FAQ (frequently asked questions)
In the FAQ section we would like to answer our customers´ frequently asked questions.
Questions about Solid State Disks (SSD)
- What is the key diffenece between SLC and MLC NAND Flash?
What is the key diffenece between SLC and MLC NAND Flash?
The important point to remember is that while MLC NAND has some advantages in terms of higher density and lower cost per bit, it suffers from low performance, low endurance and low reliability.
For additional information please reed the attached document.
- Commercial or Industrial grade flash products?
Commercial or Industrial grade flash products?
There are major differences in the commercial and industrial market segments in the flash storage products industry; hence products targeting to these markets are different.
This application note below outlines the differences between the products for the two markets and explains why OEM customers should consider using industrialgrade flash storage products from Cactus Technologies for reliable mass storage needs.
- What is the difference between Static and Dynamic Wear Leveling?
What is the difference between Static and Dynamic Wear Leveling?
Static Wear Leveling
This technique wear levels over both dynamic and static data areas.
Dynamic Wear Leveling
This technique only wear levels over dynamic data areas.
Please read the Application Note below for more information.
- What is the key diffenece between SLC and MLC NAND Flash?
Questions about Cactus Tech. flash products
- FAQ´s on Cactus Industrial grade flash storage products
FAQ´s on Cactus Industrial grade flash storage products
Please download the document below to get answers about:
- I use an CompactFlash/PCMCIA to ATA adapter and the BIOS cannot detect the card as an IDE drive.
- The product´s performance is slow. What can I do?
- What is Multiword DMA and how can I use that to enhance performance?
- I cannot enable DMA mode under Microsoft Windows.
- I removed the CF/PCMCIA card from the system during read/write access and now the card is not working. What can I do?
- I want to install Microsoft Windows on a Cactus CompactFlash/PCMCIA card but at setup I received an error saying that no fixed disk is detected; what can I do?
- Why does the PC Card runs slowly under PCMCIA mode?
- CF card and 8bit memorymapped mode access is returning garbage data!
- What kind of Wear Leveling does Cactus Tech. use? Static or Dynamic?
What kind of Wear Leveling does Cactus Tech. use? Static or Dynamic?
Cactus Technologies is able to deliver products with industry leading endurance and product lifespan by using static wear leveling in combination with dynamic wear leveling.
Please find further information about Wear Leveling methods in the FAQ section "Questions about Solid State Disks (SSD)"
- How does Cactus Technologies handle a unexpected power outage (Write Abort)?
How does Cactus Technologies handle a unexpected power outage (Write Abort)?
The “Make-Before-Break” algorithm always ensure data in the single sector buffer is written successfully to the flash before updating the ECC and other on-device data structures.
Even if new data is only partially written to flash before power outage, the on-device housekeeping data structures will remain intact and reflect the last known good state of the device. The completed data writes will remain intact, and the only data loss
incurred by the write abort is the data not yet written to the flash when the power is unexpectedly removed from the device.
- FAQ´s on Cactus Industrial grade flash storage products
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