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Backups of Media? How do you handle it?

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hyperlight:
I found myself in an interesting discussion about backups and redundancy here:

http://bakabt.me/details.php?id=158739&page=1#comments

As to not clutter the post I have decided to continue this discussion in the forums. In regards to backup cost, 1-2TBs is decently easy to backup. However it becomes exceedingly cost prohibitive as that value increases. I personally have stopped backing up my media RAID5 arrays as the costs are too high associated with it. Currently my media libraries are at 30TBs and increasing at 8TB a year give or take. I currently just backup my mission critical data and irrecoverable stuff, which is around 4TBs.

I don't know about everyone else, but I find just having disk redundancy enough. I don't have to worry about accidental deletion as IMO if your dumb enough to do that you deserve it. As for natural disasters fire ect, I think its so rare its not worth considering. I just keep insurance to replace the equipment.

What are everyones thoughts on this? Does anyone have a cheap backup solution that they employ for their media? I considered cloud based backup, but after doing cost analysis I found that it would costs thousands a month to keep 30TB in the cloud, not to mention many months to actually upload that.

Tatsujin:

--- Quote from: hyperlight on March 28, 2011, 02:50:49 AM ---I found myself in an interesting discussion about backups and redundancy here:

http://bakabt.me/details.php?id=158739&page=1#comments

As to not clutter the post I have decided to continue this discussion in the forums. In regards to backup cost, 1-2TBs is decently easy to backup. However it becomes exceedingly cost prohibitive as that value increases. I personally have stopped backing up my media RAID5 arrays as the costs are too high associated with it. Currently my media libraries are at 30TBs and increasing at 8TB a year give or take. I currently just backup my mission critical data and irrecoverable stuff, which is around 4TBs.

I don't know about everyone else, but I find just having disk redundancy enough. I don't have to worry about accidental deletion as IMO if your dumb enough to do that you deserve it. As for natural disasters fire ect, I think its so rare its not worth considering. I just keep insurance to replace the equipment.

What are everyones thoughts on this? Does anyone have a cheap backup solution that they employ for their media? I considered cloud based backup, but after doing cost analysis I found that it would costs thousands a month to keep 30TB in the cloud, not to mention many months to actually upload that.

--- End quote ---
All anime are put in my externals. With the exception of all incoming anime from using torrents which is handled by one hard drive that has one partition.

The other internal hard drives have divided partitions, with one handling all music, the other all installation files (anything I install basically I take the installation file and put it in there for future installation usage, with the exception of games), all work related to PhotoShop, websites, designing, etc have their own separate partition, all images have their own partition (including manga, h-manga, any snap shots from anime, and all images that are or will be used for PhotoShop), all INSTALLED games have their own partition separated from the Primary OS partition which I only have the OS and all programs related like PhotoShop installed, CCCP and what not. Hmm ... I think that's basically it.

That's how I handle my HDDs.

Freedom Kira:
I don't get how the costs are "too high" for RAID 5. RAID 5 is the most cost-effective solution, as you only need one hot spare disk out of any number of disks. When you back up your data, you need one disk for every other disk.

For instance, RAID 5 with four disks means you utilize the space of three disks and use one for parity. If you used four disks for storage and backup, you utilize the space of two disks and copy the same data onto the remaining two disks (like with RAID 1, just without the faster read benefits). Of course, you shouldn't use RAID 5 as a backup medium, you use it as a storage one, as it provides additional benefits of faster I/O. Use individual disks as backup media.

Of course, just having RAID 5 is not enough to provide good security against data loss. Always keep an extra backup of your most important data as necessary. RAID is, after all, just a way to improve failure tolerance.

As for myself, I just keep a RAID 5 array (4 x 1.5TB) for storage of my anime and etc. I don't have a backup of it.

tomoya-kun:
I have two RAID0 arrays of 5 x 3TB which are mirrored in case anything is lost.  I used to only have 1, but it failed.

hyperlight:

--- Quote from: Freedom Kira on March 28, 2011, 04:54:41 AM ---I don't get how the costs are "too high" for RAID 5.

--- End quote ---
When I say costs are too high, I mean costs are too high to back it up.

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