RAID for home PC?

Question

Windows

Good to everyone!
There was a dirty trick with a home system that has RAID1 for storing photos and videos, assembled by the controller on the mother (that is, soft, in fact). Errors rained down after waking up the computer, checkdisk every time, inaccessible folders appeared on the RAID volume. I took out one disk (the array cannot be disassembled without data loss, through the management tool). I checked both disks, one at home, one at work took. The folders were repaired, but zero-sized files appeared ... I understand that the controller went crazy and wrote heresy on both disks - which ruined my data. There are backup copies, not everything is true, but that's not the point.
The question is this: I began to look at the new configuration, noticed that many motherboards do not have RAID support. At the same time, it is possible to assemble a mirror using OS - Win10. What pitfalls can be in the case of such a completely soft array? Performance issues? With data protection? How likely is data corruption from an accidental system shutdown?

Answer 1

For the home, only a soft (software) raid, and then only if it is really needed . The raid is not for data protection, but for availability. Protection - backup according to the principle 3-2-1

Answer 2

RAID for home PC?

This is a pointless thing.
If we are talking about a mirror, it makes sense when you need continuous work, so that in the event of a disk failure, your work does not stop, you would not even notice it, but while you are working, the administrator came running and changed the disk.
This is a RAID 1 task
. It has nothing to do with saving information.

Errors rained down after waking up the computer, checkdisk every time,

Have you intentionally destroyed your data?
Checkdisk is the deliberate destruction of all data that the FS considers not entirely correct - they are simply destroyed.
It is needed to restore the health of the file system. If there is valuable data on the disk, it is by no means done.

Answer 3

Colleague, yes, I know perfectly well about backups, about normal hard raids - I now have 15 servers and a small data center is spinning, with its own storages. We're not talking about that.
You did not understand the question: I can organize a home RAID in two ways: through the mother's controller, and using OS tools. Is there a difference, in practice, between these options?
As for data protection, you are wrong, I am protecting myself from disk damage, which is very important for a home screw. Backup - protects against damage to the data itself, which happens less frequently.

Answer 4

As already noted, the worst thing that can be is an on-board RAID on a half-dollar chip. Just like a guinea pig that neither grunts nor swims...
As far as data safety is concerned - raid provides only one of the many aspects of safety - it ensures data integrity in case of single disk failures. Naturally, this does not apply at all to situations with a crooked implementation such as using desktop disks in a hardware array (including an on-board chip) and vice versa - using RE media in a soft trade.
But a raid is only one of many aspects of online security. And in general, only in the case of a set of measures. At least regular backups at intervals shorter than the allowable loss of fresh data.
But ransomware, shoals of programs, etc. - they don't care about raid.
Therefore, it is budgetary and optimal for the home - a small NAS with a narrowly tuned OS, which acts as a "cloud", knows how to version and even knows how to store its own in commercial clouds.
Well, or quite budgetary - Microsoft OneDrive out of the box with win10, skydrive, dropbox, Yandex and google drives, etc.