The availability tag has no wiki summary.
-4
votes
0answers
32 views
How to increase the I/O on a virtual server? [closed]
We have couple of virtual servers with Win 2003. One particular server serves as the file-host for other servers and other server components process files from the host. We need to increase the ...
-1
votes
1answer
66 views
Choosing a database management system to maximize availability and scalability [closed]
If I was planning on choosing a database management system and know that the data needs to be available as close to 100% as possible and that it needs to scale as well as possible, is there a "best" ...
1
vote
1answer
90 views
How to check if redis master is OK?
On the documentation, they advice the monitor command. But it has a 50% performance penalty for the whole system, and how should I do that ? Whatching the ouput using SSH until I don't see anything ?
...
0
votes
2answers
103 views
Immortal application
(TL;DR: last paragraph)
I'm running an online service and have thusfar been doing offline backups and simple monitoring to achieve resilience and availability.
Resilience is rather manual but I'm ...
2
votes
1answer
370 views
Determine availability zone of AWS IP address
I'm currently using Heroku (which uses AWS) and my program needs to communicate with my own EC2 instance. I've made my EC2 instance in the same Region as Herokus', however, in order to reduce costs ...
62
votes
12answers
7k views
Is Ping a reliable way to check if a server is available?
In my application I am pinging a server and waiting for a response. I am using this to determine whether the server is available and responsive or not.
Is this a reliable way of determining ...
2
votes
0answers
178 views
Exchange 2003 to 2010 migration: Can I remove free/busy public folder once all users are moved?
Now that all my mailboxes are on the 2010 server, can I remove the schedule+free/busy public folder? I am having scheduling synchronization issues, and I believe it may be at fault. All clients are ...
2
votes
5answers
256 views
Check availability of my websites
How can I check the availability of websites from hosted by company?
Ping the server and checking if the services for IIS or Apache/Tomcat
is not enough. I want to see if the sites are responsive, if ...
4
votes
4answers
303 views
System Monitoring Redundancy
I consult in a small business environment where I have two HyperV hosts (with <10 VMs) + a couple other servers.
I recently had an issue where one of the HyperV hosts had a CPU issue and it came ...
1
vote
1answer
103 views
Swapping db's to increase availability during database update
I have a SQL server database with data supplied from a 3rd party. They supply a tool to update the database data weekly. The tool is pretty old and uses ODBC. The update can take several hours. In ...
0
votes
4answers
288 views
ngnix reverse proxy
Most of the configuration and example I've seen out there, the backend server are either on the same machine or the same network network. Has any body done this with backend servers located in ...
0
votes
1answer
50 views
Fixing the accesibility of a webserver
I have my server, which is hosted in datacenter, and there is a website and a database installed on this server. DNS servers for the domain name are the default ones of the domain name registrator.
...
1
vote
2answers
83 views
http server connectivity puzzle
I have been seeing some strange connection issue in the production environment.
The setup has two IBM Http Server's (IHS) and a network IP load-balancer in front of them (round-robin).
One instance ...
1
vote
2answers
852 views
Lifetime of IIS worker process or AppDomain
I have an ASP.NET app hosted in IIS, and I have automatic worker process recycling/shutdown disabled. I'd like to have a rough idea of how long the app has been running continuously without being ...
3
votes
5answers
2k views
uptime.exe crashing on Windows Server 2008
Can anyone get uptime.exe to run either the /s or /p:n switches on a Windows Server 2008 box without crashing?
I realise it's a NT tool and no longer supported, but it worked fine on 2003. I've ...
1
vote
2answers
172 views
How can I tell which package updates will require a reboot or service restart?
One of our boxes is running Ubuntu 8.04 LTS. Most Ubuntu package upgrades are trivial and don't affect availability much. How do I tell which packages are going to cause an outage before applying ...
