Hello, i'm started balancing on my raid0:
$ btrfs fi show
Label: none uuid: efdcd026-f5f0-49e7-a173-8eb777018119
Total devices 3 FS bytes used 4.57TB
devid3 size 1.82TB used 1.82TB path /dev/sdd
devid1 size 1.82TB used 1.82TB path /dev/sdc
devid2 size
On Fri, Mar 08, 2013 at 10:23:01PM -0700, Eric Sandeen wrote:
Doing this would reliably fail with -EBUSY for me:
# mount /dev/sdb2 /mnt/scratch; umount /mnt/scratch; mkfs.btrfs -f /dev/sdb2
...
unable to open /dev/sdb2: Device or resource busy
because mkfs.btrfs tries to open the device
On 3/9/13 6:27 AM, Chris Mason wrote:
On Fri, Mar 08, 2013 at 10:23:01PM -0700, Eric Sandeen wrote:
Doing this would reliably fail with -EBUSY for me:
# mount /dev/sdb2 /mnt/scratch; umount /mnt/scratch; mkfs.btrfs -f /dev/sdb2
...
unable to open /dev/sdb2: Device or resource busy
because
On Sat, Mar 09, 2013 at 07:17:04AM -0700, Eric Sandeen wrote:
On 3/9/13 6:27 AM, Chris Mason wrote:
On Fri, Mar 08, 2013 at 10:23:01PM -0700, Eric Sandeen wrote:
Doing this would reliably fail with -EBUSY for me:
# mount /dev/sdb2 /mnt/scratch; umount /mnt/scratch; mkfs.btrfs -f
Doing this would reliably fail with -EBUSY for me:
# mount /dev/sdb2 /mnt/scratch; umount /mnt/scratch; mkfs.btrfs -f /dev/sdb2
...
unable to open /dev/sdb2: Device or resource busy
because mkfs.btrfs tries to open the device O_EXCL, and somebody still has it.
Using systemtap to track bdev gets
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
Sorry for the late review. Better late than never?
cc'ing linux-btrfs - in general a good idea so btrfs experts
can evaluate the test as well.
---
297 | 75
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
same basic comments as for the previous test:
need definition of _require_cp_reflink somewhere
need to add test to groups file
remove recreate testdir to avoid collisions (or mktemp maybe?)
use
On 3/9/13 11:47 AM, Eric Sandeen wrote:
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
same comments as the others; looks good otherwise.
(whoops, cc: btrfs list)
-Eric
---
299 | 69
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
---
300 | 84
+++
300.out |4 +++
2 files changed, 88 insertions(+), 0 deletions(-)
create mode 100644 300
create mode
Some time ago, and occasionally since, we've discussed altering the
RAID-n terminology to change it to an nCmSpP format, where n is the
number of copies, m is the number of (data) devices in a stripe per copy,
and p is the number of parity devices in a stripe.
The current kernel
Signed-off-by: Hugo Mills h...@carfax.org.uk
---
cmds-filesystem.c | 135 -
1 file changed, 114 insertions(+), 21 deletions(-)
diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index 2210020..8ecc21a 100644
--- a/cmds-filesystem.c
+++
Balance filters are the second location which takes user input of
replication levels. Update this to use the common parser so that we can
provide nCmSpP-style names.
Signed-off-by: Hugo Mills h...@carfax.org.uk
---
cmds-balance.c | 23 ---
1 file changed, 8 insertions(+),
Teach mkfs.btrfs about nCmSpP format for replication levels, which avoids
the semantic uncertainty over the RAID-XYZ naming.
Signed-off-by: Hugo Mills h...@carfax.org.uk
---
mkfs.c | 91 +++-
1 file changed, 84 insertions(+), 7
Signed-off-by: Hugo Mills h...@carfax.org.uk
---
man/btrfs.8.in |9 +
man/mkfs.btrfs.8.in | 24 +++-
2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/man/btrfs.8.in b/man/btrfs.8.in
index 94f4ffe..2799ec7 100644
--- a/man/btrfs.8.in
+++
On Sat, Mar 09, 2013 at 10:31:25PM +0100, Harald Glatt wrote:
On Sat, Mar 9, 2013 at 9:31 PM, Hugo Mills h...@carfax.org.uk wrote:
Some time ago, and occasionally since, we've discussed altering the
RAID-n terminology to change it to an nCmSpP format, where n is the
number of copies, m
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On 09/03/13 12:31, Hugo Mills wrote:
Some time ago, and occasionally since, we've discussed altering the
RAID-n terminology to change it to an nCmSpP format, where n is
the number of copies, m is the number of (data) devices in a stripe per
copy,
So, no advice on how this could have happened?
Ok, maybe it won't happen again...
On Sun, Mar 3, 2013 at 5:44 PM, Alex Lyakas
alex.bt...@zadarastorage.com wrote:
Hi Chris,
On Sun, Mar 3, 2013 at 5:28 PM, Chris Mason chris.ma...@fusionio.com wrote:
On Sun, Mar 03, 2013 at 06:40:50AM -0700,
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
---
301 | 95
+++
301.out |7
2 files changed, 102 insertions(+), 0 deletions(-)
create mode 100644 301
create mode
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
---
303 | 127
+++
303.out | 72 +++
group |7 +++
3 files changed, 206 insertions(+), 0
On 1/18/13 3:48 PM, Koen De Wit wrote:
Signed-off-by: Koen De Wit koen.de@oracle.com
---
302 | 108
+++
302.out | 28
2 files changed, 136 insertions(+), 0 deletions(-)
create mode 100644 302
On Sat, Mar 09, 2013 at 02:25:25PM -0800, Roger Binns wrote:
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On 09/03/13 12:31, Hugo Mills wrote:
Some time ago, and occasionally since, we've discussed altering the
RAID-n terminology to change it to an nCmSpP format, where n is
the number
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On 09/03/13 17:44, Hugo Mills wrote:
You've got at least three independent parameters to the system in order
to make that choice, though, and it's a fairly fuzzy decision problem.
You've got:
- Device redundancy - Storage overhead - Performance
On Sun, Mar 10, 2013 at 6:41 AM, Roger Binns rog...@rogerbinns.com wrote:
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On 09/03/13 17:44, Hugo Mills wrote:
You've got at least three independent parameters to the system in order
to make that choice, though, and it's a fairly fuzzy decision
Very good points,
I was also gonna write something by the lines of 'all that matters is
achieving the minimum amount of redundancy, as requested by the user,
at the maximum possible performance'.
After reading your post now, Roger, I'm much more clear on what I
actually wanted to say,
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