Category: storage

PENDING SECTOR COUNT

Ordinarily hard disks operate transparently. Any problems are handled by the drive logic. Disks in use may find problem sectors or tracks and they then map spare area into the block number table when the error correction cannot cope. badblocks -sv -b 512 <device-name> If the disk is one of the newer 4K sector designs, …

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HIGHPOINT SSD7101A SSD CONTROLLER

The HighPoint SSD7101A is a PCI Express 3.0 x16 card with four M.2 slots on the card. Using the recent Samsung 2TB M.2 SSD cards, it’s possible to install four of them for a RAID0 array of 8TB. Such an array can achieve 16GB/s with fast enough SSD drives. The card routes each M.2 slot …

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COMMON HARD DISK PROBLEMS

Forums are full of posts with people inquiring about a disk that is not working. One of the most common problems is due to BIOS errors. Its advisable to use BIOS defaults and only select AHCI for modern hard disks only. Even modern UEFI boards default to IDE for legacy operating systems. If the hard …

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ARCHIVING DATA

One of the challenges in the digital era is coping with the EB of data that are flooding servers almost daily. NASA had one of the biggest headaches. NASA historically used magnetic tape in vast amounts. Sadly many of the racks of tapes were damaged and could not be read. One report we saw spoke …

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ST2000DM001

The new Seagate ST2000DM001 is high capacity 2TB disk with 500GB on each side of 2 plates. Operating at 7200rpm, the ST2000DM001 manages to reach 120MB/s of bandwidth. Seagate decided that the performance loss of moving to 5900RPM wasn’t justified by the power savings. It believed that by introducing a more power efficient 7200RPM drive it …

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MARVELL 88SE9705 8-PORT PCI EXPRESS RAID

PCI Express 2.0 x2 SATA 600MB/s 8 SATA III channels RAID 0, 1, 5, 0+1, JBOD 48-bit LBA ATAPI CD/DVD/BD support Plug & Play Marvell 88SE9705 chipset Ports: 8 SATA 6Gb/s Ports Compliant with PCI-e Specification v2.0 and Backward Compatible with PCI-e 1.x Supports Native Command Queuing (NCQ) Compatible with SATA 6G, 3G and 1.5G …

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TOSHIBA DT01ACA300

The Toshiba DT01ACA300 is a standard 3TB SATA III hard disk. Toshiba returned to the hard disk business after buying Hitachi’s hard disk unit in a deal with WDC. With the return of Toshiba, there are now three vendors manufacturing 3½” hard disks. Concerns that Toshiba was not committed should be allayed as the DT01ACA300l is …

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IOCREST 88SE9215 4-PORT PCI EXPRESS

The Marvell 88SE9215 features an integrated ARM based CPU to provide full AHCI support. The 88SE9215 uses PCI Express 2.0 x1 to support 4 SATA 600 ports. PCI Express 2.0 x1 SATA 600 MB/s 48-bit LBA ATAPI CD/DVD/BD support Plug & Play The Marvell 88SE9235 and 88SE9215 can be used for embedded platform applications such as home …

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ST3000DM001

The new Seagate ST3000DM001 is high capacity 3TB disk with 500GB on each side of 3 plates. Operating at 7200rpm, the ST3000DM001 manages to reach 120MB/s of bandwidth. Seagate decided that the performance loss of moving to 5900RPM wasn’t justified by the power savings. It believed that by introducing a more power efficient 7200RPM drive it could deliver …

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ST3750525AS

By now the world knows that Seagate Barracuda 7200 drives, from the world’s premier storage provider, deliver years of reliable service and high performance. This is a product family that has been strengthened and refined over 12 generations. It embodies the highest levels of reliability, performance and capacity. And this latest generation is a leader …

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