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WSS 3.0 How-To more updates

xaniasabrina — Sat, 12 Dec 2009 16:42:59 +0000

WSS 3.0

Understanding Site Collections

Creating Subsite

WSS3.0 How-To update

xaniasabrina — Thu, 10 Dec 2009 20:06:48 +0000

Understanding Sharepoint Site

Viewing a site and its components

Windows Sharepoint Services 3.0

xaniasabrina — Tue, 24 Nov 2009 15:10:57 +0000

I have started a how-to document guide on WSS. The intention is to help site administrators by providing a step-by-step guide.

Up to date, I have provided how to change site theme and how to insert company banner.

I remember I set up WSS server long time ago, but I did not immediately start building the site. The reason was because I could not imagine how to design the sites, although I know what information I want to share on the site. Months passed by, and a new colleague came to join our company. She started to show me what can be done to the site, how to design the site, how to create custom list, how to modify custom list view, and so forth. I began to understand that WSS can be flexible, and with that it is powerful. To my colleague, I thank you

This step-by-step guide is an ongoing project for me. Hopefully by sharing this, it will be beneficial for site administrators newbies. ENJOY

OneNote 2010 "dock to desktop"

xaniasabrina — Thu, 19 Nov 2009 08:21:07 +0000

A lot of friends are asking me how to do the "dock to desktop". It is simple. Just click on the icon on the Title Bar. I have circled the icon in the following screenshot.

Enjoy

Microsoft Office Professional Plus 2010 Beta

xaniasabrina — Tue, 17 Nov 2009 12:11:31 +0000

Yo PEOPLE!! The Office 2010 Beta is out. Get it from Technet or MSDN. Try it out. It’s awesome!! For Technet/MSDN subscriber as yet.

Today 19th Nov, the Office 2010 Beta is out for public. You can download from Technet or MSDN

Subnet Calculation

xaniasabrina — Sun, 15 Nov 2009 15:13:14 +0000

This topic works hand in hand with IPv4.

Subnet consists of 32bits in binary form, and usually written in dot-decimal notation (eg. 255.255.255.0)

Sample Calculation #1

Prefix

/24

What does it mean in binary?

Starting from left most side, there are 24 ones, as shown below

11111111.11111111.11111111.00000000

How it is written in dot-decimal?

11111111

00000000

2^7 + 2^6 + 2^5 + 2^4 + 2^3 + 2^2 + 2^1 + 2^0

= 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1

= 255

255

What is the total range?

2^( Default bits 32 – prefix 24 )

= 2^8

= 256

For the total range, how many hosts can it have? – 2

256 – 2

= 254

Sample Calculation #2

Prefix

/20

What does it mean in binary?

Starting from left most side, there are 20 ones, as shown below

11111111.11111111.11110000.00000000

How it is written in dot-decimal?

11111111

11110000

00000000

2^7 + 2^6 + 2^5 + 2^4

= 128 + 64 + 32 + 16

= 240

255

240

What is the total range?

2^( Default bits 32 – prefix 20)

= 2^12

= 4096

For the total range, how many hosts can it have? – 2

4096 – 2

= 4094

Subnet Table

Prefix	Binary Form	Dot-Decimal Notation	Total range	Total hosts
/14	11111111.11111100.00000000.0000000	255.252.0.0	262,144	262,142
/15	11111111.11111110.00000000.0000000	255.254.0.0	131,072	131,070
/16	11111111.11111111.00000000.0000000	255.255.0.0	65,536	65,534
/17	11111111.11111111.10000000.0000000	255.255.128.0	32,768	32,766
/18	11111111.11111111.11000000.0000000	255.255.192.0	16,384	16,382
/19	11111111.11111111.11100000.0000000	255.255.224.0	8,192	8,190
/20	11111111.11111111.11110000.0000000	255.255.240.0	4,096	4,094
/21	11111111.11111111.11111000.0000000	255.255.248.0	2,048	2,046
/22	11111111.11111111.11111100.0000000	255.255.252.0	1,024	1,022
/23	11111111.11111111.11111110.0000000	255.255.254.0	512	510
/24	11111111.11111111.11111111.00000000	255.255.255.0	256	254
/25	11111111.11111111.11111111.10000000	255.255.255.128	128	128
/26	11111111.11111111.11111111.11000000	255.255.255.192	64	62
/27	11111111.11111111.11111111.11100000	255.255.255.224	32	30
/28	11111111.11111111.11111111.11110000	255.255.255.240	16	14
/29	11111111.11111111.11111111.11111000	255.255.255.248	8	6
/30	11111111.11111111.11111111.11111100	255.255.255.252	4	2
/31	11111111.11111111.11111111.11111110	255.255.255.254	2	0
/32	11111111.11111111.11111111.11111111	255.255.255.255	1	1

