Ubuntu :: How To Use Resync To Backup
Mar 27, 2011
So, I figure it's high time I learn to use this utility (or something else, doesn't matter to me). I want to backup a photo directory from an internal to external drive.
When I explore in Ubuntu, it names my external drive SimpleDrive . . . the destination directory on that drive I call Backup PhotoBank 31811. I think I had a leading zero that Ubuntu drops for the date (031811).My source drive is referred to by Ubuntu as 320 GB Filesystem, and the source directory on that drive is referred to as PhotoBank.
When I use these designations on the command line, rsync returns error messages stating that no such file or drive exists (note, I have not referenced any files within the directories).If I click on properties for the 320 GB Filesystem, there is another name designated, a very long combination of numbers and letters.I've tried using that name, but still get the same error messages from rsync.
Is there a front end for this program that is more graphical in nature? I don't mind using the command line, as I know that once I get this sorted out, it should be no problem, but I'm not too proud to resort to the ultimate in simplicity.
I am seeking to copy the files from the internal one time, then, I plan to delete the files from the internal, load it back up, copy the new files to the external, and so forth. I'm not really looking to sync the two drives.
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Sep 20, 2010
I have a low power machine I use as an SFTP server.It currently contains two raid 1 arrays, and I am working on adding a third. However, I'm having a bit more trouble with this array than I did the prior arrays.My suspicion is that I have a bad drive, I am just not sure how to confirm it.I have successfully formatted both drives with EXT3 and performed disk checks on both which did not indicate a problem.
I can see it progressing in the blocks count, but it's incredibly slow. In the course of 5 minutes it progressed from 1024/1953511936 to 1088/1953511936.Checking top, not even 10% of my CPU is being used. Are there any other performance items I could check that could be affecting this?
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Oct 17, 2010
I have 2 servers both with software raid 5 for the main storage partitions. 6 x 1.5 Tbyte drives. I observe that the these arrays seem to resync quite often. cat /proc/mdstat or smartctl -a does not show any problems with the drives. Is this normal. What is the default period between resyn. What would cause a resyn of the array. The standard resync time for the array is over 900 minutes which can become an inconvience for the server users if it occurs on a week day as it degrades the performance.
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Aug 1, 2010
I have ClearOS (CentOS) installed. I have 2 x 2TB SATA HDDs (hda & hdc). At installation time, I configured a RAID 1 (and LVM) between the two HDDs. After a power problem happened, the two HDD were re-syncing and I checked it using: watch cat /proc/mdstat The speed didn't exceed 2100 KB/s I tried the following with no change:
echo 50000 > /proc/sys/dev/raid/speed_limit_min
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Jun 9, 2010
I have two 80 GB IDE hard disk. I have create raid1 partition in both drive using [URL] ink. raid is working fine. But i have copy some data on one hard disk (md0) but this data is not autometically copy in second hard disk(md1). I want when data is write on one hard disk, this data autometically write in second hard disk.
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Mar 11, 2010
I am running Kernel 2.6.18-128.el5 on a 64bit quad core machine with 8GB RAM. Using "mdadm" I setup a RAID1 array between two Western Digital 1.5TB drives. The problem is that the resync is running VERY slow. Here is a current status.
[root@royalflush shared]# cat /proc/mdstat Personalities : [raid1]
md1 : active raid1 hdc5[1] hda5[0]
1304493952 blocks [2/2] [UU]
[=>] resync = 6.2% (81592192/1304493952) finish=4280156.0min speed=4K/sec
unused devices: <none>
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Feb 25, 2010
On the ReadyNAS Duo, a RAID resync synchronizes the entire contents of one disk to another. It's a slow operation. So it's not something to be done lightly. By default, it is done whenever the unit is shut down uncleanly (generally the result of a hang or power interruption). It's something that can be disabled, though, such that a resync would be done only when manually requested. The authors of the software RAID driver in Linux (called "md") came up with a nice solution to the problem of slow RAID resyncs: the md driver allows you to assign a write intent bitmap to an md device, and where it's stored is configurable (the default is to store it on the md device in question, in the superblock). So when the array goes down unexpectedly (e.g., in a power outage), only the blocks that the md device was going to write will actually be resynced.
