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Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

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A 2007 NCSA Cyber Security survey revealed that a mere 4% of the population has a full understanding of firewalls. As business owner, you should be part of that 4% that has a full understanding.
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Free Tool: Port Scanner
LVL 8
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Data center, now-a-days, is referred as the home of all the advanced technologies. In-fact, most of the businesses are now establishing their entire organizational structure around the IT capabilities.
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coud
Learn about cloud computing and its benefits for small business owners.
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Expert Comment

by:Vipul Sharma
Comment Utility
Nicely explained...Cloud computing provides many features such as device independence, ease of use, Multi-user accessibility, that help business to be more efficient in their operations. Though these enticing features are that small businesses specially adore, if you have not switched to cloud yet you must be aware of these mistakes that many businesses do while switching to cloud: http://www.acecloudhosting.com/blog/3947_avoid-mistakes-when-moving-to-cloud/
Hope this might help. Again, Thanks for such a worthwhile read.
Cheers.
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Expert Comment

by:Nirmal Kant
Comment Utility
I really liked this article because I have very small business in Virginia Beach and I was always curious to know about this cloud technology. I am still running on old system and would like to upgrade it for the entire office and members so my work can be more efficiently and in synchronized way. My business is not online but i love to read about it these days and I am also in a communication with few strategy consulting firms like http://introviz.com/ and strategycio and they say moving to cloud would be the best option but how to know their how good their cloud support is? Should i completely rely on what they say? Please suggest
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Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc.

This document explains the different types of consoles, their advantages and disadvantages.
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by:DLeaver
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Marked as Good article, nice to have all the vendor information in one place.

I would add that the IBM Flex System Manager (FSM) is now being phased out and being replaced with the Lenovo XClarity virtual appliance.  Any existing FSM customers are entitled to the XClarity upgrade.
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Author Comment

by:Carlos Ijalba
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Thanks DLeaver,

And thank you for the info regarding FSM, it's good to know and a great addition to the article.
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this article is a guided solution for most of the common server issues in server hardware tasks we are facing in our routine job works.

the topics in the following article covered are,

1) dell hardware raidlevel (Perc)
2) adding HDD
3) how to increase the storage space and upgrade RAID.
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Hyper-convergence systems have taken the IT world by storm and have quickly started to change our point of view of how the data center should and could be architected. In this article, I’ll explain the benefits of employing a hyper-converged system such as offering integrated compute unit (memory & CPU) and storage in the same box instead of individual units. I’ll also provide examples of traditional data center issues that can be resolved with hyper-converged systems.

A remedy for storage headaches
If you asked me the most radical change brought by hyper-convergence systems, I would immediately say the simplification of storage configurations.

In conventional data center architecture, installing and managing storage has always been a troublesome process. After the installment of the storages, adjustment of the raid levels, entering zone settings in SAN switches, and the creation of volume and LUNs on storage, all the LUNs defined in vSphere have to be re-defined and adjusted according to vendor best practices. This is much more complex and open to errors than it seems, especially since improper storage configurations are a common cause of many ESXi issues. In addition to all these installment processes, this structure has to be consistently monitored and maintained. Once again, if you'd like to use various features including deduplication, volume backup, or volume replication, you need to get additional licenses to do so.

Now with hyper-converged systems, …
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Expert Comment

by:Danny Child
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Great article, very useful for me as a new starter with hyper-convergence.  Appreciate the links for further reading too.  Nice one.
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More or less everybody in the IT market understands the basics of Networking, however when we start talking about Storage Networks, things get a bit dizzier, and this is where I would like to help.
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by:Da_Ch0sen
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Let me know once you don if u remembered :)
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by:Senior IT System Engineer
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Great article indeed !
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Usually shares are where we want them for our users and we tend to take them for granted. There are times, however, when those shares may disappear causing difficulty for your users.

One of the first things to try is searching for files that should be on that share. You have to look for current files if these are being updated on a regular basis. In some cases you may find files that are the predecessor of those on the share.

 

Different Letters Assigned to the Drives

One possibility is that the server may have booted up and assigned different letters to the drives. We can use Computer Management to view disks, partitions, status &  assigned drive letters using an administrator account. You can get to Computer management via Start, right click Computer, & select Manage. In the Computer Management window you will find Disk Management under Storage. Hopefully the drive you are looking for is showing as healthy.

