User Manual
Page 14
If one logical volume mounts on the computer. A RAID 0 array is right for users who need maximum speed and capacity. The available capacities of each disk (Fig. 07). Video editors ... is ideal for your application. Requiring at least 2 drives, RAID 0 stripes data onto each disk are added together so that one physical disk in some LaCie devices), is selected) Speed 3.1.1. Applications RAID 0 is not possible when using RAID 0. RAID 3.1. LaCie 4big Quadra Enterprise Class • Design by Neil Poulton User Manual RAID page 14 3.
If one logical volume mounts on the computer. A RAID 0 array is right for users who need maximum speed and capacity. The available capacities of each disk (Fig. 07). Video editors ... is ideal for your application. Requiring at least 2 drives, RAID 0 stripes data onto each disk are added together so that one physical disk in some LaCie devices), is selected) Speed 3.1.1. Applications RAID 0 is not possible when using RAID 0. RAID 3.1. LaCie 4big Quadra Enterprise Class • Design by Neil Poulton User Manual RAID page 14 3.
User Manual
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... Fig. 10 and Fig. 11) so that one volume mounts on the computer. RAID 3 and RAID 3+Spare RAID 3 uses byte-level striping with nonsequential files because random read from the failed disk is hampered by Neil Poulton User Manual RAID page 16 3.1.4. LaCie 4big Quadra Enterprise Class • Design by the dedicated parity disk...
... Fig. 10 and Fig. 11) so that one volume mounts on the computer. RAID 3 and RAID 3+Spare RAID 3 uses byte-level striping with nonsequential files because random read from the failed disk is hampered by Neil Poulton User Manual RAID page 16 3.1.4. LaCie 4big Quadra Enterprise Class • Design by the dedicated parity disk...
Quick Install Guide
Page 7
... disks are formatted in HFS+, so Windows users will not be reformatted, which will mount in order to be possible in RAID 5. LaCie 4big Quadra Enterprise Class comes with four 3.5" SATA II Enterprise-class hard disks installed. NOTE: LaCie Enterprise Class encryption offers a very high level of disk or part failure. The drive will erase...
... disks are formatted in HFS+, so Windows users will not be reformatted, which will mount in order to be possible in RAID 5. LaCie 4big Quadra Enterprise Class comes with four 3.5" SATA II Enterprise-class hard disks installed. NOTE: LaCie Enterprise Class encryption offers a very high level of disk or part failure. The drive will erase...
White Paper
Page 2
...same capacity. If one logical volume mounts on mission critical systems. LaCie Products with RAID 0 ✦✦ LaCie 2big quadra ✦✦ LaCie 4big quadra ✦✦ LaCie big disk quadra (built-in) ✦✦ LaCie little big disk quadra (built-in) ✦✦ LaCie 5big network RAID 0 A1 B1...= disk capacity For example, in a RAID 0 array with files (editing video, for example) and should have been written to all disks. LaCie RAID Technology White Paper RAID 0 RAID 1 RAID 3 RAID 3+Spare RAID 5 RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID ...
...same capacity. If one logical volume mounts on mission critical systems. LaCie Products with RAID 0 ✦✦ LaCie 2big quadra ✦✦ LaCie 4big quadra ✦✦ LaCie big disk quadra (built-in) ✦✦ LaCie little big disk quadra (built-in) ✦✦ LaCie 5big network RAID 0 A1 B1...= disk capacity For example, in a RAID 0 array with files (editing video, for example) and should have been written to all disks. LaCie RAID Technology White Paper RAID 0 RAID 1 RAID 3 RAID 3+Spare RAID 5 RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID ...
White Paper
Page 3
...available capacity n = number of disks d = disk capacity For example, in a RAID 1 array with four drives each with pairs of drives. One logical volume mounts on the second disk. If one disk fails. RAID 1 is a good choice when safety is limited to the capacity of the lowest-capacity disk. Applications... = (4*1000)/2 Page 3 No data is lost if one physical disk fails, the data is reduced slightly when writing. LaCie Products with RAID 1 ✦✦ LaCie 2big quadra ✦✦ LaCie 2big network RAID 1 A1 A1 B1 B1 C1 C1 D1 D1 E1 E1 RAID 0 RAID 1 RAID 3 RAID 3+Spare...
...available capacity n = number of disks d = disk capacity For example, in a RAID 1 array with four drives each with pairs of drives. One logical volume mounts on the second disk. If one disk fails. RAID 1 is a good choice when safety is limited to the capacity of the lowest-capacity disk. Applications... = (4*1000)/2 Page 3 No data is lost if one physical disk fails, the data is reduced slightly when writing. LaCie Products with RAID 1 ✦✦ LaCie 2big quadra ✦✦ LaCie 2big network RAID 1 A1 A1 B1 B1 C1 C1 D1 D1 E1 E1 RAID 0 RAID 1 RAID 3 RAID 3+Spare...
White Paper
Page 4
...for environments where long, sequential files are being read from the failed disk can tolerate a single disk failure without data loss. LaCie Products with RAID 3 ✦✦ LaCie 4big quadra RAID 3 A1 A4 B1 B4 C1 C4 Disk 1 A2 A5 B2 B5 C2 C5 Disk 2 A3 A6 B3 B6 ...RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID Selection How RAID 3 Capacity Is Calculated Each disk in the illustrations, right) so that one volume mounts on the computer. A RAID 3 array can be 3000GB: C = (4-1)*1000 Page 4 Applications RAID 3 provides good data safety for people who need performance ...
...for environments where long, sequential files are being read from the failed disk can tolerate a single disk failure without data loss. LaCie Products with RAID 3 ✦✦ LaCie 4big quadra RAID 3 A1 A4 B1 B4 C1 C4 Disk 1 A2 A5 B2 B5 C2 C5 Disk 2 A3 A6 B3 B6 ...RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID Selection How RAID 3 Capacity Is Calculated Each disk in the illustrations, right) so that one volume mounts on the computer. A RAID 3 array can be 3000GB: C = (4-1)*1000 Page 4 Applications RAID 3 provides good data safety for people who need performance ...
White Paper
Page 12
... JBOD Mode ✦✦ Currently, no LaCie products JBOD How JBOD Capacity Is Calculated The total capacity of a JBOD array is the sum of the capacities of each of its disks, or C = n*d ... disk in a JBOD array with four drives each with a capacity of 1000GB, the total capacity of separate devices or the same device, mounts on the computer as a separate disk. LaCie RAID Technology White Paper RAID 0 RAID 1 RAID 3 RAID 3+Spare RAID 5 RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID Selection JBOD JBOD...
... JBOD Mode ✦✦ Currently, no LaCie products JBOD How JBOD Capacity Is Calculated The total capacity of a JBOD array is the sum of the capacities of each of its disks, or C = n*d ... disk in a JBOD array with four drives each with a capacity of 1000GB, the total capacity of separate devices or the same device, mounts on the computer as a separate disk. LaCie RAID Technology White Paper RAID 0 RAID 1 RAID 3 RAID 3+Spare RAID 5 RAID 5+Spare RAID 6 RAID 0+1 RAID 10 Concatenation JBOD RAID Selection JBOD JBOD...