Plextor PX-712SA Serial ATA DVD+/-R/RW Plextor announced the PX-712A, an internal EIDE DVD+/-R/RW drive with support for 12X DVD+R and 8X DVD-R recording. The drive includes an 8MB buffer and buffer underrun protection and is compatible with Mac OS X and Mac OS 9.2, as well as Windows. (The software bundle is for Windows only.) The wait for Serial ATA optical drives is finally over, at least in Japan. Akiba PC Hotline managed to snag a of Plextor's DVD+/-RW drive in the wild. According to Plextor's US site, the PX-712SA will be available in mid-June.
Pre-orders are currently available at a price of $229, which is only $20 more than a 'parallel' ATA version of the same drive. By - 03:13 am, June 10, 2004 Last edited by TZ; at 11:14 AM.
The motherboard that I got is an Intel D975XBX2 with 3 PCI-E 16 slots. To install a LSI LOGIC LSI00151 PCI Express SATA / SAS Eight-Port. DRIVER FOR INTEL D975XBX2 SERIAL ATA CONTROLLER - I've got a BX2. Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X.
The SATA boot drive launched apps 6% faster than the FireWire 800 boot drive, even though the FireWire 800 boot drive was actually a dual drive hardware RAID set. The Ultra320 SCSI boot drive was 12.7% faster than the FireWire 800 boot set, but was only 6.4% faster than the SATA boot drive.
Hackintosh - Running OS X 10.7.5 On A Intel D975XBX2 Based PC. Neat software by the name of MacDrive 8 that allows a PC to read and write Mac disks, CDs and DVDs. There are three SATA II drives on the secondary SATA controller.
Since the Ultra SCSI drive costs quite a bit more and stores quite a bit less than SATA or PATA drives, I don't think the investment is justified. Our Power Mac testing was cut short because the G5 started crashing on startup. It continued until I removed the Ultra SCSI controller. Once we troubleshoot that nasty problem, we'll try to add more graphs to this section. SOURCES OF TEST PRODUCTS The Aluminum G4/1.5GHz PowerBook was purchased by the Bare Feats lab from the local Apple Retail Store. It came with the 'stock' 4200rpm 80GB drive.
We've been embroiled in hundreds of hours of testing using several different TCQ-enabled controllers in conjunction with arrays of 1 to 4 WD740GD drives. Unfortunately, many hours of tests remain. However, we're eager to present some initial results.
Stay tuned for the first of a three-part series that will examine what benefits TCQ confers in our relatively modest third-generation testbed in single-user and multi-user setups! And you thought it was easy? A good discussion on technology and differences, and how ATA gets around inability to do SCSI-style reordering of I/O and isn't really the same animal when it comes to tagged command queueing that we keep hearing about. Starting next month (June 2004), Seagate's Barracuda SATA HD (200GB only) will integrate a new function/feature named: Native Command Queuing. It allows instruction to be reorganized while the are queuing in order to optimize their executions.
Based on a test, a NCQ HD @ 7200rpm could challenge a Raptor 74GB, and that's quite a result. This function/feature could be really useful for MacOSX-based computers since the system and multitask processes are performing numerous disk access request.
A good discussion on technology and differences, and how ATA gets around inability to do SCSI-style reordering of I/O and isn't really the same animal when it comes to tagged command queueing that we keep hearing about. Any form of tagged command queuing, by nature, requires firmware support in both the controller and the hard drive. It is also, necessarily part of the interface.
An interface isn't simply a set of wires. It is a set of specifications that defines and enables the movement of data.
If you want to modify the manner in which data is sent then you must account for it in the interface specification. Tagged Command Queuing is never a driver feature. Enabling controller support may require driver support in some implementations, but such implementations are only turning on or off a firmware feature, and since hard drives don't have drivers, in the end, you always need firmware support. Serial ATA (SATA) and Serial Attached SCSI (SAS): Adaptec FS4500 Fibre Channel-to-Serial ATA RAID and JBOD storage arrays Western Digital WD2500JB Seagate Savvio 2.5-inch drive SAS/SATA Storage Review looks at the SATA version Techreport: Only the Raptor manaaged to edge out the K7250 in SATA, but it looks to be a significant boost over the earlier 180GXP. In the it's listed above even the Cheetah 10K.6 and X15.2. Poor ATA RAID for Cuda IV OWC pdf manuals of jumper settings for all the SCSI and IDE drives.
