Memory management scheme for cost-effective disk-on-modules in consumer electronics devices
A disk-on-module (DOM) is a NAND flash memory-based device with legacy I/O interface which does not require any special device driver due to the presence of flash translation layer (FTL). FTL is an intermediate software layer which makes DOMs look like conventional hard disk drives. Since DOMs are u...
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| Veröffentlicht in: | IEEE transactions on consumer electronics 2008-11, Vol.54 (4), p.1776-1783 |
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| container_title | IEEE transactions on consumer electronics |
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| creator | Lee, Young-Sik Jung, Dawoon Kim, Jin-Soo Maeng, Seungryoul |
| description | A disk-on-module (DOM) is a NAND flash memory-based device with legacy I/O interface which does not require any special device driver due to the presence of flash translation layer (FTL). FTL is an intermediate software layer which makes DOMs look like conventional hard disk drives. Since DOMs are usually used in mass-market consumer electronics devices, they are extremely cost sensitive; hence FTL should be able to run in a severely resource-constrained environment. In this paper, we propose TinyFTL, a new FTL which employs an efficient memory management scheme for DOMs with a very small amount of memory. TinyFTL divides the mapping information into multiple levels and caches only recently-accessed mapping information in memory. According to experimental evaluation, TinyFTL shows the performance comparable to or better than the existing FTLs with only 4.3- 6.2% of memory requirement (12 KB) for 16 GB NAND flash memory. |
| doi_str_mv | 10.1109/TCE.2008.4711234 |
| format | Article |
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FTL is an intermediate software layer which makes DOMs look like conventional hard disk drives. Since DOMs are usually used in mass-market consumer electronics devices, they are extremely cost sensitive; hence FTL should be able to run in a severely resource-constrained environment. In this paper, we propose TinyFTL, a new FTL which employs an efficient memory management scheme for DOMs with a very small amount of memory. TinyFTL divides the mapping information into multiple levels and caches only recently-accessed mapping information in memory. According to experimental evaluation, TinyFTL shows the performance comparable to or better than the existing FTLs with only 4.3- 6.2% of memory requirement (12 KB) for 16 GB NAND flash memory.</description><subject>cache management</subject><subject>Cache storage</subject><subject>Consumer electronics</subject><subject>Devices</subject><subject>Disk drives</subject><subject>disk-on-module</subject><subject>Driver circuits</subject><subject>Electronic devices</subject><subject>Electronics</subject><subject>Embedded computing</subject><subject>flash translation layer</subject><subject>Global Positioning System</subject><subject>Hard disks</subject><subject>Legacy</subject><subject>Mapping</subject><subject>Memory management</subject><subject>NAND flash memory</subject><subject>Navigation</subject><subject>Personal digital assistants</subject><subject>Translations</subject><subject>Universal Serial Bus</subject><issn>0098-3063</issn><issn>1558-4127</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kT1PwzAQhi0EEqWwI7FEDDC5nO04TkdUlQ8JxFImBitxzpCSxMVOKvXf46qFgYHpTrrnvdPpIeScwYQxmN4sZvMJB8gnqWKMi_SAjJiUOU0ZV4dkBDDNqYBMHJOTEJYALJU8H5G3Z2yd3yRt0RXv2GLXJ8F8xCaxzifGhZ6itWj6eo1JVYdP6jraumpoMCR1F4kuDC36BJsIedfVJiQVrmuD4ZQc2aIJeLavY_J6N1_MHujTy_3j7PaJGiFFTwVaI1JmARRWiICcY1EqpjJhlcQMmJCshBxTLkuYgmRVJqqsLFKJWFglxuR6t3fl3deAoddtHQw2TdGhG4LOlYQsnTIRyat_SZEJDvFMBC__gEs3-C5-ofOMC8Vy2N6FHWS8C8Gj1Stft4XfaAZ6K0VHKXorRe-lxMjFLlIj4i_-M_0G7YmIOQ</recordid><startdate>20081101</startdate><enddate>20081101</enddate><creator>Lee, Young-Sik</creator><creator>Jung, Dawoon</creator><creator>Kim, Jin-Soo</creator><creator>Maeng, Seungryoul</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on consumer electronics, 2008-11, Vol.54 (4), p.1776-1783 |
| issn | 0098-3063 1558-4127 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | cache management Cache storage Consumer electronics Devices Disk drives disk-on-module Driver circuits Electronic devices Electronics Embedded computing flash translation layer Global Positioning System Hard disks Legacy Mapping Memory management NAND flash memory Navigation Personal digital assistants Translations Universal Serial Bus |
| title | Memory management scheme for cost-effective disk-on-modules in consumer electronics devices |
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