If the drive letter is wrong you can assign an available letter by right clicking on the partition and selecting "Change Drive Letter and Path". If the drive letter has already been assigned by another partition you will need to free it up by re-assigning the partition in question.
 

Devices Moved Recently - External Drive or RAID May not be Connected Properly


If devices have been moved recently then it's possible something got connected incorrectly. Search every drive you have connected and make sure you can …
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by:ericpete
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Congratulations! Your article has been published.

ericpete
Page Editor
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INTRODUCTION
The purpose of this document is to demonstrate the Installation and configuration, of the HP EVA 4400 SAN Storage. The name , IP and the WWN ID’s used here are not the real ones.

ABOUT THE STORAGE
For most of you reading this, you probably already know a bit about the product. For those that dont, the best description is obtained from the product page at : http://www8.hp.com/uk/en/products/disk-storage/product-detail.html?oid=3936205 which describes HP's EVA as :

The HP 4400 Enterprise Virtual Array (EVA4400) offers an easily deployed enterprise class virtual storage array for midsized customers at an affordable price. The EVA4400 fits well for customers looking for a high-performance, scalable, reliable and highly available storage solution that can be installed in just a few hours, offering tiered storage with support for high-performance SSDs and Fibre Channel drives or lower priced FATA drives. The EVA4400 brings a host of benefits in a virtual environment: ease of management with Command View EVA software, superior integration, broad operating system support, high availability architecture, dual-redundant design and 99.999% availability, iSCSI and FC SAN attach, and support of local and remote replication capabilities and disaster tolerance software.
The above link also has further information such as specifications and other technical features. Well worth visiting, but for now, let's get on with this Article.


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by:Senthil Kumar
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Thanks Mark.
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Expert Comment

by:Reuelbr
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Hello guys.

Please any of you could help me?

Actually I have on EVA with Brocade Switches, but now I need to add a second EVA, what I need to change on the first Command View?

Thanks.

Reuel
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The 6120xp switches seem to have a bug when you create a fiber port channel when you have a UCS fabric interconnects talking to them.  If you follow the Cisco guide for the UCS, the FC Port channel will never come up and it will say that there are no members available. So, after a week of beating my head against the wall I came up with a method and so far has worked every time.  I think the main issue is the ports never reset their port state until you specifically disable the ports and then bring them back up again.  So here are my steps as follows.


If the instruction starts with UCS then you need to do the step on the UCS, if it starts with MDS then you need to do it on the fiber channel switches.

1) Install Gbics and get the physical connectivity going.
2) UCS Config the new ports as FC uplink ports (May already be done).
3) Open Cisco Device Manager on log into the appropriate switch.
4) MDS (Device Manager)  click on interface then portchannel.
5) MDS Click Create.
6) MDS increment the ID by one from last portchannel if not done already.
7) MDS set "nontrunk, auto, force, portvsan # depending on the switch, then hit the ... to select interfaces that are in the port channel.
8) UCS create port channel do not add ports then disable it then set the appropriate vsan.
9) UCS add ports.
10) MDS while holding control.. Select all ports in the portchannel then right click one of the selected ports and hit config.
11) MDS in the popup window set the status admin…
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by:NAMEWITHELD12
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great article !

I am currently attempting to connect a cisco fabic interconnect to a MDS switch and then to an emc clarion CX 4480 via FC only .

to do this I am thinking that the first step is to set up the interconnect and then in your  step to is to configure the interconnect FC ports as FC uplink ports ,

I am very new to this and could use any advice you can give!
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Author Comment

by:Casey Herman
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Are you using multiple FI's and MDS's for Redundancy?  What model MDS I heard other models do not have this problem.  

Keep in mind (from what I have read and understand, feel free to correct me) that the failover for the FC is done via the server only.  In my example what I did is created a FC portchannel on each FI.  I have 2 vSan's 100 and 200. My MDS switch A carries all the 100 traffic and B carries all the 200 traffic.  So when I configure my UCS Portchannels FI A is set to vSAN 100 and portchannel on FI B is set to vSAN 200 and connected to their respective MDS switch.

So my 2 Gbics are 4 gig a piece in the portchannel. My sans have 2 adapters both 4 gig. Both sans are connected to both MDS switches for redundant paths.

Word of advice.. Build a server template with all vNic's vHBA's and everything you need. It will save some of the confusion later.

