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¡@ RAID5 Card Q&A |
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| Q0: | What is RAID5 Card? | ||
| A0: | In LyCOM, RAID5 Card means the SATA Host adapter (Including PCI, PCI-X, PCI-e, Cardbus and ExpressCard) which can support RAID5, RAID0, RAID1, RAID10, BigDrive and JBOD functions by software setting. | ||
| Q1: | Can I install non-Raid (base) driver or SATARAID driver on RAID5 card? | ||
| A1: | No, only SATARaid5 driver is used on RAID5 card. | ||
| Q2: | How to use a single hard drive on RAID5 Card? | ||
| A2: | New RAID5 GUI (Graphical User Interface) has a new ¡§Pass-Thru¡¨ feature. ¡§Pass-Thru¡¨ allows access to a new hard drive or a used one that without any SATARAID5 configuration. If your current driver doesn¡¦t support this ¡§Pass-Thru¡¨ feature, please download the new one and install it. | ||
| Q3: | Why 2Port SATA II Host Card can support Raid5 or Raid10? | ||
| A3: |
It needs Port Multiplier and multiple Drives. When SATA Port Multiplier and multiple Drives are installed on 2Port SATA II Host card, the setting of Raid 0, 1, 10, 5 and JBOD will appear on the screen accordingly and automatically. |
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| Q4: | What is Raid0? | ||
| A4: | RAID0 also known as Stripping or FAST. Stripping is a performance-oriented, non-redundant data mapping technique. Stripping arrays need at least two drives and use them to form a larger virtual disk. | ||
| Q5: | What is Raid1? | ||
| A5: | RAID1 also known as Mirroring or SAFE. Mirroring creates an identical twin for a selected disk by having the data simultaneously written to two disks. If a read failure occurs on one drive, the system will read the data from the other drive. Raid1 need two drives to store the same data. | ||
| Q6: | What is Raid10? | ||
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A6: |
RAID10 also known as RAID 0+1 or Mirrored-Striping or ¡§SAFE and FAST¡¨. RAID10 combine both Striping and Mirroring technologies to provide both the performance enhancements that come from Striping and the data availability and integrity that comes from Mirroring. There are at least four hard drives is need for RAID10 setting. | ||
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Q7: |
What is RAID5? | ||
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A7: |
RAID5 also known as Distributed Parity RAID. RAID 5 adds fault tolerance to Disk Striping by including parity information with the data. The data and parity information is arranged on the disk array so that parity is written to different disks. There are at least three hard drives is need for RAID5 setting. | ||
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Q8: |
What is JBOD? | ||
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A8: |
The JBOD (Just a Bunch of Disks , also known as Contiguous) means a single logical drive that can either be an entire disk drive or a segment of a disk drive. JBOD is the Contiguous configuration option when creating RAID Groups (or sets) in the SATARAID5 Manager utility. | ||
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Q9: |
What is CONCATENATED? | ||
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A9: |
Concatenated also known as Big Drive, The Concatenated combines multiple disks or multiple segments of disks into a single large disk. It does not provide any data protection or performance improvement but can be useful for utilizing leftover space on all disks. |
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Q10: |
How to make sure RAID5 setting is ready for working? | ||
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A10: |
RAID5 setting may cost hours for component ready and function available, please be patient for that. Especially if Raid5 setting by BIOS, please Click ¡§Task Manager¡¨ to make sure there is ¡§Green¡¨ color on the selected components and then Raid5 setting is completed. | ||
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Q11: |
May use the existing used hard drive to RAID5 Card? | ||
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A11: |
Yes, it is workable. But, the working data on your existing used HDD may NOT work and be treated as a blank drive when you migrate it to RAID5 Card environment. | ||
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Q12: |
Why Windows Device Manager can NOT detect my hard drives, but BIOS can detect it? | ||
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A12: |
In RAID storage system, RAID managing information is saved on the drive. If without the correct RAID Creating by BIOS or GUI, Windows Device Manager can NOT recognize the existing of hard drive. | ||
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Q13: |
Why RAID5 GUI can NOT recognize my migrating used drive? | ||
| A13: |
When
migrating the used HDD to LyCOM RAID5 card, we better to perform the
"Delete Raid Set" on BIOS setting, since the used HDD may have some
different format of RAID managing information and LyCOM RAID5 GUI may be
confused by this data and no recognition. |
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| Q14: | Why Rebuilding take so long time? | ||
| A14: | The ¡§Rebuilding¡¨ function on Raid 1 or Raid10 always spend long hours for component ready, data copying and function available, especially for high volume data. Please be patient for the rebuilding ready. | ||
| Q15: | How to create the RAID setting on RAID5 Card? | ||
| A15: |
If 32bit
PCI or 64bit PCI-X or PCI-Express RAID5 Host card, RAID5 sets can be
created and managed by either the BIOS utility setting or SATARAID5 GUI
setting under Windows. Only SATARAID5 GUI is functional, as CardBus
adapter or ExpressCard/34 Adapter for Notebook. |