Seagate FAQ points out that a single drive, using Cable Select, will perform as master (ID 0) even when placed on the gray middle connector. The technology that made this and the a 'best of class.' Last edited by TZ; at 05:36 AM. Serial ATA Organization - SATA-II specification Adaptec supported system and hardware requirements SATA Data Sheet pdf Silicon Image PCI Express to Serial ATA (SATA) II host controller SATA Organization Some 40 computer component and peripheral suppliers have formed the Serial ATA International Organization pdf or SATA-IO.
It's roadmap extends to 3Gbit/s technology (no surprise) and to increasing membership (no surprise again). Coincidentally, Silicon Image revealed the SATALink SiI 3132, the first PCI Express to Serial ATA (SATA) II host controller. It's targeted at PC and server motherboards.
Seagate demoed a tiered storage solution at Intel's Developer Forum. It combines SAS (Serial Attached SCSI) and SATA drives in the same enclosure using a common backplane. It contains Cheetah drives with a SAS interface, and Barracuda drives. SAS means both SAS drives for online storage and SATA drives for near-line storage can be contained in a single enclosure. (See our recent Xiotech report here.) Since SAS and SATA drives share a common backplane, a single SAS-based subsystem can handle a broad range of duties, from high-availability online storage to data migration, disk-to-disk backup and storage of regulatory compliance or other reference data. Seagate, (SATA disks) along with Marvell (SATA Silicon) and AMCC (RAID controllers) also demoed end-to-end 3Gbit/s SATA technology at the Intel Developer Forum. Techworld SATA news.
Is the answer for those who wish to use legacy ATA drives on a SATA bus. These cards come with a SATA cable (with straight connectors) and a power adapter that supplies power to the adapter card. In testing we have found no loss of performance in ATA drives running this converter on a SATA bus like the FirmTek SeriTek/1S2. This adapter comes with a Marvel SATA chip which is the very same chip used on many SATA drives.If you can turn TCQ (Raptor) on and off (via firmware) you can test how it performs (StorageReview.com). If you can' disable it, then you have a way to test how TCQ alone affects performance. LSI Logic next week plans to unveil the industry's first enterprise SATA-II RAID controller.
The controller offers twice the speed of LSI's SATA-I controller, or about 3 Gbytes-per-second throughput, and includes native command queuing to improve disk access speed and full backward compatibility with SATA-I hard drives. It supports all major operating systems and includes a 72-hour backup battery to protect data in case of a system power failure.
LSI's controller has a port multiplier that theoretically lets it control up to 120 SATA drives. 'Thirty-two is more practical. Between 32 and 60 drives, you start getting diminishing returns on performance.' SATA-II drives can later be moved from the controller to a serial-attached SCSI (SAS) controller when those controllers become available later this year. The controller list at $549, are expected to ship late this quarter. They will be available through distributors such as Bell Microproducts, Ingram Micro, Tech Data, Arrow Electronics and Microland.
New HP Storage Gear Integrates Into ILM Solution Hewlett-Packard on Wednesday expanded its ILM portfolio. New this week is the MSA 1500cs array which allows both high-speed SCSI and low-cost SATA hard drives to be installed behind the same controller. The original MSA 1500 could be configured with all SCSI or all SATA drives, said Harbist. By combining the two types of drives behind a single controller, customers can get tiered storage within one enclosure. Starting list price for an MSA 1500cs enclosure and controller without hard drives is $8,995.
LSI Logic MegaRAID SATA 300-8x, promises to move the technology even further into the SAN mainstream. The LSI card incorporates native command queuing support, which significantly increases performance in random I/O operations.
The technology is great for high data- throughput environments. Each SATA port on the card is capable of managing up to 4 Tbytes of storage. As many as eight drives can be connected at once.
The card is built on Intel components and includes Intel's IOP331 integrated I/O processor. The Intel chip offers higher overall performance for existing I/O processors in storage and embedded applications. The card supports RAID levels 0, 1, 5, 10 and 50. The RAID management capabilities are extensive, and the card ships with two BIOS level utilities and other tools integrators need to ensure proper configurations. The card also has an optional battery backup to ensure fault tolerance.
