The primary unease of most database administrators (DBAs) was file storage space. The majority of our time was spent monitoring disk space usage and optimizing how much was being used and how much was accessible. That still occurs today, but has been expanded to match today's more composite DB systems. We identify this FAM and DAM or FAM-DAM (file activity management, database activity management).
These activities for the DBA generally boil down to monitoring three things:
• Event logging (on the host server)
Passive network traffic monitoring on the host server
Agents or client software on individual machines
In the idiom of the DBA, FAM-DAM is where most of the daily work `occurs. With effective FAM-DAM, most nightmare scenarios and serious problems can be avoided. It's especially important on today’s cloud-based and virtual software services.
Let's observe each of these three monitoring techniques and how they help the DBA (and hence the administrator's clients) keep a database robust.
Event Logging (on the host server)
Most services on any kind of server will log the events that occur inside that service. These have restricted uses for service-specific monitoring and problem diagnosis, but server-wide, they are not as helpful. Logging for the entire server is frequently turned off by default in order to save resources, but most capable DBAs will use log-and-event managers. These remain the otherwise huge event logs from getting out of hand.
There are dozens of tools for this, the majority server-type-exact. Without a good event log, though, an administrator not only can't effortlessly monitor what's occurrence on the server itself, but also can't easily back-track to repair troubles. 90% of restoration and revamp actions are in diagnosis. Cutting down as much of that as probable saves time and restores services earlier.
Passive Network Traffic Monitoring (on the host)
To go together with host server logging, monitoring the network's traffic that feeds both that host server and all connected services is significant. Meaningful the traffic patterns and frequencies in FAM-DAM for database servers tells the DBA not only what to expect, but where improvements or changes can be made to better provide somewhere to stay traffic spikes.
The methods of monitoring traffic are myriad. Software answers for smaller networks are a frequent low-cost solution while hardware alternatives for larger area networks are improved at conserving resources. These given DBA information on which clients are right to use and when, how the applications or database is reacting to those requests, and how rapidly the information is flowing in either direction.
This information can establish crucial when upgrading or changing network reserves. It can also be a key when troubleshooting difficulties on the network or individual applications. Many app crashes are purely due to access overload.
Agents / Client Software on Individual Machines
Smaller networks, particularly wide area networks (WAN) to which multiple clients (computers) are accessing the database from a variety of locations, will employ monitoring software on individual machines accessing the network. On smaller networks, actually, this solution often gives an all-in-one way to monitor mutually servers and the network traffic as these clients can supply information from individual machines to the master machine on the DBA's desktop.
Costs for these systems can rapidly mount as an organization grows, however, consequently most DBAs consider this a stop-gap or temporary, small network answer to be replaced later.
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Resource article: http://www.expertsbuzz.com/
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