Operational Status

2021

2020

2019

2018

2017

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
September 2021	0	0	100%
August 2021	0	0	100%
July 2021	0	0	100%
June 2021	0	0	100%
May 2021	0	0	100%
April 2021	0	0	100%
March 2021	0	0	100%
February 2021	0	0	100%
January 2021	0	0	100%

Availability is related to the duration of Severity 1 incidents. The DSB Availability target is 99.9%

Latency and Throughput Statistics

Month and Year	Message	50th percentile latency (ms)	90th percentile latency (ms)	99th percentile latency (ms)
September 2021	ISIN Record retrieval by ISIN code	14	28	61
	ISIN Record retrieval by ISIN attributes	33	54	100
	ISIN Create Requests	66	169	238
	ISIN Search	33	92	426
August 2021	ISIN Record retrieval by ISIN code	14	37	83
	ISIN Record retrieval by ISIN attributes	32	64	107
	ISIN Create Requests	84	320	616
	ISIN Search	66	134	936
July 2021	ISIN Record retrieval by ISIN code	12	36	102
	ISIN Record retrieval by ISIN attributes	31	72	127
	ISIN Create Requests	87	509	872
	ISIN Search	49	119	233
June 2021	ISIN Record retrieval by ISIN code	17	67	124
	ISIN Record retrieval by ISIN attributes	31	74	139
	ISIN Create Requests	107	814	1,016^
	ISIN Search	90	158	709
May 2021	ISIN Record retrieval by ISIN code	16	56	134
	ISIN Record retrieval by ISIN attributes	30	69	138
	ISIN Create Requests	104	631	964
	ISIN Search	94	312	997
April 2021	ISIN Record retrieval by ISIN code	15	48	116
	ISIN Record retrieval by ISIN attributes	23	54	108
	ISIN Create Requests	59	297	488
	ISIN Search	74	200	456
March 2021	ISIN Record retrieval by ISIN code	15	34	86
	ISIN Record retrieval by ISIN attributes	24	55	109
	ISIN Create Requests	38	261	456
	ISIN Search	68	193	1,001
February 2021	ISIN Record retrieval by ISIN code	12	44	116
	ISIN Record retrieval by ISIN attributes	23	52	105
	ISIN Create Requests	39	274	471
	ISIN Search	73	200	596
January 2021	ISIN Record retrieval by ISIN code	11	30	79
	ISIN Record retrieval by ISIN attributes	21	46	92
	ISIN Create Requests	31	201	403
	ISIN Search	71	195	748

The DSB Latency targets:

* 99% of all messages for workflows related to ISIN Record retrieval by ISIN code are to be processed and delivered in 500ms.
* 99% of all messages for workflows related to ISIN Record retrieval by ISIN attributes are to be processed and delivered in 1,000ms.
* 99% of all messages for workflows related to ISIN Create Requests are to be processed and delivered in 1,000ms.
* 99% of all messages for workflows related to ISIN Search (wildcard search by metadata) are to be processed and delivered in 5,000ms.

^30th June 2021 – Please refer to the RCA document below for further details.

Incident Details and Root Cause Analyses

Date of Incident	Incident Name	Severity 2 Duration	RCA (Root Cause Analysis)
14th February 2021	Intermittent Parse Context errors	23 hours 13 mins	View Document
15th February 2021	FIX API Disconnection	1 hour 57 minutes	View Document
15th February 2021	“Something went wrong” errors encountered by ReST users	9 hours 17 minutes	View Document
30th June 2021	For Increased latency during ISIN creation		View Document

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2020	0	0	100%
November 2020	0	0	100%
October 2020	0	0	100%
September 2020	0	0	100%
August 2020	0	0	100%
July 2020	0	0	100%
June 2020	0	0	100%
May 2020	0	0	100%
April 2020	0	0	100%
March 2020	0	0	100%
February 2020	0	0	100%
January 2020	0	0	100%

Availability is related to the duration of Severity 1 incidents. The DSB Availability target is 99.9%