Create your MAC pools for your vNics and vHBA's.  So you can call one HBA_FabA and HBA_FABB. When it asks your for the naming scheme change one of the digits to A on the A side and B on the B side.  It makes it a lot easier to make sure your connections are connecting on the right vSan's / Adapters and vNics and what not.  

If I go into vmware I can look at the MAC for the HBA and can tell what vSAN it is on or if it was mapped incorrectly in the Service Profile that was deployed for that server.

The Ethernet port channel in version 1.43 of the UCS manager had issues as well. The only way I got that to work was to create it command line. Once I update to 2.01(t) all was right with the world. Make sure you set the vNics to their respective FI and enable failover. Did a failover test with a VM running on VMware and it worked like a champ. I was pinging it and only lost one ping. Also had a short hiccup on the server I was logged into while it was failing over. Both for the Uplink Ethernet Portchannel and the FC portchannel.

A tip for performance I have found in vmware is to manage the Datastore Paths and set them to Round Robin. Else it will only use one path and use the secondary as a failover only. I didnt want that. I wanted all links to be utilized equally. The UCS/FI's/MDS's all seemed to handle that well. I migrated (vStorageMotion) 33gig of data from one SAN to the other in under 3 minutes. I was quite pleased.

Getting started on the UCS is quite overwhelming at first. Eventually it all makes sense though.  Not to mention that nothing is really real except the actual physical connections. Even the memory is virtualized to the CPU.

I am still learning everything myself but I think I have it almost completely figured out.

Storage.pdf

See the above for my diagram.

Good luck!
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Portable, direct connect server access
Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Patch Management is administrated by page 129 of  the following document:
    http://support.dell.com/support/edocs/software/smdmc/11/en/ug/ug.pdf

However, there are issues with Patch Management with FTP (for instance, a slow Internet connection can cause the patch sequence to fail) so this method uses the Dell SUU from
    http://support.dell.com/support/downloads/

This method, when used with the user guide will allow you  to patch a server using the Dell management console, with the Dell server updates DVD.

Prerequisites:  THESE ALL MUST BE DOWNLOADED

1.  The latest Dell Server update Disc located at support.dell.com. Click Drivers and Downloads and then put your service tag in. Under the “systems management section” you will see “Dell Application- Server Updates DVD”  

2.  The Following Cab Files


UPDATES CATALOG

Home->Dell Patch Management for Servers Home
 
1.  Choose 2 from above ->Download updates Catalog-> Click local storage->Navigate to the path for these two files
     a. catalog.cab
     b. pre-req.cab
2.  De-select “only if modified”
3. Click save changes
4. Click “new schedule" under the save changes button and chose one
 
This process…
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Author Comment

by:louisreeves
Comment Utility
Patch management with the Dell Management Console may not work if the user hase no access to the internet or the internet connection is too slow. A slow internet connection could cause the Patch to fail.  Using the Dell SUU, it is sure to succeed.
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Requirements:

root access via SSH, telnet, or other.. Alternately, access from the server administrator to run a counter-strike server, and the proper access rights to do so. Enough free disk space (and allowed to use this much, eg disk quota): 600MB (CS 1.6), 800MB (CZ), 1.2GB (CS).

A fast internet connection (at least fast ADSL or Cable).

A decent computer, mattering on how many users (IMO : minimum celeron 1.8ghz, 512 mb of ram)

Now,

Login as root
adduser cstrike
passwd cstrike (give it a pw)

su cstrike (become that user)

cd ~ (go to your home directory, or wherever you want to run HLDS aka Half-Life dedicated Server from)

Alternately, we can assume our home directory is: /home/cstrike/

So we would type: cd /home/cstrike/

Step 1:
http://www.steampowered.com (get Steam now)

current link for linux hlds:
http://storefront.steampowered.com/d...updatetool.bin

Inside console type: wget http://storefront.steampowered.com/d...updatetool.bin

once it is downloaded, type the following:
chmod +x hldsupdatetool.bin
./hldsupdatetool.bin

*** You will now see the license agreement, review it carefully at your own risk ***

It will prompt for something like..

Do you agree: (type Yes)

Step 2:

./steam

** The current version of the steam client updates itself, if it just shows you a help menu, then read lower. **



Valid game types:

Half-Life 1
------------
"cstrike" - Counter-Strike 1.6
"dmc" …
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Server Hardware

26K

Solutions

12

Articles & Videos

23K

Contributors

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.