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| Q16 |
How to get the PDF file of complete RAID5 manual for RAID5 Host Adapter? |
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| A16 |
Please find the SATARAID5-UserGuide_v1.40.pdf under the GUI folder of Driver CD on your card package or get a email copy by contact Support@lycom.com.tw or sales@lycom.com.tw. |
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| Q17 | OK to use multiple RAID5 Cards in one server system? | ||
| A17 |
Yes, it works, even mixed with different LyCOM model# of RAID5 card in one server system. RAID5 GUI can manage each RAID5 card individually but NO cross Raid5 setting is provided. |
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| Q18 | Can we add RAID5 Cards to one PC system, which has RAID card (No RAID5, only RAID0 or RAID1) already? | ||
| A18 |
No, only one RAID GUI or RAID5 GUI can exist in PC system, so LyCOM
don¡¦t recommend to use the mixed RAID and RAID5 cards in one system. If
you decide to sacrifice the RAID GUI and use the RAID5 GUI only in
system, you must remove the existing RAID GUI from your PC system first
before RAID5 Card hardware installation, otherwise the system will hang
up. After RAID5 card, RAID5 driver and RAID5 GUI be successfully
installed, RAID5 GUI can manage the activities of RAID5 card only, no
RAID card activity. |
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| Q19 | Whether I can plug a 64bit PCI-X SATA II ¡V3Gbps RAID5 card into a motherboard 32bit PCI slot and test it? | ||
| A19 |
Yes, it works. |
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| Q20 | Does RAID card support ATAPI device? | ||
| A20 | No, RAID card doesn¡¦t. | ||
| Q21 | OK to install Windows OS on RAID5 Drives? | ||
| A21 | LyCOM RAID5 card is software RAID5, which is managed and manipulated by Software Driver. It¡¦s NOT good to let Driver layer charge the tasks of OS layer, so LyCOM don¡¦t recommend to use the RAID5, RAID0, RAID1, RAID10 as OS Disks. Please create the RAID setting and use the RAID features on Data Disks only. | ||
| Q22 | How to get Linux drivers? | ||
| A22 |
Please
visit
http://www.siliconimage.com/support/index.aspx?pid=0&cid=0&
or contact Support@lycom.com.tw
or find Linux drivers on the folder of /Linux at package Driver CD. |
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| Q23 | After Raid5 card installation, Windows can¡¦t restart and hang during booting, unless CD Shutoff. | ||
| A23 |
It sounds
the issue on Mother board BIOS, Please contact Mother board maker to
have the latest BIOS update. You may also contact Support@lycom.com.tw and try to update the BIOS of Raid5 card. |
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| Q24 | When BIOS booting, how many SATA drives will be recognized through Port Multiplier? | ||
| A24 | Only one SATA Drive at Port1 of PM is recognized by BIOS. After OS booting, all drives behind Port Multiplier are working. | ||
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¡@ SATA II, eSATA, SATA Q&A ¡@ |
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| Q1: | What¡¦s the difference between SATAII, eSATA and SATA? | ||
| A1: |
In LyCOM, SATAII stands for 2nd Generation Serial ATA, which must
support Port Multiplier and NCQ, and eSATA is the external SATA for
external connection. So,
¡@ |
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| Q2: | What¡¦s the connector difference between SATA, eSATA and LyCOM enhanced SATA? | ||
| A2: |
As below connector pictures,
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SATA |
eSATA |
LyCOM Enhanced SATA |
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| Q3: | Why LyCOM don¡¦t use 2 layer PCB on SATA products? | ||
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A3: |
Compare to USB2.0 transfer rate 480 Mbps and 1394a 400 Mbps, SATA 1500 Mbps and 3Gbps are exactly high speed and high frequency products. LyCOM R&D must guarantee the impedance and Eye¡VPatterns quality in all our products, so LyCOM not only use 4-layer or 6-layer PCB, and always implement the best placement, best trace width and best trace length in our SATA products |
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Q4: |
How to enjoy the high capacity SATA hard drive on my current PC, that has IDE port only and no SATA port? |
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A4: |
¡@ |
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Q5: |
How to add more IDE devices (like Optical Drive) on my PC system, that has free SATA Ports but no extra IDE Port? |
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A5: |
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Q6: |
Why my motherboard SATA port can¡¦t recognize an IDE DVD ROM with ST-101L (the BridgeBoard for IDE Device to SATA MotherBoard)? |
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A6: |
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Q7: |
Can I use 1st Generation SATA Host Card to SATA Port Multiplier and enjoy the Multiple Drives in one SATA channel? |
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A7: |
No, only SATA II Host Adapter supports Port Multiplier function and 1st Generation SATA doesn¡¦t support. LyCOM eSATA II Host Adapters on PCI (ST-125, ST-125NR), PCI-X (64-105e), PCI-e (PE-100N, PE-105N, PE-102, PE-102R5), CardBus (PC-112, PC-112R5), ExpressCard (EK-102, EK-102R5, EK-202) are the best Hosts for Port Multiplier Bridge Board (ST-126DA, ST-126RM) or MultiBay Storage System (MB-1e4S). |
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Q8: |
When I connect
multiple disks to Port Multiplier, why only one HDD was recognized in
the BIOS/Setup of the SATA II Host controller? |
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A8: |