Latency and Throughput Statistics

Month and Year	Message	50th percentile latency (ms)	90th percentile latency (ms)	99th percentile latency (ms)
December 2020	ISIN Record retrieval by ISIN code	12	47	131
	ISIN Record retrieval by ISIN attributes	21	43	87
	ISIN Create Requests	36	172	366
	ISIN Search	82	257	970
November 2020	ISIN Record retrieval by ISIN code	11	30	84
	ISIN Record retrieval by ISIN attributes	22	44	87
	ISIN Create Requests	83	173	382
	ISIN Search	73	217	847
October 2020	ISIN Record retrieval by ISIN code	12	30	77
	ISIN Record retrieval by ISIN attributes	21	46	90
	ISIN Create Requests	93	153	363
	ISIN Search	64	205	580
September 2020	ISIN Record retrieval by ISIN code	11	28	67
	ISIN Record retrieval by ISIN attributes	20	39	76
	ISIN Create Requests	49	125	298
	ISIN Search	58	158	1541
August 2020	ISIN Record retrieval by ISIN code	11	29	60
	ISIN Record retrieval by ISIN attributes	20	38	73
	ISIN Create Requests	53	121	191
	ISIN Search	52	89	231
July 2020	ISIN Record retrieval by ISIN code	10	28	55
	ISIN Record retrieval by ISIN attributes	21	43	75
	ISIN Create Requests	96	123	195
	ISIN Search	42	82	337
June 2020	ISIN Record retrieval by ISIN code	11	34	59
	ISIN Record retrieval by ISIN attributes	20	52	78
	ISIN Create Requests	44	121	191
	ISIN Search	64	96	235
May 2020	ISIN Record retrieval by ISIN code	12	37	66
	ISIN Record retrieval by ISIN attributes	20	54	84
	ISIN Create Requests	92	126	198
	ISIN Search	62	103	501
April 2020	ISIN Record retrieval by ISIN code	10	26	54
	ISIN Record retrieval by ISIN attributes	20	48	82
	ISIN Create Requests	96	131	202
	ISIN Search	55	83	273
March 2020	ISIN Record retrieval by ISIN code	10	25	52
	ISIN Record retrieval by ISIN attributes	20	51	83
	ISIN Create Requests	81	132	209
	ISIN Search	54	86	283
February 2020	ISIN Record retrieval by ISIN code	10	27	52
	ISIN Record retrieval by ISIN attributes	20	45	82
	ISIN Create Requests	98	135	205
	ISIN Search	53	91	334
January 2020	ISIN Record retrieval by ISIN code	26	50	80
	ISIN Record retrieval by ISIN attributes	47	90	128
	ISIN Create Requests	127	206	309
	ISIN Search	55	98	264

The DSB Latency targets:

Incident Details and Root Cause Analyses

Date of Incident	Incident Name	Severity 1 Duration	Severity 2 Duration	RCA (Root Cause Analysis)
8th January 2020	FIX Service Disruption		5mins	View Document

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2019	0	0	100%
November 2019	0	0	100%
October 2019	0	0	100%
September 2019	0	0	100%
August 2019	0	0	100%
July 2019	0	0	100%
June 2019	0	0	100%
May 2019	0	0	100%
April 2019	0	0	100%
March 2019	0	0	100%
February 2019	0	0	100%
January 2019	0	0	100%

Availability is related to the duration of Severity 1 incidents. The DSB Availability target is 99.9%

Latency and Throughput Statistics

Month and Year	50 percentile latency (ms)	90 percentile latency (ms)	99 percentile latency (ms)
December 2019	52	132	285
November 2019	49	105	251
October 2019	49	96	197
September 2019	48	100	203
August 2019	44	91	223
July 2019	39	83	223
June 2019	43	128	256
May 2019	42	127	278
April 2019	42	137	299
March 2019	42	133	241
February 2019	38	142	247
January 2019	42	145	258

The DSB Latency target – 99% of all messages routed through the system are to be processed and delivered in 1,000ms.

Incident Details and Root Cause Analyses

Date of Incident	Incident Name	Severity 1 Duration	Severity 2 Duration	RCA (Root Cause Analysis)
N/A	N/A	N/A	N/A	N/A

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2018	0	0	99.98%
November 2018	0	0	99.97%
October 2018	0	0	99.97%
September 2018	0	0	99.97%
August 2018	0	0	99.97%
July 2018	0	0	99.96%
June 2018	0	0	99.96%
May 2018	0	0	99.95%
April 2018	0	0	99.95%
March 2018	1	21	99.94%
February 2018	1	99	99.94%
January 2018	1	12	99.99%

Availability is related to the duration of Severity 1 incidents. The DSB Availability target is 99.9%

Latency and Throughput Statistics

Month and Year	50 percentile latency (ms)	90 percentile latency (ms)	99 percentile latency (ms)
December 2018	42	135	241
November 2018	40	123	201
October 2018	45	148	638
September 2018	30	135	222
August 2018	21	127	201
July 2018	28	104	191
June 2018	30	127	199
May 2018	45	142	214
April 2018	144	941	2,029
March 2018	330	975	2,079
February 2018	300	745	1,522
January 2018	175	595	1,291

The DSB Latency target – 99% of all messages routed through the system are to be processed and delivered in 1,000ms.

Incident Details and Root Cause Analyses

Date of Incident	Incident Name	Severity 1 Duration	Severity 2 Duration	RCA (Root Cause Analysis)
25th March 2018	SOLR 25 Mar	21mins	1hr 58mins	View Document
23rd February 2018	SOLR 23 Feb	1hr 39mins	1hr 53mins	View Document
24th January 2018	SOLR 24 Jan	12mins	2hrs 26mins	View Document
3rd January 2018	SOLR 2/3 Jan (Cont.)		3hrs	View Document
2nd January 2018	SOLR 2/3 Jan		2hrs 4mins	View Document

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2017	0	0	100%
November 2017	0	0	100%
October 2017	0	0	100%

Availability is related to the duration of Severity 1 incidents. The DSB Availability target is 99.9%

Latency and Throughput Statistics

Month and Year	50 percentile latency (ms)	90 percentile latency (ms)	99 percentile latency (ms)
December 2017	62	294	873
November 2017	108	141	214
October 2017	130	184	224

The DSB Latency target – 99% of all messages routed through the system are to be processed and delivered in 1,000ms.>/p>

Incident Details and Root Cause Analyses

Date of Incident	Incident Name	Severity 1 Duration	Severity 2 Duration	RCA (Root Cause Analysis)
N/A	N/A	N/A	N/A	N/A