diff --git a/src/tools/raid-calculator/raid-calculator.service.ts b/src/tools/raid-calculator/raid-calculator.service.ts
index b57b350d..acf398b3 100644
--- a/src/tools/raid-calculator/raid-calculator.service.ts
+++ b/src/tools/raid-calculator/raid-calculator.service.ts
@@ -2,7 +2,7 @@ export { raidCalculations };
const raidCalculations = {
raid_0: {
- about: 'RAID 0 splits data evenly across 2 or more disks with redunancy or fault tolerance. More info: Wikipedia',
+ about: 'RAID 0 the splits data evenly across 2 or more disks without redunancy or fault tolerance creating one large storage space. More info: Wikipedia',
requirements: 'RAID 0 requires at least 1 disk',
validate: function(num, size){
return num > 1
@@ -19,7 +19,7 @@ const raidCalculations = {
}
},
raid_1: {
- about: 'RAID 1 consists of an exact copy of the data across two or moe disks. The array will operate as long as at least one drive is operational. More info: Wikipedia',
+ about: 'RAID 1 consists of an exact copy of the data (mirror) across two or more disks. The array will operate as long as at least one drive is operational. More info: Wikipedia',
requirements: 'RAID 1 requires at least 1 disk',
validate: function(num, size){
return num > 1
@@ -38,7 +38,7 @@ const raidCalculations = {
}
},
raid_5: {
- about: 'This is RAID 5',
+ about: 'RAID 5 uses block level striping with parity. This allows for fault tolerance with a storage reduction equal to one drive for the parity information. More info: Wikipedia',
requirements: 'RAID 5 requires at least 3 disks',
validate: function(num, size){
return num >= 3
@@ -56,7 +56,7 @@ const raidCalculations = {
}
},
raid_6: {
- about: 'This is RAID 6',
+ about: 'RAID 6 is similiar to RAID 5 but with an additional parity block. This allows for an additional disk failure at the cost of storage reduction equal to two drives. More info: Wikipedia',
requirements: 'RAID 6 requires at least 4 disks',
validate: function(num, size){
return num >= 4
@@ -74,7 +74,7 @@ const raidCalculations = {
}
},
raid_10: {
- about: 'RAID 10 is generally recognized as a stripe of mirrors (RAID 1 + RAID 2). Each set of drives is mirrored and striped together so that each drive in the set is fault tolerant within the group. More info: Wikipedia',
+ about: 'RAID 10 is generally recognized as a stripe of mirrors (RAID 1 + RAID 0). Each set of drives is mirrored and striped together so that each drive in the set is fault tolerant within the group. More info: Wikipedia',
requirements: 'RAID 10 requires an even number of at least 4 disks',
validate: function(num, size){
return num >= 4 && num % 2 == 0
@@ -87,8 +87,8 @@ const raidCalculations = {
return `${num - 2}x read speed gain and write speed penalty (due to parity calculations)`;
},
fault: function(num, size, unit){
- // always 2 drive failures
- return "At least 1 drive failure per mirrored set";
+ // one per mirror
+ return "1 drive failure per mirrored set";
}
}
}