Date: Thu, 24 Jun 2004 14:22:39 +0200 From: "Daniel Eriksson" <daniel_k_eriksson@telia.com> To: "'FreeBSD Current'" <freebsd-current@freebsd.org> Subject: Multiple choices for RAID-0, best performance? Message-ID: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT1PdsKAAAAQAAAArboJgGwHU0apkIeCcojdKwEAAAAA@telia.com>
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(previously posted on -questions without any replies) With the recent addition of a geom-enabled vinum, and the discussed (but not yet functional?) geom stripe module, we now have 4 different choices for software RAID-0 on ATA devices (the other two are regular vinum and ataraid). I'm currently using a mix of vinum and ataraid on one of my servers, but I haven't been in a position to do any proper performance measurements yet (it's a production server). Are there any obvious performance differences between the different ways of doing RAID-0? Any difference in resource usage? Also, will the RAID-0 performance (transfer speed and/or resource usage) of ataraid be affected a lot depending on what controller is used? For example would there be any performance difference between ataraid on a HPT374-based card (such as the Highpoint RocketRAID 454) and one of the new Promise cards (which we have really good drivers for afaik). Daniel Eriksson
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