131–140 of 262 posts
- originals: 2TB google drive + 50GB icloud
- backup #1 (autosync from drive/icloud): 4TB internal drive
- backup #2 (cold storage): 4TB external drive
> What are the chances of both a 4 disk RAID failing AND a USB drive at the same time? Probably close to 100% if your house catches on fire.
Earlier quoted context omitted.
And here's your recurring reminder that all cloud storage services fingerprint your uploaded files looking for TOS violations. If you haven't encrypted your backups first you are at the will of the service you are using.
I use Arq to backup, and it’s a lovely little program that isn’t a resource hog, and handles the encryption. I use it to back everything up, a copy to a removable drive, a copy that gets updated every day online, and another once a month online on a seperate server. It seems to work well, and it really is painless,after the initial seeding.
Things that jumped out at me from this: First, the USB external is probably OK except that its USB circuitry has taken a power hit. If it's a standard SATA drive inside that could probably be shucked and accessed. Counter: Some of these have drives that are no longer SATA but have a bunch of the USB connectivity built into the drive. At that point, you'd probably be looking at a few hundred $ of data recovery costs (…
http://www.raidtips.com/raid5-ure.aspx
A bit of annecdata: I've been running raid5 and raid6 for years without issues on 4 and 8TB drives, scrubs come back successful every month despite claimed error rates, the drive deaths I've had have been sudden whole drive failures or write failures to a large portion of the drive.
For those that don't know, borg is a backup utility[1] that has been called the "holy grail of backups"[2].
It takes your plaintext files and directories, chops them into gpg-encrypted chunks with encrypted, random filenames, and will upload (and maintain) them, with an efficient, changes-only update, to any SFTP/SSH capable server.
My understanding is that the reason people are using borg instead of duplicity is that duplicity forces you to re-upload your entire backup set every month or two or three, depending on how often you update ... and borg just lets you keep updating the remote copy forever.
The best solution I found as an alternative to an off-site copy is to set up a USB drive and something like a Raspberry Pi in my car. When I pull into the garage, the house server senses it and syncs new data to it. This can be supplemented further by having it auto sync to a computer in your office whenever you pull into work. Add in some monitoring so you can get a phone alert if any of the synced copies are more t…
I use syncthing for syncing when my raspberry pi joins a specific BSSID, sync starts. It's susceptible to macspoofing but I hope my Pi won't join a spoofed network.
Crashplan killed off their consumer plan a while ago, so I ended up moving to their business plan at double the price. In my case even at that price it was still worth it considering the amount of storage I'm using.
Anyone aware of other services offering unlimited storage for a single user? I know Dropbox, Google Drive, and OneDrive all offer unlimited storage in their business plans, but they all require a certain number of users before the unlimited storage kicks in.
Hard to believe we are 129 comments into this and there are zero mentions of 'borg' in the comment threads ... For those that don't know, borg is a backup utility[1] that has been called the "holy grail of backups"[2]. It takes your plaintext files and directories, chops them into gpg-encrypted chunks with encrypted, random filenames, and will upload (and maintain) them, with an efficient, changes-only update, to any…
Earlier quoted context omitted.
> 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?
Most encrypted backup solutions are really bad with protecting keys. Fixed ivs are ok for one file. Not ok for possibly millions of small files. Basically exposed your private key along with your backup.
Earlier quoted context omitted.
Does the RaspberryPi have enough CPU for disk encryption?
I am trying to find cheaper device between NUC and Pi. Lot fewer choices are available. NUC is expensive. I wonder when will 8core ARM based NUC will arrive in the market. No idea is NUC can be powered by Xiomi Mi 2i powerbank but a Raspberry Pi can be Priorities: 1. Gigabyte ethernet 2. Small form factor NUC or smaller. 3. 8+ cores 4. Very low power consumption
I have experimented with a very large number of devices between NUC and Pi.
While the best processors for such devices would be ARM processors (with Cortex-A76 or Cortex-A75), nobody offers adequate devices.
You can find only devices with obsolete slow ARM processors, e.g. RK3399, which are much faster than Pi but much slower than x86, or you can find development systems or modules with modern smartphone ARM processors, but those are much more expensive than a faster Intel NUC.
Therefore, for the moment the only sensible choices are devices with either Intel Gemini Lake processors or with Intel Y-Series processors.
The devices with Intel Y-Series processors are much faster, but they are also more expensive. While Zotac has presented at CES one such device, its price and time of availability are unknown.
For now, the only device available with Y-Series is "LattePanda Alpha". Considering that its price includes 8 GB RAM, 64 GB flash and the Windows licence (even if I wiped it and I installed Linux) it is cheaper than an i3 NUC where at the same price you have no memory.
It has everything a NUC has, except that it has one less USB port (it has 1 C + 3 A, while some NUCs have 1 C + 4 A). I have installed in its 2 M.2 connectors a NVMe SSD and a second Ethernet interface. The speed was excellent, because the Kaby Lake CPU was configured for 7 W TDP with 15 W TDP for the first 28 seconds. The included fan does not start unless you run a heavy workload and even then it is silent. The size is smaller than a NUC but larger than a pico-ITX board.
If you want something cheaper, or if you want, like me, both full-size DisplayPort & HDMI connectors (not DisplayPort on USB C), then you must choose a Gemini Lake device, i.e. either Zotac ZBOX PI335 Gemini Lake (with N4100, not to be confused with the obsolete ZBOX PI335 with N3350) or an ODROID H2.
The ODROID H2 is faster and possibly cheaper (depending on the memory you buy or you already have; ZBOX has soldered memory), but it is larger. ODROID H2 is NUC-sized while PI335 Gemini Lake is pico-ITX sized. ODROID H2 has 2 Ethernet, but PI335 Gemini Lake includes WiFi & BT and it comes in a closed case which will protect it in dusty environments (both have passive cooling). PI335-GK uses a 5 V power supply, so it should be easy to be powered from a power bank. The CPU TDP is configured for steady state 6 W and 15 W for the first 28 seconds. The idle CPU power is less than 2 W. I have not measured the total idle power of the computer. With the CPU halted, the power consumption should be much less, but I have not measured it.
Gemini Lake has a speed just a little less than a Snapdragon 845, but it is much faster than older ARM processors and than older Atom processors.