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How reliable are the web servers?
NomikOS




msg:1568053
 1:00 am on Oct 8, 2005 (gmt 0)

How reliable are the web servers?

I mean: what level of error on servers (energy,hard disk,etc.) must i have to take into account?

Because I think than one little error in management of the database while run my scripts can cause bigs problems.

Comment please.-

 

aspdaddy




msg:1568054
 9:24 am on Oct 8, 2005 (gmt 0)

I'm noo expert on this but in my limited experience only these are the things to keep an eye on...

Surge protection and UPS depends on the location. I have found remote country locations have power failure whereas innner city needs surge protection only.

Hardware RAID 5 and 4hr vendor replacement deals with disk failure. Job done. If you are really paranoid carry a spare as well.

Recent bakup and a solid backup plan deals with recovery.

Too muc heat in the server room over say 85 regularly and the servers can start closing / re-booting.

Good quality servers e.g Compaq and quality OS installations are key to reliability/uptime.

A brand name uncontended lease line or burstable hosting agreement and SLA gives close to 100% connectivity and sufficient bandwidth for your normal traffic levels.

HTH

BwanaZulia




msg:1568055
 11:07 am on Oct 17, 2005 (gmt 0)

Rule #1: Things will fail.

If you trust Rule #1 and plan around it you will be ok. It might be the hard drive, the CPU, the memory, the nic card or some other part in the server, but it will fail. My experience is that drives die the quickest and anything older than two years is asking for trouble.

So, implement a great backup strategy that not only has an offsite implementation but a clear and written strategy on how to get things working again.

BZ

NomikOS




msg:1568056
 11:15 pm on Oct 17, 2005 (gmt 0)

Yes, you right. I did know it, but sometimes seems too much work to do and I haven't got much time.

The best is going step by step :(

Thanks to both of you.-
NomikOS

SEOMike




msg:1568057
 3:12 pm on Oct 25, 2005 (gmt 0)

innner city needs surge protection only

Not true. I've got battery backups on every one of my machines and on my server rack. I'm glad I do because at least once or twice a quarter my power is out for more than 30 minutes. If not for the batteries, I could never survive. For me, power outages have been the only time that my machines have ever gone down. I bought batteries with interfaces that will shut down my machines safely for me so if they run out of life, everything is ready to go when the power comes back up.

Good luck!

DamonHD




msg:1568058
 8:33 pm on Nov 3, 2005 (gmt 0)

YMMV on power in cities of course...

I have my primary servers at home in London in a back bedroom (!) and power problems are on the whole very infrequent and minor. I have seen nearly the same level of power problems in top-quality co-lo. Physical access is valuable to me and security is not an issue (I wanna watch a con try to flog a SPARC1 (20MHz?) and a 486DX down the pub!).

Home hosting suffers from heat (over 30C and you are getting into trouble) and being on the end of a long thin wire from the rest of the Net (for example I am getting 6% packet loss at the moment).

To balance these disadvantages out out I have hosting (eg of DNS secondary and site mirrors) in co-lo, spread out over the world.

(Actually, when I was one of the UK's first ISPs I *did* run it from home, and power was the least of my troubles!)

Rgds

Damon

aspdaddy




msg:1568059
 12:03 pm on Nov 4, 2005 (gmt 0)

Its all down to budget, a nice rack mounted 3000VA costs a grand, a decent ultrim drive the same price at least.

A surge protecter from pc world costs 40 and dat drive 200.

Both options will protect and backup a webserver.

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