It's sort of like a journal for the md device itself. Now, the ReadyNAS Duo doesn't seem to use Linux md at all for implementing the RAID volume, but it does have an option to disable automatic resync in the event of an improper shutdown. And that leads to my question: how necessary is it to do a resync in such an event? If the Duo uses the same method as the Linux md driver, then obviously such a resync would rarely be necessary. But if it doesn't, then it would be the equivalent of using the md driver without a write-intent bitmap, and a resync would almost certainly be necessary in the event of an improper shutdown. Does the Duo (and maybe other units) use the equivalent of a write intent bitmap for RAID write operations?
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Jul 25, 2011
how can I stop resyncing permenently & how can I check whether the normal sata HDDs can support RAID before/after buying HDDs. Because on every saturday or sunday resync is starting itself even there is no entry about resncing in crontab. But if I run "cat /proc/mdstat" it is showing RAID1 is perfect. see the below output
#cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 hdb1[1] hda1[0]
513984 blocks [2/2] [UU]
[code]....
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Nov 9, 2015
I currently have a problem in running rsync on 64 bit Debian Jessie (although the problem also occurred with 64 bit Debian Wheezy)I am trying to use rsync to archive my home directory (which is on a hard disk) to a USB memory stick. The home directory is about 18GB in size and the memory stick has 32GB.
Unfortunately, rsync hangs after copying a certain number of files and the process eventually has to be killed. Rsync was rerun but hung again at about the same point as before.This has now happened several times. Each time the hang occurs at about the same point.Use of strace after the hang shows that rsync appears to be processing a pdf file at the time, although not always the same pdf file.I originally had the rsync hang problem on a PC which ran 64 bit Wheezy and which used a USB 2.0 port.
I now am running rsync on another PC, which runs 64 bit Jessie and which uses a USB 3.0 port..I have also tried three different USB sticks, two from one manufacturer and the third from another manufacturer.All give similar rsync hangs.
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Nov 30, 2010
I am learning software raid 1 with centos 5.5. I created the raid with out any problems and removed the first drive to check there was no problems and it booted. I have installed the old drive back in the system as hdc and need to resync the drives (used old drive as partitions correct) I thought I could use raidhotadd but id does not seem to exist anymore. how I resync the drives in the array hda primary and hdc secondary using mdadm
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Oct 14, 2010
I'm having issue with raid6. I already created a thread in the "Linux -General" forum, but it seems, there is no right audience
[URL]
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May 18, 2010
using Back In Time to backup my home directory to a second hdd that is mounted at /media/backupThe trouble is, I can do this using Back In Time (Root), but not using Back In Time without the root option. This is definitely a permissions issue - it can't write to the folder, but when I checked by right clicking on the backup directory and looking at the permission tab, it said I was the owner
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May 10, 2011
I install and tested Restore EE Backup server on a test PC with basic configuration and its working fine.
[URL]
The issue i have is where is the location these backup snapshots or files are saving? I want to add a separate Storage to save the backup?
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Jan 19, 2010
I have a scheduled backup to run on our server at work and since the 7/12/09 it has be making 592k files instead of 10Mb files, In mysql-admin (the GUI tool) I have a stored connection for the user 'backup', the user has select and lock rights on the databases being backed up. I have a backup profile called 'backup_regular' and in the third tab along its scheduled to backup at 2 in the morning every week day. If I look at one of the small backup files generated I see the following:
Code:
-- MySQL Administrator dump 1.4
--
-- ------------------------------------------------------
-- Server version`
[code]....
It seems that MySQL can open and write to the file fine, it just can't dump
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Feb 2, 2011
I've tried to google but not much luck. What I would like to do is have anumber of folders on my desktop and their contents, replicated/duplicated into another folder on the same PC in real time. So for example, if I were to change an OpenOffice document in a specific folder on my Desktop it would be replicated/duplicated in real time. If I had three folders on my Desktop A, B and C they would also appear/be backed up (in real time) in a folder called /home/backup. Can this be done?
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Jun 30, 2010
does anyone know of a good backup software for Ubuntu 10.4 that will let me select which folders to backup, rather than a complete backup? My install and settings etc can be replaced, but my photos and memories cannot!