There are two versions of battery backup support for the MegaRAID SATA 300-8x. The MegaRAID LSIBBU03 has an MSRP of $99, and the MegaRAID LSIiBBU01 has an MSRP of $155. The LSIiBBU01 offers longer retention time in case of a power outage as well as additional self-monitoring and management features. In the case of system failure, the battery's memory cache can enable a backup of up to 72 hours. The card has an MSRP of $595 and is covered by a three-year warranty. Last edited by TZ; at 01:29 PM. Transfer Rate - Begin Maxtor MaXLine III (300 GB SATA) - 65.7 Seagate Barracuda 7200.7 (200 GB SATA) - 64.7 Western Digital Caviar WD2500JD 2nd Sample (250 GB SATA) - 60.6 Hitachi Deskstar 7K250 (250 GB SATA) - 60.4 Hitachi Deskstar 7K400 (400 GB SATA) - 60.4 Western Digital Caviar WD2500JD (250 GB SATA) - 57.9 Seagate Barracuda 7200.7 (160 GB SATA) - 56.2 review Seagate 400GB features 3 plates of 133GB each.
Ultrastar 10K300 Maxtor's Atlas 10K V SCSI hard drive SCSI DRIVES have long boasted higher reliability, longer warranties, faster spindle speeds, and generally better performance. Maxtor's new Atlas 10K V is packed with 73.5GB platters and available in capacities up to 300GB.
With a 10K-RPM spindle speed, seek times between 4.0 and 4.9ms, and a maximum sustained transfer rate of 89MB/sec, the Atlas 10K V should be no slouch when it comes to performance, either. Read on for more on what the Atlas 10K V offers and how its performance compares to a handful of 10K and 15K-RPM SCSI drives, plus a couple of Serial ATA Raptors. The Seagate Cheetah 15K.4 is the first drive that does not improve on its predecessor's multi-user performance- an interesting if dubious distinction. Some people are awaiting the Maxtor Atlas 15K II. Why RAID doesn't boost load times.
Western Digital RAID Edition HDDs. Their major goal was to design a storage solution boasting highest reliability, which would meet the Enterprise devices standards. In reality it means that the hard disk drives should be able to work reliably in a 24x7, continuous duty cycle environment.
From Xbitlabs. Last edited by TZ; at 10:51 AM. NEARLINE HIGH-CAPACITY SATA DRIVES Drives such as Maxtor's long-standing MaXLine series and WD's newly announced Caviar RE2 target the same market.
The NL35 Series SATA disc drives surpass ordinary desktop-class SATA drives that claim nearline readiness by actually providing the reliability and integration benefits needed for nearline applications like disc-to-disc backup, archive, and tiered storage. These features include: Workload Management, Error Recovery Control, One-Step Microcode Download, and Write-Same technology. These features work together to perform a range of tasks from monitoring and managing each drive for reliability optimization, to streamlining error recovery, to simplifying multi-drive field upgrades, and more. Seagate understands the importance of workload, reliability, and integration ease for serving the needs of modern IT professionals. Using the industry's most rigorous nearline MTBF test-bed script and applications, Seagate's NL35 Series SATA earns a genuine one million hour MTBF rating. The NL35 Series SATA also includes 16 MB cache and Native Command Queuing (NCQ).
First up will be a roundup-style look at a trio of 500 GB enterprise offerings from the big three American drive manufacturers: Seagate's NL35.2, Maxtor's MaXLine Pro, and Western Digital's Caviar RE2 WD5000. Tests are with NCQ both enabled and disabled. WD Caviar RE2 looks like the one to beat. Last edited by TZ; at 01:21 PM. Configuration Interface: ATA Ultra-133, or Serial ATA-150 or Serial ATA-300 (SATA II) Interface transfer rate (max.
MB/sec): ATA - 133 or Serial ATA: 150 (1.0) or 300 (2.0) Capacity (GB) Data heads (physical) Data disks: (number of platters) Performance Data buffer2: 2, 8, or 16 MB Rotational speed (RPM): 7,200 Media transfer rate (max. Mbits/sec): 843.2 (this to me is one of the best gauges of performance) Sustained data rate (MB/sec): 67.8- 32.9 (zone 0 - 29) Seek time average, (read, typical (MS))3: 8.5 (this is where a lot of specs don't measure up in real world, the Hitachi T7K250 is right on the mark. Reliability Error rate (non-recoverable): 1 in 10E14 Start/stops (at 40° C): 50,000 (start and stop is harder on a drive than continuous use, though not all desktop drives are designed for 24/7 for 3-5 yrs. Acoustics Idle (Bels): 2.8 (very low noise and quiet). A Battle of the Mammoths - Hitachi vs. Western Digital vs.
