I wonder if you could kindly assist with a recommendation of the most reliable Raid 1 mirroring setup, with current implementation by BIOS, an option of Windows 10 Pro, or using Storage Spaces in Windows. The background is that my primary aim is to ensure a backup of my precious photograph collection and other user data that is kept on my hard drive.
I believe that the Raid was created within the BIOS but have no technical knowledge of how that was done or how to change it. But, twice when updating Windows it has corrupted my Raid settings.
The most recent challenge was done last month or so when Widows 10 Home update screwed things up. My Raid is however broken in that what was my D drive comprising two hard disks has been changed to an F drive and is reported as one drive is fine with the other is offline, having a signature collision.
Disk 3 - offline as it has a signature collision with another drive this is my other hard drive which should be operating in Raid. Before I got to this stage, within Windows I had noted that the drives were as follows within Windows file explorer:.
F: D Raid. I wanted to relabel this properly as the D drive again and not F drive as I have applications which look for data on the D drive but could no longer find it e. Adobe Lightroom. I could not relabel it in practice however as Windows would not let me, I suspect because of the offline nature of the Raid status. D: Blu-Ray. I relabelled this as the G drive to make the D label available for the Raid drive.
What I need to occur is that the raid is repaired or replaced with another mirroring system such that both hard disks are operating together and then I can relabel it as the D drive again — shortcuts set up to D drive and my Adobe Lightroom catalogue refers to D drive as well. I looked in the Bios but was too unsure of what I was doing so left any changes well alone. I don't want a future Windows 10 upgrade to screw things up again. Note that I do occasionally do a manual backup to a portable hard drive but that is a lot of hassle itself so only do it occasionally.
Was this reply helpful? Hence, its data reliability is the lowest one. RAID 1 is also called mirrored volume. It also needs at least two drives usually an even number. It realizes data redundancy through making a disk back up the data on another disk, which sequentially causes situation that the usable space is only a half of the disk array.
Besides, it can also improve the reading performance because it can read data from the backup drive when the original drive is busy. However, the writing speed is slowed down because the backup and error verification. However, it also only uses a half space of disk array. Besides, it will also cause higher CPU usage. RAID 5 needs at least three drives. It will access data and parity check information crosswise on all drives. However, the writing speed of RAID 5 is slower than that of a single disk because RAID 5 will read old data and write extra parity check information when writing data so called write performance impairments.
Storage Spaces is a Windows built-in technology. Users can utilize this technology to group multiple drives together into a storage pool and then use the capacity of the pool to create virtual drives named storage spaces. This technology can help users to protect their data from drive failure through mirroring data and extend storage space through adding drivers to PC. It can verify data corruption automatically and try to recover it. At the same time, there are performance improvements in dealing with hundreds of millions of files.
Simple no resiliency : This type needs at least one drive and will write one copy of data. So, it won't protect data from drive failure click to know how to recover data from a failed hard drive. Two-way mirror: It needs at least two drives and will write two copies of data and it will protect data from a single drive failure.
It is similar to RAID 1. Three-way mirror: It needs at least five drives and will write three copies of data. The usable space is a third of the total capacity. But it will protect data from two simultaneous drive failures. Parity: It needs at least three drives and writes data with parity information. It will protect data from a single drive failure. It is similar to RAID 5.
Let's see the difference of Windows 10 Storage Spaces vs. The number of sockets is determined by physical RAID controller. Generally speaking, operating system treats RAID as one disk. What do I need besides the drives? How many drives should the raid be? Any advice is appreciated. This kind of depends on what you're trying to keep redundant and what degree of safety you want, and what exactly you're looking for in "safety" just availability?
And RAID doesn't help beyond drive failure. If you have a controller failure you're going to have an availability issue. Many work fine, but some do have issues with this, since they're meant to be used for portability and not as a workhorse drive people used to play with making older iPods into RAIDs and discovered the drives died sooner, also I've read of external drives that would try to power down at inopportune moments and have spin-up issues.
If you're a home user just looking for some RAID setup for some important home data and not customer or business data, I'd look at getting a cheap computer with a couple large drives and turn it into a NAS device with something like FreeNAS. It becomes a network appliance with a web interface for configuring it. Then set it up with mirroring.
Also there are papers out there warning about the dangers of RAID if you really want heavy-duty stuff and large disks now, because as drives get bigger it's becoming more likely that you'll hit the point where you will have a drive failure in a cluster and not know it until you're trying to recover from a total drive failure i. You slap in a new drive to replace drive C. As the volume recovers data from A and B to rebuild C, the system discovers an unreadable spot on drive B.
Trust me. It sucks. And with drive sizes increasing to ridiculously huge sizes this is more and more common, leading people to recommend RAID 10 or better if you're running servers that need to be available as much as possible and downplaying using RAID 5. In other words Another thing to consider: if you're not using hardware RAID like 3ware's cards, you're going to have more difficulty figuring out which drive is dead unless you have a system in place for knowing that drive A is labeled , so when the RAID system you're using goes ploof you can figure out which physical drive is the issue and swap the RIGHT one.
Many hardware controllers for RAID will have blinkies to warn you of drive giving problems. For software raid, it can be a crapshoot unless you have a plan ahead of time. If you have data that you need to be careful to keep available, I'd look first at backup strategy.
RAID is useless there. If you delete your important doc in RAID it's gone immediately. If someone hacks it, it's gone immediately. If something corrupts it, RAID will dutifully duplicate the corruption. RAID is only good for being able to use the system if something fries a drive or if you're looking to play with performance with RAID 0.
Backups are what can save your bacon when a system fries or data corrupts. You can buy one of those NAS units, which are purpose built for this sort of stuff, and set it up in RAID6 or RAID10 if you want redundancy, so even if a drive fails you can replace it and rebuild it with relative ease. These drives are dirt cheap, in fact sometimes cheaper than bulk internal drives. Unfortunately there is little to be gained performance wise, as multiple drives share the same USB bandwith, but at least I feel a little safer than with single drives.
We backup our data weekly to Tape, but for weekday backups and 'extra' backups we prefer disk. For example we backup our exchange server weekdays in full, and we do all of these to a disk backup system. We needed cheap disk storage, without the expense of server grade equipment. To accomplish this we purchased an.
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