Only GUI supports Port Multiplier and BIOS doesn¡¦t, so SATA II BIOS just recognizes one HDD at Port1. After OS booting, you can create and manage All disks behind Port Multiplier. |
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Q9: |
When I plug a new SATA drive to LyCOM SATA Host Adapter, the PC freezes. |
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A9: |
It sounds the PC is trying to recognize the unknown SATA device and then PC system is waiting for a long time-out acknowledgement from device. Please contact Support@lycom.com.tw or sales@lycom.com.tw to have the BIOS update utility & latest SATA BIOS and upgrade your adapter BIOS then. |
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| Q10: | Can I install SATARaid5 driver or SATARaid driver on non-Raid card? | ||
| A10: | No, only non-Raid driver (base driver) is used on non-RAID card. | ||
| Q11: |
When I connect
ST-137M and CF to Mother board SATA port, BIOS can detect the CF but
system hang up on Windows booting. |
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| A11: | It is Mother board drivers issue. Please contact Mother board maker to have new SATA DRIVER update. | ||
| Q12: |
After the SATA
BIOS update, I plug a LyCOM SATA Host Adapter (without Hard Drive) to
PC, the System freezes. |
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| A12: | You did update to the wrong code for the BIOS of SATA card. Please return the board to LyCOM for reworking. | ||
| ¡@ | |||
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¡@ USB and FireWire Q&A ¡@ |
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| Q1: | Why only NEC USB2.0 chipset and Texas Instrument FireWire chipset be used in LyCOM products? | ||
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A1: |
NEC is the world¡¦s first one to have USB2.0 chipset on year 2000 and same story to TI on first FireWire400 and FireWire800 chipset. LyCOM customers always request for the reliable and best compatible and long life cycle supported products, so LyCOM R&D just use NEC USB2.0 chipset and Texas Instrument FireWire chipset after our fully complete chipset evaluation. Even CardBus small space, LyCOM insists to use NEC and TI discrete chipset on PC-103 (1394+USB Combo CardBus). |
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¡@ ExpressCard/34 ¡@ |
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| Q1: | Why LyCOM develop ExpressCard/34 Host Adapter only, no ExpressCard/54 Host? | ||
| A1: |
Some new
Notebooks have ExpressCard/54 slot and some of them have ExpressCard/34
slot (like Apple MacBook Pro). ExpressCard/34 Host adapter can support
ExpressCrad/34 and ExpressCard/54 Notebook both, but ExpressCard/54 Host
Adapter Can NOT support ExpressCard/34 notebook. |
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¡@
Why Serial ATA
Serial ATA (SATA), an evolutionary
high-performance interface for storage devices to replace the
Parallel ATA, is used to connect ATA
and ATAPI devices, including CDs, DVDs, tapes devices, high capacity
removeable devices, zip drives, and CD-RWs.
Compare with parallel ATA interface, Serial ATA addresses some
shortcomings and provides a scalable platform to support several
generations of future storage devices.
Serial ATA is a drop-in solution that is compatible with today's
software, which runs on the new architecture without modification. It
provides for systems which are easier to design, with cables that are
simple to route and install, smaller cable connectors, improve silicon
design, and lower voltages which alleviate current design requirements
in Parallel ATA. Lower Voltage. Parallel ATA requires integrated circuits to tolerate input signals as high as 5 volts. Serial ATA reduces the signaling voltages to approximately 250 millivolts (¼ volt).
Pin Efficiency. The parallel ATA
interface has 26 signal pins going into the interface chip. Serial ATA
uses only 4 signal pins, improving the pin efficiency and accommodating
a highly integrated chip implementation.
Improved Cable and Connector Plant.
The parallel ATA cable and connector plant is a bulky cable made up of
unwieldy 80 conductor ribbon cables and 40 pin header connectors. Serial
ATA uses a much smaller serial cable similar in appearance to modern
telephone cables. Eliminating the cable nest improves the system¡¦s
airflow and cooling, and offers greater freedom in chassis design.
Master-Slave Interaction. With
today¡¦s parallel ATA implementation, pairs of devices share a common
cable in a master-slave relationship. This interaction between devices
results in the available bandwidth being shared between the devices.
Additionally, since the devices on the cable interact, they must be
jointly qualified, resulting in the substantial expansion of the system
integrators¡¦ qualification matrix in order to comprehend all possible
combinations of devices.
Serial ATA is a point-to-point interface where each device is directly
connected to the host via a dedicated link. Each device, therefore, has
the entire interface bandwidth dedicated to it, and there is no
interaction between devices. This means software can be streamlined,
eliminating the overhead associated with coordinating accesses between
the master and slave device sharing the same cable. Serial ATA is compatible at the register level with parallel ATA. This means Serial ATA requires no changes to existing software and operating systems in order to function, and it provides backward compatibility with existing operating environments. It has already been demonstrated to run with Microsoft Windows* 98, Microsoft Windows 2000, and Linux operating systems without the need for any special software drivers. |
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