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Software Raid 1 - annoying problem - Page 3

post #21 of 26
Quote:
Originally Posted by Pandora51 View Post

But what is with "TLER"? I thought it isn´t good for single drives or isnt that important?

Time-Limited Error Recovery. Basically, it limits the amount of time the drive is allowed to recover from read/write errors as RAID controllers might drop the drives if they take too long to respond.
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post #22 of 26
Quote:
Originally Posted by Pandora51 View Post

No I have no UPS. Is that bad? rolleyes.gif
It isn´t like I need my data super ultra safe. I just thought Raid 1 is a good way to reduce backups and all that stuff and increase the performance at the same time.

I have always run a UPS with all of my builds, simply because it eliminates (or reduces greatly) the opportunity for data loss or operating system corruption in the event of an unexpected power failure, kids or cat tripping over power cords, whatever. Also, with a UPS, you can more safely enable write-back caching with software RAID and individual drives to boost performance without worrying about a power failure during a write, which would SURELY corrupt the written data.

RAID 1 is no substitute for good backup regimen. Most data loss these days occurs as a result of malicious software (Trojans/viruses) and user error, and secondarily from failed hardware. RAID 1 will protect you from a single drive failure, but it will not protect against a power surge, accidental file deletion, viruses, etc. You need a genuine backup strategy in place for that.



Are you by chance running Windows 8? There is something new in Windows 8 (and Server 2012) called Storage Spaces that will let you mirror your disks with high performance. Call it software RAID if you want, but the writes and reads are handled by the OS and optimized for performance AND reliability. And, if you have a UPS, you can safely enable write-back caching on all disks and the performance is really pretty good ... comparable to a hardware RAID controller for RAID 1, and close to hardware RAID for parity-based volumes.

Greg
post #23 of 26
Quote:
Originally Posted by hammong View Post

I have always run a UPS with all of my builds, simply because it eliminates (or reduces greatly) the opportunity for data loss or operating system corruption in the event of an unexpected power failure, kids or cat tripping over power cords, whatever. Also, with a UPS, you can more safely enable write-back caching with software RAID and individual drives to boost performance without worrying about a power failure during a write, which would SURELY corrupt the written data.

RAID 1 is no substitute for good backup regimen. Most data loss these days occurs as a result of malicious software (Trojans/viruses) and user error, and secondarily from failed hardware. RAID 1 will protect you from a single drive failure, but it will not protect against a power surge, accidental file deletion, viruses, etc. You need a genuine backup strategy in place for that.



Are you by chance running Windows 8? There is something new in Windows 8 (and Server 2012) called Storage Spaces that will let you mirror your disks with high performance. Call it software RAID if you want, but the writes and reads are handled by the OS and optimized for performance AND reliability. And, if you have a UPS, you can safely enable write-back caching on all disks and the performance is really pretty good ... comparable to a hardware RAID controller for RAID 1, and close to hardware RAID for parity-based volumes.

Greg

I must agree with the new storage pools in Windows 8/Server 2012 - definitely give them a go!
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post #24 of 26
Thread Starter 
Well thanks for the answers.
It seems like Windows 8 is the best way to get good results and I will get it faster than I thought i would. I hope I can get Windows 8 reduced or for free through my studies. In the mean time I will use the Reds as Single Drives or in Raid 0.
Do I need a special Edition or can every Win8 version do this?

The UPS is really nice. Thanks but I dont think I wiil get one soon. Its not important enough (for me) to invest here.

But this is all good to hear. I already thought there is no other solution biggrin.gif
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post #25 of 26
Windows 8 only comes in two favors - "regular" and "Pro" - both editions have Storage Spaces. Pro adds Bitlocker security and compatibility with Windows Domains/Active Directory, and permits the use of Remote Desktop to remotely take over or control your PC. If you don't need the Pro security features, the regular Windows 8 will do just fine.

Greg
post #26 of 26
Thread Starter 
Quote:
Originally Posted by hammong View Post

Windows 8 only comes in two favors - "regular" and "Pro" - both editions have Storage Spaces. Pro adds Bitlocker security and compatibility with Windows Domains/Active Directory, and permits the use of Remote Desktop to remotely take over or control your PC. If you don't need the Pro security features, the regular Windows 8 will do just fine.

Greg

Thanks!
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