I need to decide myself between RAID5 and RAID6.
The servers have a hardware-RAID controller and 6 drives each.
The drives are RE3 enterprise western digital 1TB drives. The data sheet says MTTF = 1.2Mio hours, Bit error rate = 1/10^15
On another Server there are even 6 Seagate SAS Drives (172GB each) with MTTF = 1.6Mio hours, Bit error rate = 1/10^16.
I have about 15gb of data that I wish to copy from my NTFS external harddrive connected via USB to the ext4 partition of my harddrive. While copying from my laptop's NTFS harddrive the rate was about 20mb/s. In the opposite direction, however, the rate is about 3mb/s. Am I missing something important or is there something wrong?
Hardware requirements:
One Hard-drive for the OS
I used Western Digital Velocity Raptor 10000rpm 150GB (great performance) $160
Two Hard-drives for /home
I used my existing two 500GB Segate 7200rpm @$60 allup $120
Step 1:
Ensure correct BIOS boot sequence: first DVD-Drive, second OS Drive
I'v been working on recovering data off of a 500 gig Western Digital USB hard drive. The drive is formatted with Macs HFS. The drive was about to fail and I was getting SMART errors all over the place.
Hello,
I've searched the forums and have found somewhat relevant information pertaining to older distros of ubuntu, but none for 12.04. I understand that Western Digital external drives are not kind to linux. I was just curious if anyone knew of any fairly simple (I'm new to ubuntu and not a skilled computer guy) resolutions.
Trying to backup data from hard drive before reloading windows following some issue with its load.
Having trouble with the file transfer to a USB3/2 external hard drive NTFS. Getting transfer speed of about 116.7kB/sec. In other words its taking about 5 hours to tranfer 1.4GB. I've got about 80GB to go. So the transfer is going to take 11days.
as embarrassing as it sounds I managed to dd a debian iso to an external hd instead of my usb pen drive.
now my 1.5 tb western digital has 1 700mb partition named debian and the rest is unallocated space.
if I understand correctly how dd works the first 700mb of data in the disc are lost since they have been overwritten.
is there any way to save the rest?
//the disk was ntfs partitioned
If you're a hardware enthusiast then you will have no doubt come across Western Digital's Velociraptor range of high-performance hard drives. Well, these beasts have evolved!
Quote:sysadmin01 wrote:Hi there,I'm having an issue mounting a 3TB NTFS partition on a Western Digital drive connected via USB. This... [by pschaff]