*THE HULL TRUTH is the world's largest FREE network for the discussion of Boating & Fishing. Whether you're researching a new boat, or are a seasoned Captain, you'll find The Hull Truth Boating & Fishing Message Forum contains a wealth of information from Boaters and Sportfishermen around the world.
Welcome to the updated THT!
If you are having trouble signing in, please email feedback@thehulltruth.com with your username and we will help you. We thank you for your patience as we help you access the new site!
Random Quote: Everyday I beat my own previous record for number of consecutive days I have stayed alive
I just purchased a 10TB RAID. It was factory set to 0. I change it to level 5 and rebuilt the drives. Can someone explain to me why it takes 34 hours to reconfigure the drives? Per the manual that time is correct. I would just like to understand why it takes so long and what's its doing. Their are (5) 2TB drives in the unit
__________________ God doesn't bother me. His fan clubs do.
A mind is like a parachute, it only works when its open
it takes a while to stripe every drive for level 5. Been a while since I fooled with any of this stuff, but used to build raid 5 systems quite a bit 5-10 yrs ago. Back then, the drives were a lot smaller. The first systems I built used 9 GB drives (biggest you could get) that were full height drives---HUGE! Haven't done this stuff for a while so the biggest drives I've ever used were 72 GB drives and the biggest array was a crap load of those to build a 1TB, raid 5 array. Only used to take a few hours to stripe the drives in those arrays, but as I said, they were much smaller drives.
You do know that since you went to raid 5, you have lost the capacity of 1 drive? i.e., your system now has only 8 TB of storage space.
it takes a while to stripe every drive for level 5. Been a while since I fooled with any of this stuff, but used to build raid 5 systems quite a bit 5-10 yrs ago. Back then, the drives were a lot smaller. The first systems I built used 9 GB drives (biggest you could get) that were full height drives---HUGE! Haven't done this stuff for a while so the biggest drives I've ever used were 72 GB drives and the biggest array was a crap load of those to build a 1TB, raid 5 array. Only used to take a few hours to stripe the drives in those arrays, but as I said, they were much smaller drives.
You do know that since you went to raid 5, you have lost the capacity of 1 drive? i.e., your system now has only 8 TB of storage space.
Thanks, correct 7.74TB to be exact.
__________________ God doesn't bother me. His fan clubs do.
A mind is like a parachute, it only works when its open
3x. in a nutshell, that's TONS of space to format. But once running you should get speedy read write. Sounds like you're in good shape if the manual agrees.
I can't wait to see what happens when we get the new 72TB System
I've been running a raid system for quite some time so I've been following along here. Where's this 72 TB System come into play here? And what would someone need 72 TB for? To run a picture holding website?
What in the Sam Hell are you guy's talking about??!!
Computer hard drives.
Never understood the RAID 0. It should be AID 0.
__________________
"Destination"
2005 Contender 27 Yamaha F225's
Actually, You DON'T disagree with me. You THINK you disagree with me, but you're mistaken. You're simply experiencing an illusion caused by the limits of your comprehension. -Dilbert
You would be better served to go Raid 1. I rarely recommend Raid 5 anymore. A mirrored Raid 1 is inherently reliable with minimal complexity because you have a complete mirrored copy on each hard drive pair. It also provides improved read performance. With the low cost of storage today, Raid 5 has little point imho.
raid 5 is n-1 instead of 2n for raid 1. I don't know of anyone who recommend raid 1 for anything but a home solution where you don't need larger numbers.
For example, I use raid 1 as well as online backup for my home machines as 2x 2tb drives ( 2 tb useable) is plenty and I didn't feel the need to spin the mandatory minimum of the third drive for raid 5. If I had a rack server with 12 bays, raid 5 would yield 22tb (12-1 useable space x 2 tb) while raid 1 would only yield 12 tb. That's a huge difference in capacity which nearly doubles the storage costs.
raid 5 is n-1 instead of 2n for raid 1. I don't know of anyone who recommend raid 1 for anything but a home solution where you don't need larger numbers.
For example, I use raid 1 as well as online backup for my home machines as 2x 2tb drives ( 2 tb useable) is plenty and I didn't feel the need to spin the mandatory minimum of the third drive for raid 5. If I had a rack server with 12 bays, raid 5 would yield 22tb (12-1 useable space x 2 tb) while raid 1 would only yield 12 tb. That's a huge difference in capacity which nearly doubles the storage costs.
In other words, simply multiply the coefficient times the byproduct of the reciprocal denominator's subroutine coaxes ...
nutshell:
RAID 1 requires twice as much space as the data is written to two drives simultaneously.
RAID 5 requires that one drive in the set be used to store information on how to rebuild the rest of the data if one drive fails. You need at least 3 drives to start but can continue to add drives to scale up the array.
I've been running a raid system for quite some time so I've been following along here. Where's this 72 TB System come into play here? And what would someone need 72 TB for? To run a picture holding website?
I run the prepress department for a large printing company. It used to be we could easily backup jobs on CD, then DVD then tape. Most of the problem is we need to keep our files for 36-48 months. Some of them are 2 gigs. Graphic files can be very very large, even compressing them they still take up lots of room.
__________________ God doesn't bother me. His fan clubs do.
A mind is like a parachute, it only works when its open
RAID Backup 
And what would someone need 72 TB for? To run a picture holding website? 
IGFA Certified Observer
