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Archive for November, 2006

A virtual appliance is a network service that is preconfigured and prepackaged to do useful work. We don’t buy dryer parts to construct a dryer, and we shouldn’t be constructing, in most cases, many components of our business systems. The only reason this practice persists is the nature of the business of buying and selling useful […]

I’ve got my 23″ Cinema Dsiplay working with the SunRay 1G. It was a bit of an RTFM thing. You must configure the SunRay for auto-resolution for the X piece /opt/SUNWut/bin/utxconfig -r auto and then set the default resolution for the SunRay hardware piece. /opt/SUNWut/sbin/utresadm -d -c IEEE802.00144f215fd8 -t default /opt/SUNWut/sbin/utresadm -a -c IEEE802.00144f215fd8 -t default 1920×1200@60d The steps are […]

Complexity and Resilience

I’m convinced that exposed complexity contributes to more outages than any other technical factor. The operational or human sister to this is inadequate configuration management. Unless we ruthlessly squash non-value added diversity and complexity, our systems become unmanageable, and are crushed by their own mass. The advance of technologies like Ruby over J2EE and MySQL over […]

I’ve been configuring a Solaris 11 build 48 (Nevada) virtual machine for a few days now, and have run into a couple of items Mr. Google was less than helpful with. I believe some of this has to do with the typical audience that tackles such things: there’s not much advice for the novice. I’m […]

Dapper?? Edgy?

In Cheap iSCSI Target Built, I wrote that I didn’t know what Dapper was and didn’t install it. I’m probably the last person on earth to realize it, but Dapper is apparently a version of Ubuntu. I installed on the just released Ubuntu Edgey Eft, and it works quite nicely.

edgyeft, iSCSI, ubuntu

The cheap iSCSI target I’ve put together may have better performance than I expected. Vdbench tests with 128K sequential writes are between 5 and 10 MB/sec. The performance is more variable than it should be. There is likely some aliasing between various parts of the stack: network, VMware block-size, iSCSI target configuration and so forth.

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Cheap iSCSI Target Built

I’ve taken an old Dell machine and made an iSCSI storage target from it. I added a firewire card so I could easily add drives. It’s using Ubuntu Linux 6.10 and the iSCSI Enterprise Target iSCSI target implementation. Instructions from the Ubuntu forum were good, I needed to add “sudo” in front of some of […]