Ivan Voras wrote: > Dag-Erling Smørgrav wrote: >> Ivan Voras <ivoras_at_freebsd.org> writes: >>> Maxim Sobolev wrote: >>>> That's no longer true. You can't get more than 5-10MB/s from >>>> seek-intensive RAID0 with two 15K drives, while 20-30MB/s is not a >>>> problem for the comparable priced/sized SSD drive. >>> Can you point me at a vendor with SSDs of such characteristics? >> Kingston CF Elite, 20 / 25 MBps write / read >> Kingston CF Ultimate, 40 / 45 MBps write / read >> >> SanDisk Extreme III CF, 20 MBps >> SanDisk Extreme IV CF, 45 MBps >> >> Sony CF 300X, 45 MBps >> >> These are just a few of those available from my regular supplier. > > These are all "normal" CompactFlash cards, for which the widely > available size seems to be 16 GB max, right? I was thinking about > something more like this: > http://gizmodo.com/gadgets/peripherals/adatas-128gb-solid-state-drive-sees-the-light-of-day-231693.php > or this: http://www.mtron.net/English/Product/pc_msd1000.asp > > Did you (or anyone) deploy CF drives for production servers? If you're using compact flash for something that's constantly updated like a ZIL, wouldn't your CF card die real quick? I've deployed CF in production, but as a read-only medium with occasional writes only for configuration updates. From what I understand the specialized expensive solid-state drives that you guys are discussing are better designed for this type of write duty whereas CF would probably not last very long. Since a ZIL is not really seek-intensive, why not just offload it to its own standard hard disk that has its write caching and all other similar data-corrupting technologies disabled?Received on Sat Dec 15 2007 - 17:15:42 UTC
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