to help advise on these? Thanks Jesse On 19 June 2017 at 17:19, Jesse <btrfs_mail_l...@mymail.isbest.biz>

Re: Help on using linux-btrfs mailing list please

2017-06-19 13:15 GMT+03:00 Jesse : > Thanks again. So am I to understand that you go into your 'sent' > folder, find a mail to the mail list (that is not CC to yourself), > then you reply to this and add the mail list when you need to update > your own post that

Re: Help on using linux-btrfs mailing list please

2017-06-19 13:03 GMT+03:00 Jesse : > Thanks Ivan. > What about when initiating a post, do I do the same eg: > TO: myself > CC: mailing list > > or do I > TO: mailing list > CC: myself If your mail client doesn't have "sent" folder, you can, of course, follow one

Re: Help on using linux-btrfs mailing list please

2017-06-19 13:03 GMT+03:00 Jesse : > Thanks Ivan. > What about when initiating a post, do I do the same eg: > TO: myself > CC: mailing list > > or do I > TO: mailing list > CC: myself When initiating a post you should to specify "TO: mailing list" only, without

Re: Help on using linux-btrfs mailing list please

Thanks Ivan. What about when initiating a post, do I do the same eg: TO: myself CC: mailing list or do I TO: mailing list CC: myself TIA On 19 June 2017 at 17:48, Ivan Sizov wrote: > 2017-06-19 12:32 GMT+03:00 Jesse : >> So I guess that

Re: Help on using linux-btrfs mailing list please

2017-06-19 12:32 GMT+03:00 Jesse : > So I guess that means when I initiate a post, I also need to send it > to myself as well as the mail list. You need to do it in the reply only, not in the initial post. > Does it make any difference where I put respective

Re: Help on using linux-btrfs mailing list please

Ok thanks Ivan. So I guess that means when I initiate a post, I also need to send it to myself as well as the mail list. Does it make any difference where I put respective addresses, eg: TO: CC: BCC: Regards Jesse On 19 June 2017 at 17:20, Ivan Sizov wrote: > You should

Re: Help on using linux-btrfs mailing list please

You should reply both to linux-btrfs@vger.kernel.org and the person whom you talk to. 2017-06-19 11:37 GMT+03:00 Jesse : > I have subscribed successfully and am able to post successfully and > eventually view the post on spinics.net when it becomes available: >

Re: Please help. Repair probably bitflip damage and suspected bug

is related to the crashing. AFAIK rsync should be creating the temp file in the destination drive (xfs), unless there is some part of rsync that I am not understanding that would be writing to the file system drive (btrfs) which is also in the case the source hdd (btrfs). Can someone please help with these btrf

Help on using linux-btrfs mailing list please

I have subscribed successfully and am able to post successfully and eventually view the post on spinics.net when it becomes available: eg: http://www.spinics.net/lists/linux-btrfs/msg66605.html However I do not know how to reply to messages, especially my own to add more information, such as a

Please help repair probably bitflip damage

My Linux Mint system is starting up and usable, however, I am unable to complete any scrub as they abort before finished. There are various inode errors in dmesg. Badblocks (readonly) finds no errors. checking extents gives bad block 5123372711936 on both /dev/sda2 and /dev/sda2. A btrfscheck

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