LINUX IS A CANCER

Microsoft CEO Steve Ballmer said that “Linux is a cancer that attaches itself in an intellectual property sense to everything it touches,” in the Chicago Sun-Times on June 1, 2001. He objected to the idea the GPL forced all further development to continue to be open source. Open source is a solution to abandoned projects. GPL is …

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INTERNET DOMAINS

We have used Linux since 2000 when it was first available. Previously we used BSD Unix. Open source has the advantage that when the developer becomes unavailable then the code can be maintained by new developers. Open source has allowed developers from around the world to flourish while reducing costs. The main focus of the …

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OPEN SOURCE DEFINITION

One of the founders of the open source movement, Bruce Perens, who had previously drafted the Debian Free Software Guidelines (which would be adapted to become the OSD), puts the date at February, 9, 1998, when he published an announcement of the OSD. Debian is one of the early distributions of Linux. Free and open source software meant anyone …

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MAXTOR 7540AV

The Maxtor 7540AV is a large capacity 540MB hard disk. The 7540AV is slightly larger than DOS  could manage with on 8088 or 80286 based machines. Maxtor also had larger SCSI disks up to 1.2GB but they were very expensive and DOS limitations reduced their appeal. This disk was $550 new in Q1 1994. 540MB …

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EIA-310-D STANDARD RACKS

The EIA 310-D standard rack is 19 inches wide for servers, This has been in use for many decades as data centers galore can then use commodity machines for various purposes. EIA racks units are 1¾ inches. So generally servers are 1U, 2U or 4U however some blade boxes may be as large as 10U. …

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QUANTUM PRODRIVE LPS52AT

Jumper Position Operational Mode DS SP On Off Single Drive configuration On On Master Drive Off Off Slave Drive Off On Self Seek test selected 52MB 751 cylinders 8 heads 17 sectors 751 landing zone 3600rpm 65535 write precompensation* The LPS52AT (950-5-9105) does not requires write precompensation. Its supported for BIOS compatibility reasons. When we acquired …

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SSD RELIABILITY

Solid State NAND based flash drives surfaced in 1991 when Sandisk introduced a 20MB product for $1000. Since that early drive, prices have fallen considerably. NAND based SSD products have come in a rage of form factors however the focus of this study will be with SATA drives. Eventually we may add second section for …

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FIX HARD DISK CLICKING

First off you should own lots of disks so that redundant copies of important data does not get lost. This guide is not an easy solution and a disk may be wiped when repaired. The clicking sound is generally caused by a faulty logic board. Replacing the logic board requires the exact make and model disk …

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FAILED HARD DISKS

Every data center has had it fair share of disk failures. So far we have experienced very few disk failures. Clicking sounds, for example, indicate that the head is seeking back and forth and the disk does not present to the BIOS etc. We experienced 2 failures with 500GB disks arising from changes in soldering. The …

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OUR EIDE DISKS

ATA disks, later called EIDE, were introduced in 1985 with a lower cost controller board. The control logic was moved to logic board on the disk assembly which free manufacturers to design new products more easily. The 40-pin cable was eventually replaced with an 8-conductor wire to allow for higher speeds. EIDE hard disks are …

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