Updated A glitch in HP's fibre channel adaptors has forced the company to do a world wide recall of the parts, but now the problem is apparently fixed. A representative from HP UK confirmed that there had been a problem with fibre channel adaptors using the GLM laser component. But, he said, the problem has now been fixed. "We've fixed it for our customers," he said. "Some customers needed component replacements and in other cases we've been into sites and swapped units out. He claimed that customers were satisfied by the fixes that HP has now instituted. A corporate user of HP equipment told The Register yesterday that he had other problems with kit including CPU failures, raid controller failure, multiple disk failures and backplane problems. HP was unable to confirm these reports. Another end user of HP boxes, independently confirmed the reports. He said: "The recall happened about September time frame. Basically there was both a hardware and a software problem. Once the bad batch (it was a rather large batch) of hardware was fixed and the latest patches installed everything was good. "Our site didn't really roll out fibre channel until late November, and we haven't had any hardware problems after about 20 systems installed (but the software support in HP/UX 10.20 is a real kludge). "The CPU problems I think were more of a supply problem, the ones I saw were on K580's. We had several failures, a few more than usual when dealing with lots of hardware, but not too many. Finding replacements, however, was so hard that a production server ran for a week with a dead CPU. That one seems to have blown over too." He said: "I'm not sure if by backplane problems your corporate user was referring to the N-Class memory controller problem, but that one is nasty. You have to shut the machine off to check whether you are affected or not. Of course, if you are getting consistent kernel panics you probably already know that you are affected". ® See also Gartner warns of Sun server reliability problems