The failure modes I consider most probable at my home are a whole-house power surge, and a loss of structure (fire, natural disaster). With a 1 Gbps (synchronous) FTTH connection, and a Backblaze subscription, that's about all the peace of mind I need!
I Nearly Lost All of My Data
91–100 of 262 posts
Re: I Nearly Lost All of My Data
#92I just don't understand rolling your own backup drives in 2018 unless you're up to something nefarious. I rest peacefully knowing my data will never be lost by Dropbox, and the immediate backup means I don't have to mess with slow, periodic all-at-once backups.
It's much cheaper to build your own than to use cloud storage esecially a secondary storage service like Dropbox. Even blackblaze B2 is $60/TB/year vs you can buy an 8TB HDD on Ebay for ~$200 and if the drive lasts 5 years that works out to be $5/TB/year and adding one or two redudent drives is still much cheaper.
I guess that's a legitimate reason, though the tradeoff still doesn't seem worth it unless you have massive amounts of data
Re: I Nearly Lost All of My Data
#93I see some terrible backup strategies here. 1. Backups should not be on a single drive. 2. Backups without checksums will result in corruption. 3. Offsite is a must. 4. Unencrypted off site backup means someone already copied your data. 5. Encrypted offsite backups should have forward secrecy. So different keys for each file and keys file gets backed up encrypted. My backup strategy: File server runs zfs raidz with D…
> Encrypted offsite backups should have forward secrecy. So different keys for each file and keys file gets backed up encrypted. Any references on PFS for backups? Was there no existing OSS backup solution that implements PFS?
I'm not sure why you'd want PFS for backups. The idea of backups is that you have a history (not just a simple mirror) and so having PFS intentionally renders older backups unusable (unless you're storing all the keys -- in which case you have somewhat defeated the point of PFS).
Now, PFS would allow you to handle key compromise by making future backups unreadable. But there are other solutions for this (such as upgradeable encryption).
Re: I Nearly Lost All of My Data
#944 disk RAID what? 4 disk RAID 1 or RAID 10 or... It'd make a difference.
The article mentions that it's RAID 5:
> My Synology has 4 x 1TB disks in a RAID 5
Re: I Nearly Lost All of My Data
#95If you have 4TB of data saved at home you are a hoarder. Why do you have that much stuff. I don't have any data at home that I would miss very much if I lost it.
Re: I Nearly Lost All of My Data
#96I've always thought of a NAS as high speed local storage with a little redundancy in raid, but I'd never treat it as a backup solution. Only because then all my data is under one roof. Fire, earthquake, flood or other local event that's big enough and all my data is gone. I'm lazy so I haven't setup anything fancy but backblaze and dropbox do all my off site backup for me. It's very cheap. 10 years of backblaze would be cheaper than a NAS.
Re: I Nearly Lost All of My Data
#97If you have 4TB of data saved at home you are a hoarder. Why do you have that much stuff. I don't have any data at home that I would miss very much if I lost it.
Family photos and videos can take up a lot of space. Also it sounds like the authors work is backed up to this NAS as well.
I wouldn't have that much to backup but some do, depending on their hobbies and work.
Re: I Nearly Lost All of My Data
#98You need one copy somewhere else! What if there's a break-in or the roof leaks or whatever? My low-tech solution is two external drives, one of which is at my Mom's place and gets swapped every month or two.
This solution is great because of its simplicity. Keeping a second drive on your desk at work is also great if mom is too far away.
Re: I Nearly Lost All of My Data
#99Many years ago I watched someone stuff the DVDRW (remember them?) which contained all his stuff into a work PC’s pioneer slot loader drive to get some music off it. We stood there and the drive went bzzt, clang, bzzt, clang then sped up way faster than it was supposed to go. This was followed by a large bang and bits of DVDRW coming flying out and then a crunching noise. From this I learned about single points of fai…
But define 'plain file system' - is that NTFS? ext4? ZFS? FAT32? HFS? UFS? ISO9660? TAR? cpio? Some of these are more complicated than others, and all of them have catastrophic failure modes...
Re: I Nearly Lost All of My Data
#100I just don't understand rolling your own backup drives in 2018 unless you're up to something nefarious. I rest peacefully knowing my data will never be lost by Dropbox, and the immediate backup means I don't have to mess with slow, periodic all-at-once backups.
3-2-1 Backup should always be in your mind.
3 Copies
2 different Media (or vendors)
1 Offsite / Offline
There are all kinds of things I could think of that may cause problems with your dropbox plans but what would keep me up at night is all the ways I could not think of
never trust a single vendor, a single NAS, a single anything... NEVER