OneNote 2010 (Technical Preview)

xaniasabrina — Sat, 14 Nov 2009 03:59:40 +0000

I found a new feature in OneNote 2010 which is FANTASTIC!! It is called “dock to desktop”, where you can dock your OneNote to one side of your screen. And the rest of the screen can be your workspace. Whatever window you open will be displayed in workspace and it will not overlap on your OneNote. It’s like having a workspace on your table with your scratchpad at the side, ready for you to jot down little tidbits of information

ISA 2004 Management Console hangs

xaniasabrina — Sat, 14 Nov 2009 03:25:25 +0000

I’ve had this problem for a long time. But it wasn’t so critical. It’s just frustrating to see the ISA management hangs.

Basically, when i open the console, double click on one of the firewall rules, go to the protocol tab… the console hangs. I will have to

(1) leave it and come back in 15mins, when the console will close by itself, or

(2) open another instance of ISA management console, or

(3) go to services.msc, and restart all ISA services

This happens because service packs are not installed. Install all the service packs and the problem will disappear

Determining Your System’s High Availability Percentage

xaniasabrina — Thu, 12 Nov 2009 19:54:04 +0000

Most of the time we see customers statement of requirement for their system availability to be 99.9% or 99.99% or higher. What does it really mean? What determines these figures?

When customers say they want the system to be 99% availability, it means they want the system to be available 99% of the time, with the allowance of 1% downtime. Let’s put value to the time, and for the sake of simple calculation, let’s take 100 days. The customer wants their system to be available for user access for 99 days with the allowance of 1 day downtime. Which means in a year, the allowance of downtime is approximately 3.5 days.

The following table shows the translation of percentage availability to downtime in a year, month, and week.

Availability %	Downtime %	Downtime per year (365 days)	Downtime per month (30 day calculation)	Downtime per week
90%	10%	36.5 days	72 hours	16.8 hours
95%	5%	18.25 days	36 hours	8.4 hours
98%	2%	7.3 days	14.4 hours	3.36 hours
99%	1%	3.65 days	7.2 hours	1.68 hours
99.5%	0.5%	1.83 days	3.6 hours	50.4 minutes
99.8%	0.2%	17.52 hours	86.23 minutes	20.16 minutes
99.9% (three nines)	0.1%	8.76 hours	43.2 minutes	10.1 minutes
99.95%	0.05%	4.38 hours	21.56 minutes	5.04 minutes
99.99% (four nines)	0.01%	52.6 minutes	4.32 minutes	1.01 minutes
99.999% (five nines)	0.001%	5.26 seconds	25.9 seconds	6.05 seconds

We need to know what is meant by downtime. Downtime means the period of time that the server/service is unavailable. It could be the result of:

a. planned downtime – occurs due to maintenance such as server reboot after patches update, etc

b. unplanned downtime – occurs due to service/hardware failure such as power outage, network connection problem, etc

How do we determine which figure is suited for our system? The more critical the system is, the higher percentage availability goes.

How do determine the system’s critical level? We have to look at the system, understand what the system does, and what are the consequences when the system is down, whether it slows down operations, or it can cause life and death situations. When the system can cause life and death situations, it is understood that the system has high critical level, which requires high availability percentage.

#	System	Description	Consequences of downtime	Critical level	Assign % availability	Why?
1.	Email System	a corporation has their own email system, and the corporate office hours is 9am – 5pm	slows down operations	low	90%	72 hours downtime a month, which could happen during out of office hours, is acceptable
2.	Human Resource Management System	an international company has HQs in Brunei and USA, where the time zone has 12 hours difference	human resource section will not be able to do their tasks	moderate	95%	the system is in use round the clock, a 36 hours downtime a month, is quite acceptable
3.	Hospital Patient Record System	the patient record is used by doctors, nurses, parmacists for medical checkups, follow ups, surgical, prescription etc	life and death situations	high	99.99%	when system is down, it could cause doctors to diagnose the patient wrongly, surgeon to operate the patient wrongly, or pharmacists to prescribe drugs wrongly. All these can cause life and death situation, hence it requires high percentage to availability

How does the system engineers design the system to have high percentage availability? Mostly, engineers will eliminate every single point of failures by introducing fault tolerance, redundancy equipment, clustering, and load balancing.

The cost of system with high percentage availability. We also have to keep in mind that high percentage availability means engineers will propose for lots of redundancy which shoots up the price sky high.

70-291 PASSED :) :) :)

xaniasabrina — Fri, 06 Nov 2009 15:09:42 +0000

Today, i’v done 70-291 exam and i’v passed .

Up to date, i have 70-291, 70-290, and 70-620. Next step is to complete this set with one more exam to be an MCSA. I have not decided which elective to take.

Until then… CIAO