2018/01 - thenoviceoof LTO Analysis
 Share
The version of the browser you are using is no longer supported. Please upgrade to a supported browser.Dismiss

 
Comment only
 
 
ABCDEFGHIJKLMNOPQRSTU
1
Table 1The raw price data pulled from Newegg and Amazon, for both drives (fixed costs) and tape media.
2
2018-01-09 to 2018-01-10
DrivesAverageMediaAverage CostCapacity (TB)
3
LTONeweggAmazonNeweggAmazon
4
3$3,127.00$1,440.00$379.99$138.27$1,411.67$1,649.00$29.17$28.89$23.46$26.89$26.00$20.45$13.49$14.05$14.75$12.99$21.010.40
5
4$948.97$1,678.99$601.78$475.00$599.00$772.50$926.19$24.49$23.99$23.40$21.85$22.20$17.95$16.95$32.34$21.50$23.99$22.870.80
6
5$1,591.33$3,227.95$2,307.69$1,419.46$1,775.00$914.50$2,136.61$20.85$19.99$23.54$19.44$18.07$20.36$20.49$20.71$19.90$22.95$20.631.50
7
6$2,434.05$2,065.00$4,872.00$2,300.00$3,268.82$1,630.14$2,917.76$25.19$26.00$27.00$32.99$30.41$24.00$24.00$25.00$28.99$25.50$26.912.50
8
7$4,299.99$2,201.95$3,107.91$2,998.85$3,735.85$3,310.66$3,152.18$72.00$76.00$79.00$70.70$80.00$77.00$75.786.00
9
8$4,749.00$3,775.07$4,262.04$173.08$175.86$174.4712.00
10
HD $$$$140.004.00
11
HD $$100.004.00
12
Table 2Exploratory graphical analysis: for a logorithmic capacity target, how much would it cost to provision for different tape/hard drive levels? Dropped LTO-3 because was hiding detail with how bad it was.
13
TBLTO 3LTO 4LTO 5LTO 6LTO 7LTO 8HD +HD -
14
10$2,174.36$1,212.01$2,274.14$3,025.39$3,278.48$4,407.43$350.00$250.00
15
17.5$2,568.38$1,426.38$2,377.29$3,106.12$3,373.21$4,516.47$612.50$437.50
16
30.625$3,257.92$1,801.52$2,557.80$3,247.38$3,538.99$4,707.30$1,071.88$765.63
17
53.59375$4,464.60$2,458.03$2,873.69$3,494.60$3,829.09$5,041.24$1,875.78$1,339.84
18
93.7890625$6,576.31$3,606.91$3,426.50$3,927.23$4,336.78$5,625.65$3,282.62$2,344.73
19
164.1308594$10,271.80$5,617.46$4,393.92$4,684.33$5,225.24$6,648.36$5,744.58$4,103.27
20
287.2290039$16,738.90$9,135.91$6,086.91$6,009.26$6,780.04$8,438.11$10,053.02$7,180.73
21
502.6507568$28,056.32$15,293.20$9,049.63$8,327.88$9,500.93$11,570.16$17,592.78$12,566.27
22
Table 3A small intermediate table to break out the calculation into fixed and variable costs more clearly.
23
LTOFixed CostsCost/TB
24
3$1,649.00$52.54
25
4$926.19$28.58
26
5$2,136.61$13.75
27
6$2,917.76$10.76
28
7$3,152.18$12.63
29
8$4,262.04$14.54
30
7 (future)
$2,136.61$4.17}(Doing some sensitivity analysis: if LTO-7/8 prices drop to LTO-5 drive/media prices, does this change our conclusions?
31
8 (future)
$2,136.61$2.08
32
HD $$$$35.00
33
HD $$25.00
34
Table 4The capacity at which tape becomes cost competitive, neglecting things like failing media and available SATA ports and tape management costs.
35
LTO
HD $$$ (TB)
HD $ (TB)
36
3N/AN/A
37
4144.32N/A
38
5100.56189.97
39
6120.39204.94
40
7140.91254.84
41
8208.30407.43
42
7 (future)
69.30102.56
43
8 (future)
64.9193.23
44
Loading...
Main menu