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The importance of backups - my story - Page 3

post #21 of 64
Quote:
Originally Posted by CynicalUnicorn View Post

...What is the best way to make drive images? I have run into problems restoring from an image using the built-in Windows tool. It says that it can't find anything there.

Oopsie, I missed that one. I've seen a lot of complaints about Windows backup tool (probably called tool for good reason). I use recommend Macrium Reflect Free (do not download from homepage; this page is safer to download from). Here is a good tutorial on how to use Macrium Reflect. I set it to automatically verify my images after making them. I've had only one image fail to verify; all I had to do was run the image again and it verified after that. I find imaging to be far more reliable than System Restore (which I shut off).

Edit: While I recommend Macrium Reflect Free for most people, I actually use the Pro version.
Edited by Lady Fitzgerald - 1/9/14 at 9:19pm
     
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post #22 of 64
I couldn't sleep at night without backups, that's for sure.

My NAS has fourteen 2TB drives. Every drive is mirrored 1 to 1, none of that potentially glitchy RAID stuff (as OP encountered). So 14TB usable.

Then I have that mirrored to a portable 16TB NAS that I keep in a water-tight case!
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post #23 of 64
@Lady Fitzgerald I'll sure try out FreeFileSync. I think it'll save a lot of time. Regarding Carbonite, I don't think that's gonna work out so well since i don't have an blazing fast connection. There are also other people using the connection and i don't want to throttle it for them. I guess ill try making disk images instead. Anyway, thanks for the info thumb.gif
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post #24 of 64
Quote:
Originally Posted by FastMHz View Post

I couldn't sleep at night without backups, that's for sure...

You and me, three. Heck, I wouldn't be able to sleep during the day, either. wink.gif
Quote:
Originally Posted by FastMHz View Post

...My NAS has fourteen 2TB drives. Every drive is mirrored 1 to 1, none of that potentially glitchy RAID stuff (as OP encountered). So 14TB usable...

Nothing wrong with your setup; simplicity is usually less troublesome. There was nothing wrong with the OP's setup either; he just had a string of bad luck that, fortunately, he was prepared to recover from. Using RAID 5 actually is better utilization of the number of HDDs he has. By using only four 3TB drives, the OP was able to get 9TB of storage with pretty much the same protection you have. Had he mirrored 1 to 1 like you did, he would have had only 6TB instead of 9TB of capacity. Had you used RAID 6 (safer for larger arrays than RAID 5) instead, you would have 24TB of capacity instead of only 14TB with the pretty much the same level of safety. The only downside to RAIDs 5 & 6 over the RAID 1 you have is they are a bit slower.
Quote:
Originally Posted by FastMHz View Post

...Then I have that mirrored to a portable 16TB NAS that I keep in a water-tight case!

This is good as long as you disconnect the portable NAS between backups. To be a true backup, a backup has to be kept separate from the original. Otherwise, you are subject to loss from accidental deletions, data corruption, and malware infections.
     
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post #25 of 64
^ Yes, the portable NAS is stored unpowered in its case when not in use.
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post #26 of 64
Quote:
Originally Posted by FastMHz View Post

^ Yes, the portable NAS is stored unpowered in its case when not in use.

Excellent. You "get it".
     
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post #27 of 64
Also I don't use RAID because the rebuild time for 24TB would be insane!!
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post #28 of 64
Quote:
Originally Posted by Lady Fitzgerald View Post

Nothing wrong with your setup; simplicity is usually less troublesome. There was nothing wrong with the OP's setup either; he just had a string of bad luck that, fortunately, he was prepared to recover from. Using RAID 5 actually is better utilization of the number of HDDs he has. By using only four 3TB drives, the OP was able to get 9TB of storage with pretty much the same protection you have. Had he mirrored 1 to 1 like you did, he would have had only 6TB instead of 9TB of capacity. Had you used RAID 6 (safer for larger arrays than RAID 5) instead, you would have 24TB of capacity instead of only 14TB with the pretty much the same level of safety. The only downside to RAIDs 5 & 6 over the RAID 1 you have is they are a bit slower.

