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May
29
comment Which two disks can be safely removed from raid 10?
Still, that's some scary stuff. If mdadm had done abcd / bcad, you'd be wishing you had raid10 all and then built partitions on top. I wonder if it's a lucky shot that it just switched a/c.
Dec
1
comment Database server: Small quick RAM or large slow RAM?
For some people, a million rows looks like "plenty and plenty of data" Hardly a reason not to have everything in memory though ;)
Nov
21
awarded  Critic
Nov
21
awarded  Supporter
Nov
21
comment Database server: Small quick RAM or large slow RAM?
Of course, this depends on database size - basic details but important still.
Sep
27
awarded  Yearling
Sep
5
comment Are there any free NFS clients for Windows 7?
nekodrive may work for some people but overall it's just buggy at best. because dokan, which it's based on, is also full of bugs.
Oct
12
answered How can I attract more Spammers hitting my Spam traps?
Sep
29
comment 100% uptime for a web application
And .. he doesn't want me to edit, so here are the details : i.e. have the app talking to both servers at all times, and add a mechanism that will trash the unused duplicate <answers to calls> (like don't listen to second if first was ok, send every message to both appservers) at app level, with a clean replication at the appserver level (i.e. avoid duplicates @ replication time through simple checks based on app. arch - like transaction id's given by the app or whatever.).
Sep
29
comment 100% uptime for a web application
On the 100% uptime, you can offer "some" of it if you like, it's possible for example to offer 100% uptime on the application but not on the service, i.e. guaranteeing that there will be an appserver to answer calls at all times - which by itself still means the service could be interupted due to DNS, ISP, etc. failures. You can guarantee with a few hundred servers in a few hundred locations that at least one will be alive at any given time - either way if it's not, your client won't be able to notice anyway ;)
Sep
29
comment 100% uptime for a web application
So, you have agreed with your client that you want some seriously high uptime (not 100%) and you still have an issue with app to appserver communications. I thought about this quite a few times and it seems to me you could do something in order to make your app-appserver link redundant, i.e. have the app talking to both servers at all times, and add a mechanism that will trash the unused duplicate <answers to calls> at app level, with a clean replication at the appserver level.
Sep
29
comment Statistics about php setups / What extensions are installed by default
Is the question : "what percentage of php instances from providers give you access to this extension ?" or "what percentage of php instaces have Mcrypt enabled ?". If the question if the first, you can have your answer quite easily, just do it by hosting provider / number of instances served, I'm pretty sure you can cover the top providers quickly. I can see sites collating the info about hosting providers - not about specific individual PHP instances (which are a minority anyway).
Sep
28
awarded  Nice Answer
Sep
27
awarded  Teacher
Sep
27
answered Database server: Small quick RAM or large slow RAM?