Category: server

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, …

Continue reading

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 …

Continue reading

NETGEAR RECALL

Netgear has reported that four of its product lines that use the Intel Atom C2000 line of processors may experience “higher-than-normal failure rates” and that it is contacting affected customers to assess whether replacement or repair is appropriate. ReadyNAS devices RN3130 and RN3138, and Wi-Fi managers WC7500 and WC7600v2 all have Atom C2000 processors. We …

Continue reading

INTEL ATOM C2000 CPU FAULT

Screenshot (221)

The Intel Atom C2000 processor is widely used in embedded applications. Cisco has issued a warning that versions of its routing, optical networking, security and switch products prior to November 16, 2016 are unreliable – and may fail in the next year and a half, rendering affected hardware permanently inoperable. Apparently there is an issue with …

Continue reading

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 …

Continue reading

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 …

Continue reading

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 …

Continue reading

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 …

Continue reading

LSI MEGARAID SAS 9260-16i

High drive count support for internal server and storage systems. PCI Express® 2.0 provides faster signaling for high-bandwidth applications PCI Express 2.0 x8 Compliant Connect up to 128 3Gb/s and 6Gb/s SATA and SAS hard drives Four Mini-SAS SFF8087 4i internal connectors 512MB 800MHz DDR II SDRAM RAID 0, 1, 5, 6, 10, 50, 60 …

Continue reading

4K SECTORS

Historically hard disks used 512 byte sectors. Early hard disks had very few sectors on a track so it was considered a good compromise at the time. Over time, however, disk capacity grew exponentially to the point where the number of sectors on a track became unwieldy. Seagate and WDC both adopted the move to …

Continue reading