Category Archives: Storage

Analyzing Storage Performance issues with PerfMon

Posted on March 4, 2019 by Computer-Tech-Blog

Perfmon is a built in Windows utility that measures performance, it has been introduced in Windows 3.1 and has shipped with every version of Windows ever since. I think every admin should become a little bit more familiar with it … Continue re...

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EqualLogic PS4100E SAN Adding a second member to a group through a serial connection

Posted on February 19, 2019 by Computer-Tech-Blog

We have a PS4100 EqualLogic storage array that was running out of space. All the drive bays were full so we ordered another unit. I set it up as RAID-50 and added it as a second member to the group. … Continue reading →...

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EqualLogic PS4100E SAN Configuring the first member initial config

Posted on February 17, 2019 by Computer-Tech-Blog

Working for a service provider i received a great opportunity to rack and configure a storage array. There is nothing better then unboxing a fresh SAN and peeling off the stickers. Each storage controller has two network interfaces eth0/eth1 for &hel...

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How to set up SQL Server 2014 AlwaysOn Availability Groups

Posted on July 7, 2016 by Computer-Tech-Blog

There are many different ways that you can configure SQL for high availability, mirroring, failover cluster using shared disks, AlwaysOn, log shipping, replication.  This guide describes how to configure an AlwaysON Availability Groups in SQL Server...

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How to install ESXi from a USB flash drive

Posted on March 16, 2014 by admin

Here are some steps how to install an ESXi host from a USB key.  If you have a host that does not have a CD drive or if you have a stubborn USB key that does not want to boot … Continue reading →...

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Configure an SMB server accessible without a user or password in RedHat / CentOS

Posted on February 26, 2014 by admin

Here is a quick way to configure an Samba server accessible by everyone without a username or password.  The below has been tested in CentOS 6.5. Install the Samba service and create a directory yum -y install samba mkdir /mysamba … Continue ...

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Present an NFS share in Windows Server 2008 R2 or Windows 8 to use with VMware ESXi

Posted on February 25, 2014 by admin

There may be times when you need to present an NFS share from a Windows machine for your home vCenter server lab or for testing purposes, here is a quick step by step how to present an NFS shares to … Continue reading →...

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How to Present and Mount an NFS share in RedHat / CentOS

Posted on February 11, 2014 by admin

Here is a quick guide how to present and mount an NFS share in RedHat / CentOS including Iptables configuration. By default Iptables blocks the ports required to connect to an NFS server, although the NFS server mainly uses UDP/TCP … Continue ...

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Boot Openfiler 2.99 from a USB flash drive

Posted on February 15, 2012 by Computer-Tech-Blog

Install and Boot Openfiler 2.99 from a USB Flash Drive I have been playing around with ESXi server lately and needed to set up iSCSI shared storage to take advantage of the more complex features.  Openfiler 2.99 has received a … Continue read...

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Step-by-step guide how to set up SMB file sharing in Windows 7

Posted on February 9, 2012 by admin

Setting up and accesing an SMB share in Windows 7 There are a few ways that you can set up an SMB share in Windows 7. In this article I will show you how you can allow only authorized users … Continue reading →...

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