Posted on May 3, 2008 by Gaurav Verma
A special need..
Those of you who have a need for exposing iscsi targets to other machines for discovery, but who do not want to invest in an external USB hard disk OR who do not want to have a USB external hard disk connected to a desktop 24×7, there is a better way of [...]
Filed under: 10g RAC, SAN, Virtualbox, external hard disk, host only networking, iscsi initiator, iscsi target, linux, open-iscsi, oracle | Tagged: /dev/hda, /dev/sda, Gutsy gibbon, hardy heron, host only networking, iscsi, iscsi initiator, iscsi target, iscsiadm, logical volume, LUN, open-iscsi, openfiler, physical volume, Ubuntu, USB external hard disk, volume group | 4 Comments »
Posted on May 1, 2008 by Gaurav Verma
Preface
After playing around with some open source technologies like virtualbox and openfiler, we are finally at a point when it is possible to create your own network lab of Oracle 10gR2 RAC cluster and ASM database using iscsi targets in an external hard disk drive. The last time I checked, USB 2.0 hard disk drives [...]
Filed under: 10g RAC, DHCP, SAN, SUSE linux, USB external hard disk, Virtualbox, Virtualization, external hard disk, host only networking, ifconfig, internal networking, iscsi initiator, iscsi target, linux, linux-iscsi, open-iscsi, openfiler, oracle, static, windows host | Tagged: 10g, 10g RAC, high availability, host only networking, linux-iscsi, LUNs, NAS, network lab, open-iscsi, openfiler, oracle, private networking, SAN, SUSE linux, Virtualbox | 1 Comment »
Posted on May 1, 2008 by Gaurav Verma
A common problem…
If you are using openfiler, at some point of time, you are bound to reboot the openfiler OS/machine. After the reboot, a common problem is that openfiler forgets or loses the logical volume/volume group information.
So, as a workaround, you need to issue the following commands:
################################
# to discover the volume groups
################################
# vgscan [...]
Filed under: Virtualbox, iscsi initiator, iscsi target, linux, linux-iscsi, network attached storage, openfiler | Tagged: dmesg, iscsi, iscsi target, logical volume, LUN, no luns detected, openfiler, volume group | 1 Comment »
Posted on April 25, 2008 by Gaurav Verma
Preface
Sometime back, I installed Openfiler on a external hard disk (manufacturer: Iomega)that I had at home (running Windows Vista Home Premium). This was meant to be a proof of concept and pretty soon, I had to bring it to office desktop (running Windows XP SP2) to make it work with some other virtualbox virtual machines [...]
Filed under: USB external hard disk, Virtualbox, Virtualization, external hard disk, network attached storage, openfiler, windows host | Tagged: /dev/sda, /var/log/messages, detect, enabled, fdisk -l, openfiler, scsi, USB device, USB external hard disk, virtual machine, Virtualbox, windows | 6 Comments »
Posted on April 21, 2008 by Gaurav Verma
Preface – Celebrating Openfiler
Ever since I came to know about openfiler, a free open source network attached storage appliance, I could not wait to get started on it! Compared to similar open source products in the internet like FreeNAS, openfiler has much better reviews from the user community.
In this article, we will talk about how [...]
Filed under: SAN, Virtualbox, Virtualization, external hard disk, host only networking, network attached storage, open-iscsi, openfiler, windows host | Tagged: external hard disk, initiator, linux, network attached storage, node, open-iscsi, openfiler, SAN, session, target, Ubuntu, usb, virtual machine, Virtualbox | 1 Comment »
