Data Solutions For You - Server Availability Information

Data Solutions For You		Server Availability Statistics
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Date	Available HHH:MM:SS	Uptime % of month
11-1999	696:07:25	96.7%
12-1999	654:00:39	87.9%
01-2000	625:13:44	84.0%
02-2000	680:10:01	97.7%
03-2000	736:17:20	99.0%
04-2000	657:51:27	91.4%
05-2000	624:33:11	84.0%
06-2000	583:51:57	81.1%
07-2000	662:05:30	89.0%
08-01-2000 to 08-12-2000 12:14:48	239:51:52	86.9%

Percentages rounded to nearest tenth
The above server availability based on ISP connectivity billing information.
Which has been shown to be unreliable.. showing LESS connectivity than actually occurred.

New method of calculating connectivity effective 08-12-2000
This method uses the servers Windows 2000 EventLog. All relevant event timings are calculated using a tool written by the Server Admin in Visual Basic 6.

Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
08-12-2000 12:14:48 to 08-31-2000 23:59:59	467:45:11	3	100%	462:21:19	98.8%	n/a	n/a	Windows 2000 service started on 08-12-2000 at 12:14:48
09-2000	718:48:34	4	99.83%	713:46:55	99.14%	470:18:56	98.99%	Database Server started 09-10-2000 at 04:53:43, therefore the total hours will be lower. The Uptime percentage was calculated based on the server startup date and time.
10-2000	743:59:59	1	100%	740:16:36	99.50%	741:53:35	99.72%
11-2000	717:50:53	10	99.7%	717:27:01	99.65%	718:04:21	99.73%
12-2000	743:43:36	16	99.963%	741:45:04	99.70%	741:44:22	99.70%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2001	743:59:59	2	100%	735:04:44	98.80%	743:59:59	100%
02-2001	671:59:59	3	100%	671:14:01	98.89%	671:49:01	99.97%
03-2001	743:59:59	0	100%	735:04:44	95.39%	743:59:59	100%	Major Web server hardware upgrade caused lower uptime.
04-2001	719:59:59	1	100%	716:06:04	99.46%	719:19:06	99.91%
05-2001	742:55:27	4	99.855%	742:34:01	99.81%	unavail	unavail	Major software/hardware upgrades again this month. Complete replacement of Database Server hardware and software.
06-2001	719:59:59	2	100%	718:19:43	99.77%	719:53:55	99.99%	Installation of Win2K SP2 on both machines Reformat Database Transaction hard drive to NTFS
07-2001	743:59:59	6	100%	741:58:58	99.73%	743:59:59	100%
08-2001	743:33:05	29	99.94%	742:54:13	99.85%	742:17:32	99.77%
09-2001	719:59:59	3	100%	719:41:38	99.96%	719:41:43	99.96%
10-2001	743:59:59	1	100%	742:56:17	99.86%	743:51:08	99.98%
11-2001	719:59:59	1	100%	719:39:32	99.95%	719:59:59	100%
12-2001	740:01:12	2	99.47%	740:56:52	99.59%	738:41:12	99.29%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2002	741:14:15	9	99.629%	740:11:05	99.49%	742:16:39	99.77%
02-2002	671:11:54	5	99.881%	671:40:38	99.952%	635:21:50	94.55%	Complete network rebuild this month. All network connection speeds will be increased Database Server hardware rebuild required
03-2002	742:52:45	5	99.849%	743:16:52	99.903%	695:59:59	93.5%	5 hard drives lost data on Database Server Estimated outage of Database Server is 2 days total time
04-2002	719:59:59	0	100%	719:47:22	99.971%	719:49:34	99.976%
05-2002	743:59:59	2	100%	743:57:03	99.993%	743:55:18	99.990%
06-2002	719:56:04	15	99.991%	719:58:10	99.996%	719:02:39	99.867%
07-2002	743:59:59	14	100%	743:54:17	99.987%	743:59:59	100%
08-2002	743:59:29	6	99.999%	743:58:16	99.996%	743:59:59	100%
09-2002	719:59:59	1	100%	713:01:50	99.032%	719:48:50	99.974%
10-2002	743:59:29	0	100%	743:41:17	99.958%	740:46:44	99.567%
