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Linux Storage and Filesystem Workshop, part 2Linux Storage and Filesystem Workshop, part 2Posted Apr 16, 2009 18:43 UTC (Thu) by wmf (guest, #33791)In reply to: Linux Storage and Filesystem Workshop, part 2 by jzbiciak Parent article: Linux Storage and Filesystem Workshop, day 2
I wonder if SSDs will ever gain an additional level of hierarchy, such as an NVRAM layer over the flash layer. "Hot write" zones could then live in the NVRAM layer and only be committed to flash infrequently.If you're willing to pay $50/GB, the STEC ZeusIOPS and TMS RamSAN provide something like this. For affordable SSDs I expect DRAM caches to range between tiny and nonexistent.
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Linux Storage and Filesystem Workshop, part 2 Posted Apr 17, 2009 22:10 UTC (Fri) by nix (subscriber, #2304) [Link]
But why? RAM caches are not not tiny-to-nonexistent for inexpensive server
hardware RAID cards, for instance (Areca, for instance, has a 256Mb cache in its 4-port cards, rising to 2Gb I think in the huge ones).
Now 256Mb may not be immense but it's surely not tiny either.
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