The only real problem with RAID 5 is if it is a massive array or if it is in active use. If you get a bad parity sector and try to rebuild, you're screwed. RAID 6 is a bit better since it can default to the second parity string, but I'd rather have RAID 10 for active use and 6 for archiving.
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post #29 of 64
Quote:
Originally Posted by CynicalUnicorn View Post

The only real problem with RAID 5 is if it is a massive array or if it is in active use. If you get a bad parity sector and try to rebuild, you're screwed. RAID 6 is a bit better since it can default to the second parity string, but I'd rather have RAID 10 for active use and 6 for archiving.

For four drives, Raid 6 would have been safer but at a loss in capacity. For a larger number of drives, RAID 6 is definitely in order (which is what I suggested). Even better are the nested RAIDs since they can make up for performance loss and provide more redundancy but they require more drives.

Still, no matter what RAIDs are used, separate backups are essential; the more, the merrier (up to a point). I personally feel one onsite and one offsite backup, both updated frequently, are a bare minimal backup scheme. I essentially backup my backups. I also prefer to keep my data on individual disks in my computer since doing so simplifies keeping backups and spreads my data over several drives (the old not keeping all my eggs in one basket principle). Since my backups are essentially clones, should a data disk in my machine ever die (more of an eventuality), I can disconnect the bad drive and pop a backup drive into the 3.5" hot swap bay in my computer and be up and running again in less than ten minutes, giving me plenty of time to get a replacement HDD and install it. Granted, having my drives in a RAID would have ensured continuous operation but, in exchange for a lousy 10 minute inconvenience, I can have more storage capacity in the one box. Backup drives are easily stored in a drawer and a safe deposit box (space is a huge problem for me). Making backups is as simple as plugging the appropriate backup into the hot swap bay and running FreeFileSync.
     
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Corsair AX760 Scratch built. Currently under construction at ... Logitech M525 El Cheapo Allsop hard plastic 
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post #30 of 64
This FreeFileSync program looks interesting for automated backups. I've been using a payware called Allway Sync for years and it has never failed me, so I never looked for something else.

Has anyone used both and have an opinion?
RYZEN
(14 items)
 
OFFICE PC
(12 items)
 
20TB_HOMENAS
(9 items)
 
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AMD Ryzen 7 1700X ASRock Fatal1ty X370 Professional Gaming Crossfire XFX Core Radeon R9 390X 8GB D5  Corsair Vengeance LPX 64GB DDR4 CMK64GX4M4A2400C16 
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A bunch of swappable SSDs LG BD-ROM Thermaltake CL-P039-AL12BL-A Contac Silent Windows 7 for Work, Windows 10 for Games 
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Korean 32" 4K 324K Generic mechanical rainbow LED lit eVGA 850 G2 AZZA Helios 910 CSAZ-910 
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Logitech G500 T1 24BIT Tube USB DAC 
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RYZEN
(14 items)
 
OFFICE PC
(12 items)
 
20TB_HOMENAS
(9 items)
 
CPUMotherboardGraphicsRAM
AMD Ryzen 7 1700X ASRock Fatal1ty X370 Professional Gaming Crossfire XFX Core Radeon R9 390X 8GB D5  Corsair Vengeance LPX 64GB DDR4 CMK64GX4M4A2400C16 
Hard DriveOptical DriveCoolingOS
A bunch of swappable SSDs LG BD-ROM Thermaltake CL-P039-AL12BL-A Contac Silent Windows 7 for Work, Windows 10 for Games 
MonitorKeyboardPowerCase
Korean 32" 4K 324K Generic mechanical rainbow LED lit eVGA 850 G2 AZZA Helios 910 CSAZ-910 
MouseAudio
Logitech G500 T1 24BIT Tube USB DAC 
CPUMotherboardGraphicsRAM
AMD Athlon II X2 255 ASRock 970DE3/U3S3 Radeon X300 Kingston KHX1600C9D3/4GX 
Hard DriveHard DriveHard DriveHard Drive
8x Samsung HD204UI 7x Seagate ST2000DM001 Transcend TS16GSSD25-S 2x WD WD40EZRX 
Case
AZZA Helios 
  hide details  
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Overclock.net › Forums › Components › Hard Drives & Storage › The importance of backups - my story