11-2002	719:59:59	0	100%	719:06:12	99.876%	719:43:18	99.961%
12-2002	743:59:59	1	100%	743:42:24	99.961%	743:16:14	99.902%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2003	740:58:14	2	99.593%	741:36:16	99.678%	741:45:10	99.698%
02-2003	671:59:59	1	100%	671:37:35	99.944%	671:56:08	99.990%
03-2003	743:59:59	0	100%	743:05:55	99.879%	743:37:06	99.949%
04-2003	719:59:59	0	100%	743:55:17	99.989%	719:59:59	100%
05-2003	743:59:59	1	100%	743:05:55	99.879%	743:55:37	99.990%
06-2003	719:59:59	1	100%	718:59:00	99.859%	719:59:59	100%
07-2003	743:59:59	1	100%	743:40:40	99.957%	743:36:40	99.608%
08-2003	732:03:33	11	98.395%	728:53:21	97.969%	708:07:35	95.178%	Northeast US Blackout
09-2003	716:59:32	8	99.582%	717:16:35	99.622%	696:58:55	96.803%
10-2003	743:59:59	8	100%	743:55:39	99.99%	741:31:11	99.667%
11-2003	718:57:53	14	99.856%	719:15:20	99.897%	710:58:15	98.746%
12-2003	743:25:43	4	99.923%	743:36:22	99.947%	735:50:02	99.902%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2004	743:59:59	1	100%	743:36:52	99.948%	n/a	n/a	Investigating Database server availability time Something is causing SQL Server times to be off.
02-2004	671:59:59	0	100%	671:56:43	99.992%	n/a	n/a	Investigating Database server availability time
03-2004	743:25:19	3	99.922%	743:46:48	99.97%	n/a	n/a	Investigating Database server availability time
04-2004	719:59:59	1	100%	719:59:59	100%	710:27:34	98.675%
05-2004	743:59:59	4	100%	743:42:02	99.96%	743:58:42	99.997%
06-2004	719:59:59	1	100%	719:58:56	99.998%	719:59:59	100%
07-2004	743:59:59	4	100%	738:21:43	99.242%	738:38:48	99.281%	Downtime higher for this month due to scheduled maintenance on weekend of 7/2 to 7/6 (approx 5.5 hours)
08-2004	743:59:59	12	100%	743:55:39	99.99%%	743:59:59	100%
09-2004	719:59:59	5	100%	719:52:14	92.982%	719:59:59	100%
10-2004	743:59:59	0	100%	743:56:04	99.991%	743:37:09	99.949%
11-2004	719:59:59	7	100%	718:18:06	99.764%	719:34:37	99.941%
12-2004	743:59:59	12	100%	740:34:07	99.539%	739:24:39	99.383%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2005	743:59:59	0	100%	743:49:13	99.976%	743:59:59	100%
02-2005	671:59:59	0	100%	671:46:57	99.968%	671:20:56	99.903%
03-2005	741:28:54	9	99.662%	741:50:00	99.709%	741:46:20	99.701%
04-2005	719:59:59	3	100%	716:16:33	99.899%	717:53:52	99.708%
05-2005	743:59:59	1	100%	743:58:47	99.997%	743:59:59	100%
06-2005	719:59:56	9	100%	719:59:59	100%	719:59:59	100%	A perfect month, but with 9 power utility outages
07-2005	743:59:59	3	100%	743:57:27	99.994%	743:56:51	99.993%
08-2005	743:52:20	5	99.983%	743:57:29	99.994%	740:54:22	99.584%
09-2005	719:59:59	3	100%	719:59:59	100%	719:59:59	100%	A perfect month, still had 3 power utility outages
10-2005	743:59:59	8	100%	743:58:45	99.997%	743:59:59	100%
11-2005	719:59:46	3	99.999%	719:58:45	99.997%	717:03:45	99.592%
12-2005	743:59:59	1	100%	743:58:46	99.997%	743:58:23	99.996%
Date	Utility Power	Outages	Uptime % of month	Web Server Available HHH:MM:SS	Uptime % of month	Database Server Available HHH:MM:SS	Uptime % of month	Notes
01-2006	743:59:59	11	100%	743:57:34	99.995%	743:58:26	99.997%
02-2006	671:59:58	1	100%	671:59:59	100%	671:59:59	100%	A perfect month
03-2006	743:59:59	1	100%	743:56:54	99.993%	743:59:59	100%
04-2006	718:29:35	2	99.791%	718:16:14	99.76%	711:44:54	98.854%
05-2006	743:59:58	2	100%	743:48:15	99.974%	743:58:16	99.996%
06-2006	---:--:--	-	---%	---:--:--	---%	---:--:--	---%

Last Modified: Monday, 03-Jul-2006 10:32:07 Eastern Daylight Time