Seagate: the WD4000YR took the lead performing 769 IO operations per second under the Business Winstone 2004 test and 505 IO operations per second in the Content Creation Winstone 2004 part of the test. Seagate's 500GB 7200.9 came nowhere close to these numbers, but rather took a few steps back. The WD4000YR also performed the best out of the three in the application load time tests with applications starting at around half a second faster consistently, which is a big deal. With this test, we were not only testing the specified application load times, but also general access times and service times. Those of us who are familiar with hard drive technology know that the higher transfer rates that the 3.0Gb/sec models have to offer can only be achieved when multiple disks are striped, but we never thought that a 1.5Gb/sec unit could out-do those with double the theoretical transfer rates. Last edited by TZ; at 09:01 AM.
Notebook 2.5' Serial ATA drive The 4026GAX drive from Toshiba is remarkable for having the biggest buffer among the test participants – 16 megabytes. Toshiba SuperSlim MK4026GAX mobile hard drives. I don't think it will be as fast as, say, the 7.2K Hitachi w/8MB cache.
A larger drive also tends to be faster. Storage Review doesn't 'do' mobile hard drives. So no help there. Fujitsu's 2.5' Serial ATA hard drives will ship in at the end of April.
The tiny drives spin at 5,400RPM, come with 8MB of cache, and even have their own native command queuing scheme to improve performance. Fujitsu's 2.5' drives are really meant for notebooks, but their diminutive footprint also makes them tempting for small form factor PCs. Last year, Lost Circuits' Michael Schuette built a four-drive RAID 0 array into one of Shuttle's XPC cubes using similar Fujitsu notebook drives and only two internal 3.5' drive bays. Perhaps, but it's still pretty cool. Two New Members of the Family Arrived The fastest and the winner of this race is the new Seagate Momentus 7200.1 (ST910021A).
It boasted an indisputable advantage over the hard drives with 5,400rpm spindle rotation speed, so no wonder it won. At the same time it easily defeated the only opponent it has so far - the Hitachi Travelstar 7K60 (HTS726060M9AT00) with 7,200rpm spindle rotation speed – due to the higher per-platter data density. MacBook Pro: Western Digital hard drives can cause kernel panics due to conflict with sudden motion sensor.
The 'ShockGuard' mechanism built into Western Digital Scorpio drives conflicts with the MacBook and MacBook Pro anti-shock mechanism (sudden motion sensor), results in a kernel panic when certain types of physical movement are applied to the machine. ShockGuard technology that WD employs is interfering with the Macs own head parking technology. the slightly more expensive Seagate Momentus does not have built-in shock protection, we haven't had a single kernal panic. Nice benchmark for various choices for your MacBook Pro, etc. Over on Barefeats. Last edited by TZ; at 01:31 PM.
(Intech Software) QuickBench 4.0 as a part of their SpeedTools Utilities. It's a benchmarking tool we've often used to test small random reads and writes as a way of simulating the typical activity of an OS X boot drive.
(Though originally OS X only, it will soon be offered in a Windows version, too.) Download the SpeedTools Utilities for MacOS X Complete Package Version 2.7.2 released: April 20, 2007 - File Size: 17.7 MB This Installer can be used as a complete updater too! Last edited by TZ; at 05:06 AM. Samsung 1TB HD The Spinpoint F1 models are 3.5' HD with storage capacity ranging from 320GB to 1TB.
To reach 1TB storage, Hitachi has been using 5 plates of 200GB each. Seagate is claiming to be able to reach the same capacity with 4 plates of 250GB each. Samsung released a 1TB HD based on 3 plates (333GB each).
Using only 3 plates should increase reliability while reducing power consumption and heat release. Manufacturing cost could also be lower. The Spinpoint F1 HDs will be available in SATA II format and will feature from 8 to 32 MB of cache depending on the model (320, 500, 750 and 1000GB).
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