top 10 non-sharepoint technical issues that can doom your...
TRANSCRIPT
Top 10 Non-SharePoint Technical
Issues That Can Doom Your
ImplementationRobert Bogue
(317)844-5310
Agenda
• Background
• Categories
• Do the Top 10 thing
• Close out
My Background
• Memorized the pinout of an RS-232 serial connection
• Assembled computers when memory was chips and not sticks
• Ran Ethernet when it was coax
• Built servers when SCSI was a dirty word and RAID was used to get rid of bugs
My Present
• 13 Microsoft MVP Awards
• Author credit on 25 books
• Passionate about driving business value
Issue Types
• Performance
• Functionality
• Reliability
Performance
Functionality
Reliability
Abandonment
10. SQL Server Performance
What to Check• SQL Server Buffer Manager: Page
Life Expectancy > 300 (seconds)
What You’ll See• Slow performance across the board• Long search crawl times
What’s Wrong• SQL Server is the bottleneck in
SharePoint implementations
What to do• Add memory• Add memory• Improve disk performance• Add another SQL instance
Head
Arm
Platter
Around the mulberry bush…
RAID 5
Dp
C1
B1
A1
Disk 0
D1
Cp
B2
A2
Disk 1
D2
C2
Bp
A3
Disk 2
D3
C3
B3
Ap
Disk 3
RAID 1+0
D1a
C1a
B1a
A1a
Disk 0
D1b
C1b
B1b
A1b
Disk 1
D2a
C2a
B2a
A2a
Disk 2
D2b
C2b
B2b
A2b
Disk 3
It Bugs Me!
Physics are Physics
Even if you don’t want them to be.
9. SAN Configuration
What to Check• Average time per read < 20ms• Average time per write < 20ms• RAID configuration is RAID 10 not
5/6 (DP)
What You’ll See• Slow performance, especially initial
loading of a site• Less effectiveness in adding RAM to
the SQL server
What’s Wrong• Disks aren’t producing enough IOPS
What to do• Reconfigure from RAID 5/6(DP) to
RAID 10• Buy more, faster, smaller disks (or
SSD)
Storage and Speed
8. Load Balancer Configuration
What to Check• Session affinity• Session identification
What You’ll See• First hit response times, even after
the first hit
What’s Wrong• The load balancer isn’t configured
for session affinity (sticky sessions)
What to do• Configure the load balancer for
session affinity (sticky sessions)
7. SharePoint Server Disk
What to Check• Every query server has 30% of the
total size of everything you want to search
What You’ll See• SharePoint Server disks get filled up
What’s Wrong• The full text (non-SQL) indexes get
copied to every query server (and they’re big)
What to do• Add disks until you have enough
6. Core Network
What to Check• No Firewall between servers• Network adapter transmit buffer < 1
What You’ll See• Weird SharePoint errors• Erratic and unpredictable
performance
What’s Wrong• Insufficient bandwidth between
servers• Packet loss
What to do• Remove firewall and proxy servers
between SharePoint and SQL• Ensure all network ports plugged in
and bonded• Plug all SharePoint servers into a
single switch
Virtualization
5. Lack of Quality
What to Check• The value of downtime in
production to the organization
What You’ll See• Unknown problems in your
production environment
What’s Wrong• There’s no way to validate your code
and configuration changes
What to do• Get at least one controlled
environment before production
The Impact of Developers
4. Crosstalk
What to Check• Production can not communicate
with development
What You’ll See• Random outages in production• Random performance issues in
production
What’s Wrong• Production is referencing
development resources (which are being shutdown)
What to do• Put production (and QA) on a
separate subnet that can’t talk to development resources
3. Abstract IP
What to Check• Configuration of the proxy server or
load balancer• IIS Logs to verify client IP addresses
are being recorded
What You’ll See• All clients look like they’re coming
from one IP address
What’s Wrong• The proxy server or load balancer is
NATing (abstracting) the IP address• Difficult to diagnose specific client
problems when you can’t find them
What to do• Reconfigure the network to transmit
client IP addresses to the server
Split Path Networking
2. Lack of Monitoring
What to Check• Monitoring options available to you
What You’ll See• Nothing
What’s Wrong• You can’t fix what you can’t find
What to do• Install monitoring• Configure monitoring
1. Login Prompts
What to Check• IE settings• Time synchronization
What You’ll See• Prompts for login (like every 30
seconds)
What’s Wrong• IE with your web site not in the
Intranet zone
What to do• Set a group policy• Make workstations a member of the
domain
Claims
