Check this out:
RHN Fail
Yeah, that’s what you see when you visit rhn.redhat.com — which you need to use to administer redhat subscriptions. I can’t get my servers to subscribe while the site’s down, and I can’t manage my entitlements or buy new ones.
One of my consulting projects has been on hold for days while RHN sorts itself out. Worse, you can’t even log in to report the problem. If you click on the “contacting us” link, you get taken to a page with a couple of mailing lists. Well, why join a mailing list? I know the site’s down. I want to file an engineering report. I click the last option, which is supposed to allow me to file such a report. It says I need to log in to file a report. FAIL.
It does seem that there’s some awareness of the problem. Poking around in the rest of the redhat.com domain, I got messages like this:
Why’s Redhat losing market share? They can’t even run a website well. Who’s going to trust their server distro when they can’t get a website right?
If you’re using raw access to storage LUNs with VMWare, and you’re using Windows, you can use the LSI Logic SAS virtual SCSI adapter option and create virtual drives. This is better than using the Microsoft iSCSI initiator because you can edit the drive mappings with the machine powered off and you can clone the machine and easily redirect all of your storage before powering the machine on.
The correct driver to be using is the LSI SAS 1068 driver. You’ll need to make a floppy image using an image tool — if you’ve access to a linux box, …
GhettoVCB – VCB for free. Doesn’t get better than that.
Software problems are the #1 thing that will keep an Airbus A380 on the ground. Yes, airplanes are complicated things … but at the same time, not much is required to keep most of them in the air.
The thing that speaks volumes to me about these problems are a few key quotes.
Clark says that the problem with the nuisance warnings has been their diverse nature, but “the common thread” is the software. He says Airbus executive vice-president programmes Tom Williams and his team “have sat in my office many times and said they can’t identify trends, which
…
In the last issue of my current consulting saga, Detecting and Resolving LAMP Stack Performance Problems, we talked about a Drupal site that was being brought offline every few hours due to poor tuning of the LAMP stack. With the default settings, a site isn’t going to take much before it just falls flat on it’s face.
After triaging and addressing the main issues based on the logs, we were left with two more issues. The first was the inability of Drupal to perform well in an environment where it had to rebuild every page from source for every …
As a sysadmin, we sometimes run into performance problems with multiple angles and portions. It’s sometimes not particularly obvious where the actual performance problem is, and resolving one problem that you can see might bring another couple of problems to the surface.
The below comes from a consulting gig that I’ve been working on recently. The parties will remain nameless. I’m going to break this into several parts, since it took over three weeks to resolve all of the immediate problems with the site, and we’re still not all the way done with the task list.
Going in, I knew …
At the Sun OpenWorld conferene keynote today, there were a few new products listed in the Flash storage arena — most notably the F5100 that everyone’s jibber-jabbering about.
As a smaller customer, I’m far more interested in the SunFlash F20 PCIe card — which I don’t see many people blogging about. Looks like I could add that to not only my existing systems, but non-Sun systems that can make use of that sort of storage. That, ladies and germs, is something worth the name “OpenWorld” — as in, a world of open wallets.
- vSphere, SAN or iSCSI-related:
- Using iSCSI with vSphere – Pretty much the bible, they covered it all.
- 2TB drives are here, but Stephen Foskett identifies the issues with bringing them to the enterprise. In the same vein, he covers the death of RAID as a storage technology, and what lies beyond.
- I need to research if our iSCSI TOE cards are supported by vSphere…
- Ubiquitous Talk might be my new favorite high-quality techie blog.
- Other:
- Streaming live webcams to your iPhone
- This has been linked all over, but the Ghost Fleet of the Recession is anchored just off
…
Despite the recent pot-banging around the Sun/Oracle merger and the allegations that Sun’s getting it’s customer base stolen out from under it, I just pushed the button on a fairly large cluster with Sun as the hardware vendor.
Simply put, I couldn’t find machines with better stats for the money. Even with the academic matching grant program tabled for now, we STILL got amazing promotional pricing on the x4150. I can’t even find anything that can compare to an x4250 for on-board storage — 16 on-board drives. Dell’s MD1000 chassis supports only .. 15 drives. There’s no better hardware …
It’s Monday morning. Your boss strolls into your office. You just finished with the trouble tickets from the weekend, and this is his favorite time to ruin your entire week. He says, “I have a project for you. I need a cluster with a primary and backup SAN that is going to store about 8TB of infrequently accessed images and it will also need to host virtual machines and an Oracle database. You’ll have to fit a budget for two sites in there, but the second site is a cold, hourly-synch backup. And it has to scale. And we’d prefer …
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