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6

It depends. When you're making tarbal (or rsync copy) of changing data, files will be copied in state when copy of that one file started. And that is a trap. If you will have ie. 100 files in directory, all those files will be changing during backup and backup of one file will takes 1s, last copied file will be for 99s newer than first one. This can lead to ...


4

... i don't want my data to get lost The normal way to do this is to use a backup system that is compatible with your OS. Choose a backup system Perform backups Verify backups Perform hardware upgrade


4

I know this is an old question, but it is the first question that shows up when searching "commvault" on serverfault. I have two years of experience with Commvault Simpana v9 and v10 as a support technician and a year as a systems engineer. First Question To answer your first question, yes, a typical database restore creates .mdf and .ldf files ...


3

Onedrive is a consumer product and isn't meant as a commercial backup target. Rather than trying to shoehorn it into your backup architecture, why not look at something much simpler and more suited for the task, such as Azure Backup


2

NetBackup uses the VMware Storage API’s and shouldn’t cause issues but; VMsnapshots Snapshots are bad! this is a good explanation why Snapshots can cause issues and depending on the delta size of the file it may not get played into the backup routine. I have seen issues in the past where chains of snapshots have been missed. I would recommend that you ...


2

Your imagined scenarios all seem pretty unlikely to prompt Amazon to backtrack on the following statement, from the document you cited: The vault’s state will be set to Locked, and the policy will remain in effect until the heat death of the universe. This seems a bit at odds with your perspective: I'm imagining it could be enough if Amazon would ...


2

ASR has a few potential bottlenecks. Whether or not you can speed it up depends on where this is. If your on-prem process server is low on resources, that can cause slow replication. Identify what resources are being taxed and increase them (disk IO, RAM, network) Your WAN may be slow. Quick napkin math puts 128GB at 2 hours at just under 20Mbps. Do you ...


2

What is being backed up? Files, system state, SQL, Exchange? Has there been any change in the quantity of data? Have there been any permissions changes that might cause the application to hang? Are there any issues with the storage that is being backed up? How about the storage you're backing up to? RAID issues can cause slow reads, for example. ...


1

I like to use rsync. You can just rsync to your single backup if your goal is to have a backup if the VPS disappears, but for minimally more hard disk space you can use rsync hardlinked backups. You probably need to have a Linux system to backup to, because while rsync exists for Windows I don't think it would work with hard links.


1

While what Ondra Sniper Flidr writes is true, tar has the habit of refusing to work if the directory changes after it starts archiving. So no, it does not work right even in the scenarios where it should be safe.


1

You missed one possibly vital argument to rsync: --hard-links. It depends on the distribution, and I guess it's different now than it is in the past, but system directories and/or files (more so than user files) can easily be hard links to others. For example, in the somewhat recent past on Archlinux, /usr/X11R6/bin was a hard-link to /usr/bin. At present, I ...


1

Recent libvirt/kvm versions support the discard vdisc option (for SCSI vdisk type only). With this option enabled, you can issue fstrim / on the guest fileststem and unused blocks will be immediately discarded by the host vm image, compacting/reducing it via hole punching. See here (driver section, search for 'discard') and here for more information. If ...


1

If you have the FILE privilege you can, table by table, use SELECT ... INTO OUTFILE queries and download your data from those.



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