From: Brian Warner Date: Mon, 10 Sep 2007 22:46:45 +0000 (-0700) Subject: provisioning: include the cost of replacing failed hard drives X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/uri/%22doc.html?a=commitdiff_plain;h=89a25f198791b7edbd9d6f852e92035e02428fc5;p=tahoe-lafs%2Ftahoe-lafs.git provisioning: include the cost of replacing failed hard drives --- diff --git a/src/allmydata/provisioning.py b/src/allmydata/provisioning.py index d0ae5d1f..93164e87 100644 --- a/src/allmydata/provisioning.py +++ b/src/allmydata/provisioning.py @@ -604,16 +604,10 @@ class ProvisioningTool(rend.Page): 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 @@ -622,6 +616,21 @@ class ProvisioningTool(rend.Page): add_output("Drives", T.div["MTBF (any drive): ", number(any_drive_MTBF_days), " days"]) + drive_replacement_monthly_cost = (float(drive_cost) + * any_drive_failure_rate + *30*86400) + add_output("Grid", + T.div["Monthly cost of replacing drives: $", + number(drive_replacement_monthly_cost)]) + + total_server_monthly_cost = float(num_servers * server_monthly_cost + + drive_replacement_monthly_cost) + + add_output("Grid", T.div["Monthly cost for all servers: $", + number(total_server_monthly_cost)]) + add_output("Users", + T.div["Monthly cost per user: $", + number(total_server_monthly_cost / num_users)]) # availability file_dBA = self.file_availability(k, n, server_dBA)