General > General Technical Chat
modern storage is crazy
<< < (10/14) > >>
BradC:

--- Quote from: mariush on April 28, 2022, 07:34:06 pm ---Seagate even had a firmware bug that cause drives to lock and no longer respond after some amount of time of operation : http://www.datarecoveryspecialists.co.uk/blog/firmware-bug-on-seagate-hard-drive
Had you bought a few drives at the same time, you'd be screwed with all these drives failing at nearly the same time
--- End quote ---

10 in a RAID-6. Thankfully the fault only manifests itself after a power cycle and these were only cycled about once every 2 years. I fortunately found out about it before they were cycled and had the opportunity to do the firmware updates on a rotating basis with no issue. As Max would say "missed it by -> <- that much".

To echo what everyone else has said. RAID is for availability, not backup.
james_s:

--- Quote from: eugene on April 29, 2022, 03:23:17 pm ---I don't. Both of my laptops have a 1.5TB total and are at less than 50% capacity (which is just about right.) But, this thread is about extremely large drives (14TB) that are bigger than most people can use.

--- End quote ---

Nobody has a 14TB drive in their laptop.

There is a huge market for massive drives, I'd love to have a couple of 14TB drives for my media server but I get by with 8TB since they're so much cheaper. If I could get 16TB in a single drive for backup use that would be great, I could backup the whole thing onto a single drive. Tons of people have media collections these days, I ripped all of my DVDs, blurays and CDs years ago and packed them all away. Lots of people into photography store many TB of RAW format images. My security cameras record onto a hard drive too, currently 4TB gets me 2-3 months of archive footage but that decreases every time I add a camera or upgrade to a higher resolution.
tooki:

--- Quote from: eugene on April 28, 2022, 01:45:23 am ---I suppose the OP is looking for some 4MB memory cards too.  :-DD

Just kidding around; I totally get his frustration. Ten years ago I bought a Synology NAS and stuffed two 2TB drives into it (RAID 1.) I thought 2 TB was ridiculous at the time and I was right; the drive is still only half full. The really sad thing is that the drives are 5.25". If one of them fails I'm not sure I could even find a replacement!

--- End quote ---
You definitely did not buy 5.25” hard disk drives for your NAS ten years ago, since they stopped making 5.25” hard disks over 22 years ago (and even then they were extraordinarily rare). Not even old stock, since the last one of those was just 19GB.

Are you sure you’re not measuring a removable  drive tray?
tooki:

--- Quote from: eugene on April 29, 2022, 03:10:19 pm ---
--- Quote from: amyk on April 29, 2022, 02:21:50 am ---2TB 5.25" drives? :wtf:

--- End quote ---

They're 3.5" I remember them looking huge... I knew they weren't 8"  :-DD

--- End quote ---
So… the standard size for desktop drives for the last 35 years? Yeah, that’s shocking…  ::)
tooki:

--- Quote from: Ranayna on April 28, 2022, 08:33:06 pm ---
--- Quote from: jpanhalt on April 28, 2022, 08:07:25 pm ---
--- Quote from: mariush on April 28, 2022, 07:34:06 pm ---No, because RAID is never for data protection. edit : I mean SHOULD never be used for data protection, or as the only data protection method.
--- End quote ---

Can you elaborate why RAID1 on separate drives should not be used for data protection?  I have been doing that for >20 years and have had at least 3 individual drive failures, but preserved my data.  (I keep OS, Desktop, and programs I use on a separate drive, which soon will be RAID1 too).

--- End quote ---
It comes down to semantics.

RAID (except obviously RAID 0) is for data availability. Some RAID levels have speed advantages compared to others or single drives.
It protects you of failures of one or more of the actual drives. Thats it.

It does not protect you against a lot of things that you would want your data to be protected from, among others:
- accidental deletion
- a cryptolocker
- Controller failure
- data corruption due to faulty ram

RAID can complement backup, but can *never* replace a proper backup.

--- End quote ---
This. So much this.



RAID. 👏 Is. 👏 Not. 👏 A. 👏 Backup!!! 👏

RAID dutifully duplicates any deletion or modification  caused by any reason, including software errors, malware, user error, as well as deletions made on purpose that you didn’t realize were wrong until later.

Additionally, RAID doesn’t protect you from damage or loss of the entire array, as in fire or theft. That’s what off-site backups are for.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod