I Nearly Lost All of My Data
kevq.uk
I Nearly Lost All of My Data
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Re: I Nearly Lost All of My Data
#2Z ... F ... S.
And at least Raid-Z. Raid-5 and Raid-6 are now at probability of failure levels that your rebuild is likely to throw an error.
Re: I Nearly Lost All of My Data
#3I have looked and looked since 1998, tried rsync, RAIDs, striped drives, ATA over Ethernet, lvm, ZFS, all sorts of things.
What finally clicked for me, is https://www.greyhole.net
It's like magic. Decide how much redundancy you want. Then just add drives to it. It balances files automatically across drives. You can have remote drives in the mix.
What it is not good at, is many small files. But for my use, media files and backups (tar archives) it's a breeze. And the files are stored as normal file on the drives it distributes too, so there is nothing complicated to dig into should disaster strike. (Not that it has happened to me.)
No affiliation, just finally in a Zen state of mind when it comes to my home NAS.
Next step - make sure all of that is backed up off site too, but that is another thing altogether...
Re: I Nearly Lost All of My Data
#4TL;DR: a power surge killed my PSU and maybe my motherboard, causing me to freak out and btw I don't have any cold storage.
I'll bet this guy did not have a surge protector in front of his Synology PSU.
Re: I Nearly Lost All of My Data
#5Z ... F ... S. And at least Raid-Z. Raid-5 and Raid-6 are now at probability of failure levels that your rebuild is likely to throw an error.
ZFS is great, but won't help if there's a power surge that fries all the disks at once. To prevent that you'll want to store snapshots remotely somewhere.
Re: I Nearly Lost All of My Data
#6>I don’t know what happened for sure, but I think it may have been a power surge that fried the boards on both the Synology and the USB, as they were plugged in to the same socket.
He didn't have a surge protector? Sweet Jesus. I don't plug my backed-up PC into anything not surge protected.
Re: I Nearly Lost All of My Data
#7Z ... F ... S. And at least Raid-Z. Raid-5 and Raid-6 are now at probability of failure levels that your rebuild is likely to throw an error.
ZFS is great, but won't help if there's a power surge that fries all the disks at once. To prevent that you'll want to store snapshots remotely somewhere.
To prevent that you'll want to s̶t̶o̶r̶e̶ ̶s̶n̶a̶p̶s̶h̶o̶t̶s̶ ̶r̶e̶m̶o̶t̶e̶l̶y̶ ̶s̶o̶m̶e̶w̶h̶e̶r̶e̶.̶ use a surge protector
Re: I Nearly Lost All of My Data
#8Sounds like a UPS with the standard protections is going to be somewhere in your future... Just not somewhere a cleaning lady can touch it.
Re: I Nearly Lost All of My Data
#9I have looked and looked since 1998, tried rsync, RAIDs, striped drives, ATA over Ethernet, lvm, ZFS, all sorts of things. What finally clicked for me, is https://www.greyhole.net It's like magic. Decide how much redundancy you want. Then just add drives to it. It balances files automatically across drives. You can have remote drives in the mix. What it is not good at, is many small files. But for my use, media files…
It's a really tough sell for most people when you tell them they need to have at least two copies of their data if they care about it. The vast majority of people will rather "take their chances." Usually that means another $100-500 bucks for most people.
Re: I Nearly Lost All of My Data
#10Earlier quoted context omitted.
ZFS is great, but won't help if there's a power surge that fries all the disks at once. To prevent that you'll want to store snapshots remotely somewhere.
To prevent that you'll want to s̶t̶o̶r̶e̶ ̶s̶n̶a̶p̶s̶h̶o̶t̶s̶ ̶r̶e̶m̶o̶t̶e̶l̶y̶ ̶s̶o̶m̶e̶w̶h̶e̶r̶e̶.̶ use a surge protector
Don't forget to replace your surge protector on an annual basis (or more frequently if you have really dirty power). Also, you can have a nasty fault in your PSU that fries everything also (If anyone knows of a surge protector that sits between the power supply and the motherboard, I'd really like to get one).