A Little or a lot. How many transfers should an SRM be handling??

The new atlas dashboard (version 2.0) now allows for better analysis of data flows. For the RAL T1 ATLAS endpoint of Castor, the breakdown for number of successful transfers from across the world both to and from RAL is as follows.
Firstly into RAL (over the last four weeks:)

TOTAL-	1966315
CA+	12191
CERN+	140494
DE+	27543
ES+	15085
FR+	31555
IT+	15514
ND+	10891
NL+	23515
TW+	6505
UK+	1636099
US+	46923

Unsurpisingly; the majority of transfers are from with the UK; (due to the UK Tier 2s. ) However , 16.8% of transfers in are from outside the UK. (3% or 59k are transfers are internal RAL-RAL transfers.)

The number of transfers for when RAL is a source are:

TOTAL-	872941
CA+	39604
CERN+	150286
DE+	66500
ES+	17848
FR+	78635
IT+	57309
ND+	19585
NL+	22602
TW+	37437
UK+	303770
US+	79365

( NB. There is a small amount of double counting as the 59299 RAL-RAL transfers appear in both sets of figures in the "UK" values.) average filesize was 287 MB and took 80.43 seconds to copy.
100k per day at RAL for ATLAS.
320k per day at BNL for ATLAS.
140k per day at FZK for ATLAS.
150k per day IN2P3 for ATLAS.

Now the SRM also has to handle files being written into it from the WNs at a site. The number of completed jobs for a selection of T1s is:
18k per day at RAL for ATLAS.
50k per day at BNL for ATLAS.
27k per day at FZK for ATLAS.
15k per day IN2p3 for ATLAS.

Now each job on average produces two output files; meaning that for RAL, ~35/135 of its SRM transfers (~1/4) come form its worker nodes.

UK T2s do approximately 80k transfers per day for ATLAS ( and complete ~50k jobs per day).