On Fri, Jan 13, 2006 at 02:29:15PM +0100, Christoph P. Kukulies wrote:
On Thu, Jan 12, 2006 at 02:23:37PM -0700, Kenneth D. Merry wrote:
Then I tried to read back
dd if=/dev/ad2 of=/dev/zero bs=2m
Yes, just for the fun I said 2m blocksiye. And now we come back
to FreeBSD contents:
Thanks, folks, for the interesting contributions. I really should
have marked the subject OT but there spring up a lot
of interesting ideas.
On Fri, Jan 13, 2006 at 08:13:00AM +1100, Peter Jeremy wrote:
On Thu, 2006-Jan-12 10:48:38 +0100, Christoph Kukulies wrote:
dd if=/dev/ad2 of=/dev/ad3
On Fri, 13 Jan 2006, Peter Jeremy wrote:
PJ The process is running now since yesterday evening and it is at 53 MB
PJ at a transfer rate of about 1.1 MB/s.
PJ
PJ In case the the result being unusable I would like to find a way to make
this
PJ copying faster.
PJ
PJ Note that whilst increasing
On Thu, Jan 12, 2006 at 02:23:37PM -0700, Kenneth D. Merry wrote:
written by phk) that is designed to do disk-to-disk recovery - it
copys data in big slabs until it gets an error and then works around
the faulty area block by block.
It's called 'recoverdisk', and is in
Am 13.01.2006 um 14:29 schrieb Christoph P. Kukulies:
Just for the record: Before I wanted to give back in my faulty disk
to my computer supplier as a case for warranty, I zeroed out the
faulty
disk.
dd if=/dev/zero of=/dev/ad2 bs=1m
It took half an hour to zero out the 80GB. Transferrate
On Friday 13 January 2006 08:29 am, Christoph P. Kukulies wrote:
On Thu, Jan 12, 2006 at 02:23:37PM -0700, Kenneth D. Merry wrote:
written by phk) that is designed to do disk-to-disk recovery - it
copys data in big slabs until it gets an error and then works around
the faulty area block
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
working , the errors in the Windows partition are causing Windows do ask for a
filesystem check nearly everytime I reboot the computer. One time
On Thu, Jan 12, 2006 at 10:48:38AM +0100 I heard the voice of
Christoph Kukulies, and lo! it spake thus:
dd if=/dev/ad2 of=/dev/ad3 conv=noerror
Give it a bigger blocksize (say, bs=1m or so) and it'll go a **LOT**
faster.
My motherboard is an ASUS P4S8X with an on board promise controller
Christoph Kukulies wrote:
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
working , the errors in the Windows partition are causing Windows do ask for a
filesystem check nearly everytime I
Christoph Kukulies wrote:
Anyway, I decided to buy a second identical hard disk and tried to
block by block copy the old disk to the new one using
dd if=/dev/ad2 of=/dev/ad3 conv=noerror
The process is running now since yesterday evening and it is at 53 MB
at a transfer rate of about 1.1
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to
develop read errors.
Since you are using a modern disk, you should check your smart counters. I
know how to do it on NetBSD, and I believe the command is also available on
FreeBSD. First, you have to turn on the smart (S.M.A.R.T.)
In the last episode (Jan 12), Christoph Kukulies said:
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop
read errors. I have FreeBSD and Win XP on that disk. Although FreeBSD
ist still working , the errors in the Windows partition are causing
Windows do ask for a filesystem
In the last episode (Jan 12), Christoph Kukulies said:
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop
read errors. I have FreeBSD and Win XP on that disk. Although FreeBSD
ist still working , the errors in the Windows partition are causing
Windows do ask for a
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error indication of which files are so
trashed. This is asking for trouble.
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error indication of which files are so
trashed. This is asking for
Bakul Shah wrote:
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error indication of which files are so
I think after the dd is done, fsck should be run against the affected
filesystems, which should take care of most of the issues.
For metadata yes, but not for normal file data. He wouldn't even know
what got trashed.
The OP's question was how to make dd faster, not really how to get the
On Thu, 2006-Jan-12 10:48:38 +0100, Christoph Kukulies wrote:
dd if=/dev/ad2 of=/dev/ad3 conv=noerror
The process is running now since yesterday evening and it is at 53 MB
at a transfer rate of about 1.1 MB/s.
In case the the result being unusable I would like to find a way to make this
copying
Moin moin, wie geht's :-)
Christoph Kukulies wrote on Thu, Jan 12, 2006 at 10:48:38AM +0100:
My notebooks' hard disk, a Hitachi Travelstar 80 GB starts to develop read
errors. I have FreeBSD and Win XP on that disk. Although FreeBSD ist still
working , the errors in the Windows partition
On Fri, Jan 13, 2006 at 08:13:00 +1100, Peter Jeremy wrote:
On Thu, 2006-Jan-12 10:48:38 +0100, Christoph Kukulies wrote:
dd if=/dev/ad2 of=/dev/ad3 conv=noerror
The process is running now since yesterday evening and it is at 53 MB
at a transfer rate of about 1.1 MB/s.
In case the the
Ivan Voras wrote this message on Thu, Jan 12, 2006 at 18:48 +0100:
Bakul Shah wrote:
In the last episode (Jan 12), Christoph Kukulies said:
dd if=/dev/ad2 conv=noerror,sync bs=64k | dd of=/dev/ad3 bs=64k
So now on the new disk he has files with random blocks of
zeroes and *no* error
* Peter Jeremy [EMAIL PROTECTED] [2006-01-13 08:13 +1100]:
Note that whilst increasing the DD blocksize will speed up the
transfer, it will also increase the amount of collateral damage when a
hard error occurs. If you rummage around the ports or tools tree,
you'll find a utility (its name
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