Operational Status

DSB Availability

2023

2022

2021

2020

2019

2018

2017

2023

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
January 2023	0	0	100%
February 2023	0	0	100%
March 2023	0	0	100%
April 2023	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)
January 2023	ISIN Record retrieval by ISIN code	14	32	64
	ISIN Record retrieval by ISIN attributes	36	55	88
	ISIN Create Requests	56	161	198
	ISIN Search	98	217	1355
February 2023	ISIN Record retrieval by ISIN code	13	33	60
	ISIN Record retrieval by ISIN attributes	30	45	70
	ISIN Create Requests	51	142	174
	ISIN Search	89	286	1428
March 2023	ISIN Record retrieval by ISIN code	12	36	59
	ISIN Record retrieval by ISIN attributes	31	47	71
	ISIN Create Requests	44	147	183
	ISIN Search	86	235	1193
April 2023	ISIN Record retrieval by ISIN code	11	33	55
	ISIN Record retrieval by ISIN attributes	29	46	71
	ISIN Create Requests	45	140	181
	ISIN Search	97	265	1254

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.

Incident Details and Root Cause Analyses

Date of Incident

Incident Name

Severity 1 Duration

Severity 2 Duration

RCA (Root Cause Analysis)

Classification of Incidents

Severity	Definition
CRITICAL (S1)	DSB Production Service is down or unavailable. Critical issue that severely impacts the DSB Production Service for all users. The situation halts business operations and no procedural workaround exists. Major data elements are corrupted or lost and must be restored from backup. A critical documented feature / function is not available.
MAJOR (S2)	Major Production functionality is impacted, or significant performance degradation is experienced, but is not a Critical Incident. The situation is causing a high impact to some users’ business operations and no reasonable workaround exists. DSB Production Service is operational but highly degraded performance to the point of major impact on usage. Important features of the system offering are unavailable with no acceptable workaround; however, operations can continue in a restricted fashion. Client Onboarding and Support Platform (COSP) functionality is down or unavailable for all users.
IMPORTANT (S3)	There is a partial loss of use of any client facing DSB Service (Production or UAT environments) or the COSP, with a medium-to-low impact on multiple users’ business operations, but operations continue, and is not a Critical Incident or a Major Incident. Short-term workarounds may be available as an interim solution. Outage experienced by programmatic and/or Enterprise user, in DSB Production Service, or COSP.
MINOR (S4)	Inquiry regarding a routine technical issue; information requested on DSB Service capabilities, navigation, access or configuration. Minor issue affecting a single fee-paying user. Acceptable workaround available. Also includes non-technical queries about any other aspect of the DSB Service or COSP.

2022

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2022	0	0	99.95%
November 2022	0	0	99.94%
October 2022	0	0	99.94%
September 2022	0	0	99.93%
August 2022	1	249	99.92%
July 2022	0	0	100%
June 2022	0	0	100%
May 2022	0	0	100%
April 2022	0	0	100%
March 2022	0	0	100%
February 2022	0	0	100%
January 2022	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 2022	ISIN Record retrieval by ISIN code	16	31	64
	ISIN Record retrieval by ISIN attributes	38	58	90
	ISIN Create Requests	61	168	203
	ISIN Search	116	273	790
November 2022	ISIN Record retrieval by ISIN code	16	34	80
	ISIN Record retrieval by ISIN attributes	38	58	92
	ISIN Create Requests	57	167	206
	ISIN Search	84	149	510
October 2022	ISIN Record retrieval by ISIN code	17	48	79
	ISIN Record retrieval by ISIN attributes	38	59	92
	ISIN Create Requests	58	165	203
	ISIN Search	88	237	953
September 2022	ISIN Record retrieval by ISIN code	14	29	62
	ISIN Record retrieval by ISIN attributes	37	57	89
	ISIN Create Requests	58	164	201
	ISIN Search	92	203	493
August 2022	ISIN Record retrieval by ISIN code	16	36	70
	ISIN Record retrieval by ISIN attributes	38	59	91
	ISIN Create Requests	63	170	208
	ISIN Search	90	216	688
July 2022	ISIN Record retrieval by ISIN code	15	34	64
	ISIN Record retrieval by ISIN attributes	38	62	92
	ISIN Create Requests	69	169	211
	ISIN Search	83	198	958
June 2022	ISIN Record retrieval by ISIN code	15	47	152
	ISIN Record retrieval by ISIN attributes	37	63	93
	ISIN Create Requests	64	167	210
	ISIN Search	88	181	601
May 2022	ISIN Record retrieval by ISIN code	15	45	64
	ISIN Record retrieval by ISIN attributes	37	65	96
	ISIN Create Requests	76	173	222
	ISIN Search	85	202	623
April 2022	ISIN Record retrieval by ISIN code	15	43	61
	ISIN Record retrieval by ISIN attributes	37	68	100
	ISIN Create Requests	71	170	216
	ISIN Search	76	161	949
March 2022	ISIN Record retrieval by ISIN code	16	48	78
	ISIN Record retrieval by ISIN attributes	33	62	92
	ISIN Create Requests	67	165	213
	ISIN Search	60	163	485
February 2022	ISIN Record retrieval by ISIN code	17	50	97
	ISIN Record retrieval by ISIN attributes	33	62	90
	ISIN Create Requests	74	162	215
	ISIN Search	57	131	489
January 2022	ISIN Record retrieval by ISIN code	15	47	95
	ISIN Record retrieval by ISIN attributes	31	58	91
	ISIN Create Requests	85	166	384
	ISIN Search	57	149	545

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)
9 August 2022	Outage 2022 – 01	4 hours 9 mins		View Document

Classification of Incidents

Severity	Definition
Critical (S1)	Critical production issue that severely impacts the DSB Service for all Users. The situation halts business operations and no procedural workaround exists. • DSB Service is down or unavailable. • Major data elements are corrupted or lost and must be restored from backup. • A critical documented feature / function is not available.
Major (S2)	Major functionality is impacted or significant performance degradation is experienced and is not a Critical Incident. The situation is causing a high impact to some Users’ business operations and no reasonable workaround exists. • DSB Service is operational but highly degraded performance to the point of major impact on usage. • Important features of the system offering are unavailable with no acceptable workaround; however, operations can continue in a restricted fashion.
Minor (S3)	There is a partial, loss of use of the DSB Service with a medium-to-low impact on your business, but your business continues to function that is not a Critical Incident or a Major Incident. Short-term workaround is available, but not scalable.
Cosmetic (S4)	Inquiry regarding a routine technical issue; information requested on application capabilities, navigation, installation or configuration; bug affecting a small number of users. Acceptable workaround available.

2021

Availability

Month and Year	# of Critical Incidents	Outage in minutes	Cumulative Availability
December 2021	0	0	100%
November 2021	0	0	100%
October 2021	0	0	100%
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)
December 2021	ISIN Record retrieval by ISIN code	10	25	68
	ISIN Record retrieval by ISIN attributes	31	49	100
	ISIN Create Requests	82	181	454
	ISIN Search	60	174	550
November 2021	ISIN Record retrieval by ISIN code	12	27	67
	ISIN Record retrieval by ISIN attributes	30	43	85
	ISIN Create Requests	89	168	271
	ISIN Search	57	111	325
October 2021	ISIN Record retrieval by ISIN code	13	25	62
	ISIN Record retrieval by ISIN attributes	31	52	92
	ISIN Create Requests	73	177	236
	ISIN Search	49	96	327
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:

^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

2020

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

2019

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

2018

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

2017

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.

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