40
votes
Accepted
Do I still need a backup if I have a redudant storage system with rollback capabilities?
What you describe is essential a geographically distributed RAID and a RAID was never a backup.
Online sync usually means everything you do on the primary storage gets immediately replicated to the ...
- 99.1k
28
votes
How To Backup "crontab -e" Files?
You can periodically run crontab -l > my_crontab.backup to backup the crontab into file.
- 381
12
votes
How to revert back and undo changes in Centos?
For production use, the best approach is to have a testing environment where you can test any changes before applying them into production. Having this as a VM of course helps with snapshots and ...
- 99.1k
11
votes
Accepted
Is My Understanding of Windows Bare Metal System / Images Backups vs. File Backups Correct?
Depending on what backup solution you are using the terms are fairly Synonyms
Bare-metal
Can also be a full backup with system state.
Incremental or Differential.
Depending on preference and space ...
- 128
8
votes
Using mongodb tools (mongodump, mongorestore) from another machine
I know this is quite an old question, but googling took me there. On ubuntu 14.04 I have a following line in /etc/sources.list.d/mongo.list to have the 3.2 version there:
deb http://repo.mongodb.org/...
- 315
8
votes
Robocopy - Overwrite all files unless file in destination is newer
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/robocopy
/xo Excludes older files.
That’s what you need.
- 13.8k
7
votes
Do I still need a backup if I have a redudant storage system with rollback capabilities?
The 30-day rollback is a great capability, but what if "critically-important-file-xyz" became corrupt/damaged and this was not detected until 31+ days later? This situation is the difference between ...
6
votes
Do I still need a backup if I have a redudant storage system with rollback capabilities?
Having geographically separated machines both having the data is good.
What happens when you have multiple failures involving both or all your sites?
A fire at one, theft of the servers at the other?
...
6
votes
How do I order a retrieval drive from AWS Glacier?
You can't export data directly from Glacier to a disk.
S3 Glacier Storage Class
If your data was in S3, moved to the Glacier storage class, you initiate a retrieval request from Glacier to S3. You ...
- 32.2k
6
votes
How to revert back and undo changes in Centos?
This is best done with in a virtual machine such as VMware or VirtualBox, rather than on physical hardware. Take a snapshot of your virtual machine prior to making any changes, then it's a trivial ...
- 301
5
votes
How To Backup "crontab -e" Files?
I made my backup into a cron job.
0 9 * * * crontab -l | gzip > /backups/'crontab-'$(date +"\%Y\%m\%d-\%H\%M\%S")'.gz'
- 151
4
votes
Do I still need a backup if I have a redudant storage system with rollback capabilities?
The question here seems to be about just how disconnected and geographically distinct a replicated copy of your data needs to be before it's a backup and not high availability/redundancy ...
- 183
4
votes
Accepted
Cannot restore duplicity backup
It seems that the .difftar files were compressed after all. Restoring worked after renaming them to .difftar.gz. Must be a bug in duplicity.
- 1,341
4
votes
Linux - What directories should I exclude when backing up a server?
As pointed by this great community:
/dev /proc /sys /tmp /run /media /lost+found /boot ( /boot is optional see other comments)
For reference my final rsync command (under Arch with external media ...
4
votes
How to do restore test with limited testing resources?
You test your backups primarily to test your restore procedures so that when you're in crisis situation you'll know exactly what to do and when everybody will be panicking you'll be competent, ...
- 78.7k
4
votes
Can I get the backup of my aws instance?
If you made a snapshot of your instance, you can create new volume from that snapshot, detach the current volume from your instance and attached the one restored from a snapshot.
There are also ...
- 2,516
4
votes
Accepted
Backup & Restore Large Files in Windows Server 2008
Use Windows Server Backup to back up the files/disk to an external USB drive. Then restore them.
- 110k
4
votes
Accepted
how do I extract a tar archive with larger block size?
I believe you're looking for the -b switch of tar:
-b, --blocking-factor BLOCKS
BLOCKS x 512 bytes per record
Now your command will look like this:
tar xfv mybigbigtar.tar --blocking-factor=...
- 2,516
4
votes
Accepted
RAID 5 array not working after disk replacement?
Chkdsk utility must help in order to restore the NTFS partition -> chkdsk X: (drive letter) /f /r
If the diskpart already identify partition as RAW, you can use EaseUS to restore the partition and ...
- 5,570
4
votes
Accepted
Will a Solaris server tolerate a ZFS pool from its future?
This is one of those "zfs just works" kinds of answers...
The pool metadata is actually stored in the pool, not on the local OS. So, for example, if a system crashes and isn't shut down ...
- 448
3
votes
System State Backup on Domain Controller
The system state backup (when done on a Domain Controller) includes AD schema/data. See here for more details.
- 49k
3
votes
Accepted
Centos 7 - back up and restore to "clean" state
Sorry to break this to you, but you're going about this from the wrong angle. :)
Instead of modifying your server's configuration directly and then having to worry about backing it up, you should be ...
- 110k
3
votes
Accepted
Regular backup and archival options for a client device that runs MS SQL Express including restores
I'm going to assume your budget is limited (because it always is, isn't it?).
Head on over to Ola Hallengren's site and grab a copy of his maintenance solution. Run the script after you've configured ...
- 18k
3
votes
Create a MySQL slave from another slave, but point it at the master
I did what @RolandoMySQLDBA suggests but also adding a 6' and an 8' steps (this solves what @Hussain Tamboli comments.):
Step 1) Setup a New Server (ServerC)
Step 2) On ServerC, Install MySQL (same ...
- 131
3
votes
How to restore a Duplicity backup to a new host?
send backup secret-key from BAK-SERVER to RESTORE-SERVER
#ON BAK-SERVER
gpg --list-keys
gpg --armor --export-secret-keys bak-key-name > bak-key-name.secret.asc
cat bak-key-name.secret.asc |nc -l ...
- 251
3
votes
Accepted
Server 2012 R2 backup and restore
I assume, it happens bacause of "computer credentials" change. Computer account password refresh is automatic process that happens between computer and domain controller without notification to or ...
- 9,066
2
votes
mke2fs says "Device or resource busy while setting up superblock"
I got the same error when I tried to format a USB drive on Mac OS X. In my case, unmounting the disk first with diskutil unmountDisk ... solved the problem.
Details: First, run diskutil list and ...
2
votes
easy way to restore incremental rsync backup?
As the various backup dirs only contain the changed files by the last current backup, the restore procedure is somewhat complex: you need to restore the current full backup and re-apply the various ...
- 49k
2
votes
Regular backup and archival options for a client device that runs MS SQL Express including restores
I think you're conflating high availability with back ups. They're two different things. Always On Availability groups aren't related to backing up the SQL database. You also don't need to backup the ...
- 110k
2
votes
Accepted
Restore files that are not in the Bacula database using a Bacula file deamon
The bextract manual (at least for ver. 5.2, the most popular in distros) does not list any option to specify remote host. So your options are:
mount a share from the remote machine in the director's ...
- 2,143
Only top scored, non community-wiki answers of a minimum length are eligible