Search found 524 matches

by admin
Mon Jun 21, 2010 12:20 pm
Forum: How to use FSArchiver
Topic: -j multi-threaded compression
Replies: 3
Views: 6200

Re: -j multi-threaded compression

I guess you have a DualCore CPU with Hyper Threading. Then the system will see 4 logical CPUS (cat /proc/cpuinfo) In that case it makes sense to use "-j4", but you can also prefer "-j3" if you want to leave one thread for the other applications so that your systems is more responsive during the back...
by admin
Thu Jun 17, 2010 5:40 pm
Forum: Bug reports
Topic: Bus error with fsarchiver on SystemRescueCD
Replies: 13
Views: 11134

Re: Bus error with fsarchiver on SystemRescueCD

Thanks for this new log file. Unfortunately I can't see anything that would explain the problem. Another approach would be to run fsarchiver in various conditions to narrow it down to one particular thing (or combination of things) that are necessary to have this problem. But it can take some time. ...
by admin
Thu Jun 17, 2010 5:36 pm
Forum: Miscellanous
Topic: Hyperthreading
Replies: 1
Views: 4733

Re: Hyperthreading

Yes you are right the -j option can have an unexpected impact. The speed depends on many things: CPU, disk, compression level, jobs, ... Also I am quite sure it would be possible to optimize performance by doing many tests and spending time on that, but I have to finish the "savept" stuff first and ...
by admin
Thu Jun 17, 2010 5:33 pm
Forum: Feature request
Topic: progress bar or purcentage of progression for fsarchiver
Replies: 5
Views: 11625

Re: progress bar or purcentage of progression for fsarchiver

There are a lot of improvements like that in the future. I can't tell you when it will be done, it depends on the spare time and priorities, but I will try to do that when I have time.
by admin
Thu Jun 17, 2010 5:30 pm
Forum: General questions
Topic: Trouble archiving a Win7 partition
Replies: 2
Views: 3233

Re: Trouble archiving a Win7 partition

Do you always have the first error on the same file ? To narrow it down you should mount the partition using ntfs-3g directly and see if you can do a stat on that file in the shell. You can also check that your memory is working properly (just run memtest from the menu in sysresccd). I also suspect ...
by admin
Tue Jun 08, 2010 11:27 am
Forum: Bug reports
Topic: Bus error with fsarchiver on SystemRescueCD
Replies: 13
Views: 11134

Re: Bus error with fsarchiver on SystemRescueCD

A computer with not enough memory can have errors if you run very high compression levels (-z8 or -z9) especially if you are running multiple compression jobs (-jX). But it should not be a problem to just run fsarchiver with the default compression options (equivalent to -z3 -j1). With the new strac...
by admin
Mon Jun 07, 2010 6:00 pm
Forum: Bug reports
Topic: Bus error with fsarchiver on SystemRescueCD
Replies: 13
Views: 11134

Re: Bus error with fsarchiver on SystemRescueCD

I don't see any problem there. Could you run bash in strace with the -f option so that we can see if the problem is with the shell.
It will trace both bash and fsarchiver (its child):

1) strace -f -o /var/tmp/strace.txt bash
2) in bash just run fsarchiver
3) type "exit" in bash
by admin
Mon Jun 07, 2010 3:22 pm
Forum: General questions
Topic: FSArchiver supported on RHEL 5.5 for IBM Power7 systems ?
Replies: 2
Views: 3057

Re: FSArchiver supported on RHEL 5.5 for IBM Power7 systems

PPC packages are available in Fedora and Debian, so you can compile it on PPC. The code should be endianess neutral, so you should be able to read an archive from one architecture on another arch. But I have never tested it since I don't have the hardware. There is no official package for RHEL/Cento...
by admin
Fri May 28, 2010 10:51 am
Forum: Bug reports
Topic: Bus error with fsarchiver on SystemRescueCD
Replies: 13
Views: 11134

Re: Bus error with fsarchiver on SystemRescueCD

Could you run fsarchiver from strace to see what's in the logs ? Basically you just have to run fsarchiver with its arguments as an option of strace: strace -o /var/tmp/fsarchiver-strace.log fsarchiver savefs /path/to/myarchive.fsa /dev/xxx /dev/yyy It will produce a log in /var/tmp/fsarchiver-strac...
by admin
Tue May 25, 2010 9:32 pm
Forum: General questions
Topic: Is fsarchiver network capable?
Replies: 4
Views: 4291

Re: Is fsarchiver network capable?

You don't have to move the archive to the server. You can just use cifs/nfs to write the archive file directly on the server. Just be sure you use the latest version since old fsarchiver versions had a corruption when the archive was written to a cifs share. Now it's fixed.
by admin
Tue May 25, 2010 11:38 am
Forum: Feature request
Topic: deduplication
Replies: 2
Views: 5872

Re: deduplication

Unfortunately I don't think it will be possible to do that. If the data file was a filesystem, just like squashfs then we could imagine such a feature. But I think a sequential archive file is not appropriate for that sort of features.
by admin
Tue May 25, 2010 11:37 am
Forum: General questions
Topic: Is fsarchiver network capable?
Replies: 4
Views: 4291

Re: Is fsarchiver network capable?

fasrchiver has to be executed on the client because it must have a normal access to the filesystem to see all specs of it, such as the label, or advanced properties. It must have access to the block device (/dev/sda1 for instance), you can't just provide it a mounted cifs/nfs filesystem. Most linux ...
by admin
Thu May 13, 2010 8:30 am
Forum: Feature request
Topic: Statistics of all the FS regrouped at the end
Replies: 3
Views: 6265

Re: Statistics of all the FS regrouped at the end

Thanks for that suggestion. I have a lot of things to do so I can just add it to my list. I will take time for these things to be changed. I was recently focused on fixing bugs in the stable 0.6.x branch, and I also have to complete tests and debugging of the savept / restpt feature (save / restore ...
by admin
Tue May 11, 2010 8:58 pm
Forum: Bug reports
Topic: Restored filesys is +119 GB bigger than backed up filesys
Replies: 13
Views: 10630

Re: Restored filesys is +119 GB bigger than backed up filesy

There are two checksums: - each data block (few hundred kilo-bytes) has a 32bit checksum - each non-empty file has an md5sum With that you can be sure that corruptions will be reported if there is one (except bug in the program of course) Unfortunately there is no option to check the archive yet, it...
by admin
Tue May 11, 2010 11:56 am
Forum: General questions
Topic: [errno=95, Operation not supported]:
Replies: 12
Views: 11620

Re: [errno=95, Operation not supported]:

The running system may have an impact on that. For instance if you run savefs / restfs from a system where selinux is enabled the result will be different. On SystemRescueCd selinux is disabled so there won't be any permission denied for that reason, but it can still read/restore selinux attributes ...