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provisioning: add cost information

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This commit is contained in:
Brian Warner 2007-09-10 15:29:33 -07:00
parent 09ff5af99c
commit 0497d62939
1 changed files with 51 additions and 1 deletions
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52
src/allmydata/provisioning.py
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@ -140,6 +140,7 @@ class ProvisioningTool(rend.Page):
space_per_user_sizes = [(1e6, "1MB"),
(10e6, "10MB"),
(100e6, "100MB"),
(200e6, "200MB"),
(1e9, "1GB"),
(2e9, "2GB"),
(5e9, "5GB"),
@ -147,9 +148,10 @@ class ProvisioningTool(rend.Page):
(100e9, "100GB"),
(1e12, "1TB"),
]
# current allmydata average utilization 127MB per user
space_per_user, i_space_per_user = get_and_set("space_per_user",
space_per_user_sizes,
1e9)
200e6)
add_input("Users",
"How much data is in each user's vdrive? (avg)",
i_space_per_user)
@ -170,6 +172,7 @@ class ProvisioningTool(rend.Page):
("3-of-10-8", "3.3x (3-of-10, repair below 8)"),
("5-of-10-7", "2x (5-of-10, repair below 7)"),
("8-of-10-9", "1.25x (8-of-10, repair below 9)"),
("27-of-30-28", "1.1x (27-of-30, repair below 28"),
("25-of-100-50", "4x (25-of-100, repair below 50)"),
]
encoding_parameters, i_encoding_parameters = \
@ -190,6 +193,7 @@ class ProvisioningTool(rend.Page):
# Server info
num_server_choices = [ (5, "5 servers"),
(10, "10 servers"),
(15, "15 servers"),
(30, "30 servers"),
(50, "50 servers"),
(100, "100 servers"),
@ -566,6 +570,52 @@ class ProvisioningTool(rend.Page):
add_output("Servers",
T.div["Drives per server: ", drives_per_server])
# costs
if drive_size == 750 * 1e9:
add_output("Servers", T.div["750GB drive: $250 each"])
drive_cost = 250
else:
add_output("Servers",
T.div[T.b["unknown cost per drive, assuming $100"]])
drive_cost = 100
if drives_per_server <= 4:
add_output("Servers", T.div["1U box with <= 4 drives: $1500"])
server_cost = 1500 # typical 1U box
elif drives_per_server <= 12:
add_output("Servers", T.div["2U box with <= 12 drives: $2500"])
server_cost = 2500 # 2U box
else:
add_output("Servers",
T.div[T.b["Note: too many drives per server, "
"assuming $300"]])
server_cost = 3000
server_capital_cost = (server_cost + drives_per_server * drive_cost)
total_server_cost = float(num_servers * server_capital_cost)
add_output("Servers", T.div["Capital cost per server: $",
server_capital_cost])
add_output("Grid", T.div["Capital cost for all servers: $",
number(total_server_cost)])
# $70/Mbps/mo
# $44/server/mo power+space
server_bandwidth = max(server_inbound_byte_rate,
server_outbound_byte_rate)
server_bandwidth_mbps = mathutil.div_ceil(int(server_bandwidth*8),
int(1e6))
server_monthly_cost = 70*server_bandwidth_mbps + 44
total_server_monthly_cost = float(num_servers * server_monthly_cost)
add_output("Servers", T.div["Monthly cost per server: $",
server_monthly_cost])
add_output("Grid", T.div["Monthly cost for all servers: $",
number(total_server_monthly_cost)])
add_output("Users", T.div["Capital cost per user: $",
number(total_server_cost / num_users)])
add_output("Users",
T.div["Monthly cost per user: $",
number(total_server_monthly_cost / num_users)])
# reliability
any_drive_failure_rate = total_drives * drive_failure_rate
any_drive_MTBF = 1 // any_drive_failure_rate # in seconds
any_drive_MTBF_days = any_drive_MTBF / 86400