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Sep 1, 2011
I have installed Ubuntu 11.04 onto HP EliteBook 8540w notebook and would like to backup the entire disk using some popular backup tool.
I have searched in the internet and found the closest tool is PartImage. But the bad news is that it does not support ext4 fs!
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Jun 12, 2010
I have been looking for a complete backup solution like "Acronis True Image Backup and Recovery" on Windows for Slackware a while.
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Jan 15, 2010
After I spent some time discovering The BIG BANG of Universe and The Meaning of Life :
I managed somehow to create a script to make some backup of files on server and TAR it and then FTP the archive to another location FTP server and then emails result.
It also measures time needed to complete it and deletes archive older than XX days (set in find -mtime +20) and makes incremental backup every weekday and FULL on Sundays (which suits me bcoz no heavy load).
Files for TAR to include and exclude are in txt files listed each line separate name:
file: including.txt:
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Nov 10, 2010
This script simply deletes files older than a certain age (in this case 7 days) from a certain location; I use it to purge old backups nightly, and it works as expected:
# delete backups older than 7 days
find /mnt/backup/* -mtime +7 -exec rm -Rf {} ;
The problem is, every morning I get an email with an error message something like this:
find: `/mnt/backup/subfolder': No such file or directory
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Sep 15, 2009
I am trying to create a backup script that will back up a single folder for a class i am in. I was wandering if I could get some help. If possible I would also like to know how to write a script that can encrypt that same file . I will be putting the back up in my /home/usr/Backup directory. I am not trying to back up my whole system just a single folder. I am using Fedora 11
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May 21, 2011
I'm just setting up a partition on a seperate HDD in my system. I plan to use the partition to backup the important files on my main HDD (to guard against HD crash).
The question I have is about where would be the typical location to auto mount this partition? Which would it be normal to go for:
1. /backup/
2. /media/backup/
3. /mnt/backup/
4. /home/chris/backup/
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Aug 10, 2011
I want to make a backup from my Email and my Favorites from Mozilla.
But which folders I have to make a backup from.
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May 10, 2010
Does anyone know of any decent enterprise level backup solutions for Linux? I need to backup a few servers and a bunch of desktops onto one backup server. Using rsync/tar.gz won't cut it. I need like bi-monthly full HDD backups, and things such as that, with a nice GUI interface to add/remove systems from the backup list. I need basically something similar to CommVault or Veritas. Veritas I've used before but it has its issues, such as leaving 30GB cache files. CommVault, I have no idea how much it is, and if it supports backing up to a hard drive rather than tape.
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Jun 13, 2011
When I backup with Dejadup, does it backup only the folders or the OS as well?
In case of a real crash, can I bring back the system to its pre crash state including the OS, using Dejadup backed up files?
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Feb 4, 2011
I am now preparing myself to upgrade lenny to squeeze and decided to do a backup on my system. I used backup-manager to do the job and it worked fine. how do you restore said backup data?
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Sep 13, 2010
Can some one give me a sample of a crontab for backing a directory please, System is Ubuntu 9.04Quote:
#!/bin/bash
# this file is an automated backup script, backup.sh.
# this backs up my domain site.
[code]....
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Jul 19, 2010
I have use backup-manager tool very often but now found some problems and goes to it official site backup-manager.org for search answers.But this site didn't open already more than week!
url
url
url
At now DNS records don't have A record:
Code:
$host backup-manager.org
backup-manager.org mail is handled by 10 private.sukria.net.
backup-manager.org mail is handled by 15 private.nxr.fr.
backup-manager.org mail is handled by 5 mx.sukria.net.
backup-manager.org mail is handled by 10 jupiter.unix-scripts.info.
Does this project moved, renamed or died?
Maybe it change the domain address?
Or this is only temporary problems with hosting or domain?
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Apr 9, 2011
I have installed an application manager(monitoring application) on my linux server. Now, i need to have backup schedule for my application. The application itself has executive file to backup database.But when i put this file in my crontab to schedule the backup program it wont run!50 09 * * * root /opt/ME/AppManager9/bin/BackupMysqlDB.sh
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Oct 24, 2010
I create Backup partition with dd and save my backup on NTFS partition. i want recover this backup,what should i do? can i use boot cd and use dd command for recover it?
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